Thesis TH quattro - Receiver AUDISON - Free user manual and instructions

Product Type	Receiver (Car Audio Power Amplifier)
Brand	Audison
Model	Thesis TH quattro
Number of Channels	4 (configurable as 4, 3, or 2 channels)
Output Power (Hi-Current Mode, 4 Ch @ 4 Ω)	160 W RMS per channel
Output Power (Class A Mode, 4 Ch @ 4 Ω)	55 W RMS per channel
Frequency Response	5 Hz - 70 kHz (-3 dB)
Signal-to-Noise Ratio	104 dBA (1 V, max power)
THD (1 kHz, 4 Ω, 90% power)	< 0.03%
Input Sensitivity (Analog)	0.3 - 1.2 V (Hi) / 1.2 - 4.8 V (Lo)
Input Impedance (Pre IN)	Not specified (typical ~10 kΩ)
Load Impedance (Hi-Current Mode)	Min 2 Ω (4 Ch), 1 Ω (2 Ch)
Load Impedance (Class A Mode)	Min 4 Ω
Power Supply Voltage	11 - 15 VDC
Idling Current (Hi-AB Class)	6.6 A
Fuse Rating	100 A (AFS type)
Dimensions (W x L x H)	259 x 510 x 67 mm (10.2 x 20.1 x 2.6 in)
Weight	10.3 kg (22.7 lbs)
Digital Input	Optical (S/PDIF, up to 192 kHz / 24 bit) and AD Link (RJ-45)
Analog Inputs / Outputs	Stereo RCA IN A & IN B, Pre-out bypass (OUT A)
Crossover	Removable modules, Hi-pass/Lo-pass/Band-pass, 12 or 24 dB/oct, 32 frequencies
Control Network	AC Link (RJ-12), USB interface, ACNet PC software
Remote Control	DRC (Digital Remote Control, optional) - Volume, Source, Balance, Fader, Sub Volume
Dual Power Modes	Class A, Hi-AB Class, Hi-Current, Energy Saving
Included Accessories	Crossover kit (modules + boards), cables (AC Link, AD Link, USB), fuse, CD, manual

Frequently Asked Questions - Thesis TH quattro AUDISON

What is the difference between the four Dual Power modes (Class A, Hi-AB, Hi-Current, Energy Saving)?

The Dual Power feature lets you choose between sound quality and power efficiency. Class A offers the highest audio quality but limits load to 4 Ω and consumes more current (8.9 A). Hi-AB Class is the default, balancing quality and power (6.6 A idle). Hi-Current provides maximum power into low impedance loads (down to 1 Ω) with lower bias (3.6 A). Energy Saving minimizes consumption (2.6 A) for extended listening with engine off, but reduces power.

How do I set up the electronic crossover on the TH quattro?

The crossover uses plug-in modules. Insert the TH-MXR.1 board and select frequency modules (e.g., WM1, WT1) for each channel. Set the mode (Hi-pass, Lo-pass, or Bandpass) using switches on the board. In mono mode (3/2 Ch), you can choose 12 or 24 dB/oct slope via the ASC menu. The crossover only affects the speaker outputs, not the Pre Out.

Can I use the TH quattro with a digital source?

Yes, the TH quattro has an optical S/PDIF input (up to 192 kHz/24 bit) and an AD Link (RJ-45) bus for digital audio. To use the digital input, you must connect the optional DRC remote control, which acts as the volume and source selector. The amplifier’s internal DAC converts the digital signal.

What is the DRC and why is it required for digital input?

DRC stands for Digital Remote Control. It is an optional accessory that provides master volume, source selection (analog vs. optical), balance, fader, and subwoofer volume control. When using the optical digital input, the DRC is mandatory because the ASC system needs it to manage the digital signal and control the amplifier. Without DRC, only analog input works.

How do I connect multiple TH amplifiers in a system?

Use the AC Link (RJ-12) bus to create a control network. Each amplifier must have a unique ADRS address (set via rotary switch on the front panel, from 0 to 9). For digital audio, use the AD Link (RJ-45) to daisy-chain the digital signal. The first amplifier receives the source, and subsequent amplifiers receive the signal via AD Link. The ACNet software or DRC manages the entire system.

How do I adjust input sensitivity on the TH quattro?

On the input control panel, turn the A LEVELS and B LEVELS knobs. Each knob has two ranges: Hi (0.3–1.2 V) and Lo (1.2–4.8 V). Press and hold the knob for 3 seconds to switch between ranges. The display shows the current sensitivity value. Alternatively, use the ACNet software for fine adjustment.

What should I do if the amplifier goes into protection mode?

The ASC display will show a protection message. Common causes: Overload (check speaker impedance), Service (DC offset), Check Speakers (short circuit), or Ov. Temperature (thermal). The amplifier will attempt to reset automatically after 5 attempts for some errors. Reduce volume, check connections, and ensure proper ventilation. If the issue persists, contact Audison support.

How do I configure the amplifier for 3-channel operation?

Set the rear panel switch to 3 Ch. In this mode, A channels remain stereo, and B channels become a mono bridged channel (mix of left and right). Connect speakers accordingly (see manual page 15). Adjust the crossovers and Amp ID through the ASC menu to assign the bridged channel as subwoofer or midbass.

Can I control the TH quattro without the DRC?

Yes, you can still operate the amplifier using the built-in ASC interface (front panel buttons and LCD) and the optional ACNet software via USB. However, without DRC, you lose the ability to use digital input, remote volume control, and the memory presets for Dual Power. The amplifier will work in analog mode with default settings.

How do I clean and maintain the TH quattro amplifier?

Disconnect the power before cleaning. Use a dry, soft cloth to wipe the exterior. Do not use any solvents or abrasive cleaners. Ensure ventilation slots are free from dust. Periodically check all connections and the fuse. The amplifier has no user-serviceable internal parts; refer to a qualified technician for repairs.

USER MANUAL Thesis TH quattro AUDISON

THESIS - The project 4

Packaging Contents 5

Installation 6

Fixing template 7

Rear Panel 11

Functions Description 11

How to remove the panel / the protection knob 11

How to connect the power supply 12

How to replace the fuse 13

How to connect the speakers in 4 Ch mode 14

How to connect the speakers in 3 Ch mode 15

How to connect the speakers in 2 Ch mode 16

Input controls 17

Functions Description 17

How to move from one sensitivity range to another 17

Front Panel 18

Functions Description 18

How to connect the remote 19

How to connect the source through the preamplified analog input (4 Ch mode) 20

How to connect the source through the preamplified analog input (3 Ch mode) 21

How to connect the source through the preamplified analog input (2 Ch mode) 22

Electronic Crossover 23

TH in 4 Ch mode - Filtering A channels and B channels 24

TH in 3 Ch mode - Filtering A channels 24

TH in 3 Ch mode - Filtering B channels (Setup X-Over Slope 12 dB) 25

TH in 2 Ch mode - Filtering A channels and B channels (Setup X-Over Slope 12 dB) 25

TH in 3 Ch mode - Filtering B channels (Setup X-Over Slope 24 dB) 26

How to insert 27

Examples 28

Two Way, multi-amplified, TH amplifier, Analog Input 28

Two Way + Sub, multi-amplified, TH amplifier, Analog Input 29

Three Way + Sub, multi-amplified, TH amplifier, Analog Input 30

Three Way + Sub, multi-amplified, with and without TH amplifiers, Analog Input 31

THESIS 32

ASC (AMPLIFIER STATUS CONTROLLER) 32

INPUTS AND PRE-AMPLIFIER 32

ASC - Amplifier Status Controller 33

Functions Description 33

Setup Amplifier: Main Input 34

Digital Inputs 35

How to adjust the volume control and input selector using a digital source 35

Front Panel 36

How to achieve same output volume level using an analog source

(with its own volume control) and a digital source 36

How to connect a source through the optical digital input

in a system featuring more than one TH amplifier (4 / 3 / 2 Ch mode) 37

How to connect a source through the optical digital input

in a system featuring other non-TH amplifiers (4 / 3 / 2 Ch mode) 38

How to connect an analog and a digital source

in a system featuring more than one amplifier (4 / 3 / 2 Ch mode) 39

How to connect an analog and a digital source

in a system featuring more than one amplifier (4 / 3 / 2 Ch mode) 40

THESIS

INDEX

ASC - Amplifier Status Controller 41

Setup Amplifier: Amp ID on 4 Ch Mode 41

Setup Amplifier: Amp ID on 3 Ch Mode 42

Setup Amplifier: Amp ID on 2 Ch Mode 43

Setup Amplifier: Amp ID-Preout 44

Front Panel 45

How to adjust the PRE OUT analog input 45

ASC - Amplifier Status Controller 46

Setup Amplifier: X-Over Slope of bridged channels (B) with TH in 3 Ch mode 46

Setup Amplifier: X-Over Slope of bridged channels with TH in 2 Ch mode 46

DUAL POWER & BIAS CONTROL 47

Setup Amplifier: DUAL POWER Settings 47

DUAL POWER Values 48

How to change presets on the Memory 49

Examples

50

Three Way + Sub, multi-amplified, TH amplifiers, Digital Input 50

Three Way + Sub, multi-amplified, TH amplifiers, Analog + Digital Input 51

Three Way + Sub, multi-amplified, with and without TH amplifiers, Analog + Digital Input 52

ASC - Amplifier Status Controller 53

Status Monitor 53

Runtime Monitor 54

Info and Alert sentences 55

DRC - Digital Remote Control 56

Info and Alert sentences 57

How to connect 58

How to install 58

ACNet - Audison Control Network 59

Amplifier Setting: Identification 62

Amplifier Setting: Inputs 63

Amplifier Setting: Sensitivity and Preout Level 64

Amplifier Setting: Dual Power Memory 65

System Audio Control 66

Amplifier Status 67

System Amplitude Setup 68

System Dual Power Setup 69

Technical Specifications 70

THESIS

The Project

The roads travelled to reach "the Sound" have created a conceptual cross-road, where state of the art digital technology and traditional techniques have gone their separate ways.

They both have benefits of a different nature, yet are capable of merging together to achieve much higher Sound quality levels.

The Thesis amplifiers are born from these considerations. The parts related to signal amplification are manufactured using the highest level of analog technology while, at the same time, the input section along with the processing and monitoring functions of the amplifier are the result of the most advanced digital technology.

The TH quattro is a four-channel power amplifier, designed for use in car. It is technologically progressive, featuring original circuitry, with extraordinary sound, consistent with Audison tradition.

Sections:

This manual is divided into sections allowing the use of the TH amplifier in standard settings or using its specific features in "digital" settings. Each section is marked by its corresponding bookmark.

General Part:

The TH amplifiers need to be connected like any other amplifier, in compliance with safe working conditions. Installation as well as power supply and speaker connections have to be made properly, following the standard methods a specialty store normally follows.

Classic Domain:

Despite the endless settings and customising possibilities ASC (Amplifier Status Controller) offers, the TH amplifiers can also be used in a traditional way, taking advantage of the analog inputs and of the controls which provide the signal to the final stages.

The setting of the sensitivity, stereo or bridged mono configuration, the inputs sensitivity, the electronic crossovers on slide-through boards as well as the PRE bypass out, anyway let to include the TH within the traditional systems or to build amplifying chains with absolute audiophile quality.

Digital Domain:

The TH amplifiers feature ASC (Amplifier Status Controller) which provides several factory functions for the complete control of all the amplifier's functions.

Heart of the system is a digital power microprocessor. It manages the amplifier functions and communicates with the user through a control panel as well as the Display Monitor, featuring the DRC remote control or, in a more complete and direct way, through the ACNet Audison Controller Network software.

The ASC menu allows the amplifier set up, monitors the working conditions, viewable through a Status Monitor feature, also making the data available on the display intermittently. A USB connector enables the connection of the system to a computer, while the AC Link (Audison Control Link) allows the creation of communication network. The software will take care of the functional operations for all the amplifiers within the whole chain (system), providing a simple and complete interface. A revolutionary method for configuration which, up to know, were impossible to achieve with traditional designs.

Packaging Contents

• TH quattro amplifier
• Printed Quick Start Guide
• 1.0 m AC Link (RJ-12) cable
• 1.0 m AD Link (RJ-45) cable
• 2.0 m USB cable
• USB/AC Link converter
• TH crossover kit composed of:
• N. 2 TH-MXR stereo module
• N.16 frequency set modules (SS1-SW1-SW2-WM1-WM2-MT1-WT1-MT2)
• N. 4 CFB customizable modules
• N. 4 Fixing screws and plastic bushing
• Multispanner tooling
• 100 A AFS spare fuse
• INSTALLATION CD with:

CD ROM TEST SIGNALS

ACNet Software Track 01. sine sweep (0 dB) - 10 min

This Advanced Manual (.pdf) Track 02. white noise (-12 dB) - 15 min

AC Link Drivers Track 03. pink noise (0 dB) - 10 min

USB-ACNet Drivers Track 04. sine wave 50 Hz (0 dB) - 2 min

Track_05. sine wave 1 kHz (0 dB) - 2 min

Available accessories (not included):

DRC - Digital Remote Control

• DRC control panel
• 4.5 m DRC/AC Link cable
• N.2 fixing brackets

Coiled cable with connectors, no text or symbols visible

Installation

External size

510 mm / 20.07" 259 mm / 10.19"

How to fix

1) 2)

Technical diagram of an electronic device with labeled components and red annotations indicating parts of each part.

Fixing size

478 mm / 18.82" f 4.3 x 10.5 mm 3/16" x 7/16" 160 mm / 6.30"

THES

Fixing te

Warning: to properly print the template at the real size, select the "None" option into the "Page Scaling" setup. After printing, cut the sheets along the blue reference line and then glue them.

Architectural floor plan showing wall and floor layout with structural elements (no text or labels)

THESIS

Fixing template

A B

A B A B II, A: IN OUT A DIGITAL AUDIO/GRASS CONTROL BUS REM +15 GND -15 OUT - AD Link - IN IN OPTICAL 1 - AC Link - 2 OUTINADORE Mode A level panel spacer 66 mm (2.6") Mode B level panel spacer 26 mm (1.02")

II: B OUT A CONTROL BUS BEM DIGITAL AUDIO/COMY AD Link - IN IN OPTICAL 1 - AC Link - 2 OUTINADRS level panel spacer 66 mm (2.6") level panel spacer 26 mm (1.02")

Rear Panel

Functions Description

5 A Channels + LEFT RIGHT + - CAV 12V B Channels + LEFT RIGHT + - 3214 A Channels & Channels + LEFT RIGHTS + 10V + 12V + LEFT RIGHTS + 10V + 12V + 10V + 12V

1 • POWER: Positive and negative terminals for 12 V car voltage supply. Size of connectors is 10 mm diameter (2 AWG). Warning: connect positive and negative (GND) with polarity as indicated in the terminal. A wrong connection cause an amplifier damage.
2 • +CAP: Terminal to connect positive pole of external capacitor.
3 • A CHANNELS: Terminals to connect A Channel Left and Right speakers system. Size of connectors is 6 mm (6 AWG). Pay attention to connect speaker with polarity as indicated, wrong polarity causes a phase problem in the audio system.
4 • B CHANNELS: Terminals to connect B Channel Left and Right speakers system. Size of connectors is 6 mm (6 AWG). Pay attention to connect speaker with polarity as indicated, wrong polarity causes a phase problem in the audio system.
5 • FUSE: Protection Fuse Connection Audison AFS 100 A.

How to remove the panel / the protection knob

Technical diagram of a device rear panel with labeled ports and wiring, showing connections to a power outlet.

Rear Panel

How to connect the power supply

CONNECTION Super Capacitor Ground L: min 16 mm (5/8") L: max 26 mm (1°) Ø MAX: 2 AWG Fuse Holder Battery Ground

Rear Panel

How to replace the fuse

Fuse AFS 100 A (provided) A Channels LED Touch A Channels LED Touch A Channels B Channels LEFT RIGHT MCAP POWER LEFT RIGHT 12 V

Rear Panel

How to connect the speakers in 4 Ch mode

About Input's configuration see pages: - 20 ÷ 22 - Analog Input - 37 ÷ 40 - Digital Input CHANNEL A X-Over L: min 12 mm (1/2") L: max 16 mm (5/8) Ø MAX: 6 AWG X-Over Right CHANNEL B X-Over X-Over Left Right

Rear Panel

How to connect the speakers in 3 Ch mode

About Input's configuration see pages: - 20 ÷ 22 - Analog Input - 37 ÷ 40 - Digital Input CHANNEL A X-Over Left L: min 12 mm (1/2") L: max 16 mm (5/8") Ø MAX: 6 AWG X-Over Right CHANNEL B Out: Mix L + R

Rear Panel

How to connect the speakers in 2 Ch mode

About Input's configuration see pages: - 20 ÷ 22 - Analog Input - 37 ÷ 40 - Digital Input X-Over Left L: min 12 mm (1/2") L: max 16 mm (5/8") O MAX: 6 AWG X-Over Right CHANNEL BCHANNEL A

Input controls

Functions Description

123 PUSH - Hi: Lo: A LEVELS B 0.3 ÷ 1.2V RMS 1.2 ÷ 4.8V RMS 2Ch(IN A) 3Ch 4Ch IN A IN A IN B

1 • A / B LEVELS: A channels (Left and Right) and B channels (Left and Right) input sensitivity adjustment. It features 2 ranges, Hi from .3 to 1.2 VRMS and Low from 1.2 to 4.8 VRMS. By pushing for three seconds on the knob you can change the range. To see voltage value and range check the ASC display. Those controls are also available if ACNet software is used.
2 • 4 / 3 / 2 Ch Mode: Setting the switch on 4 Ch, the amplifier has to work in 4 channels mode, switching on 3 Ch the B channels will set in mono (Bridge), in 2 Ch position the A channels will set in mono too and the TH quattro has to work in Dual Mono mode.
3 • IN A / IN B: This switch allows to drive the A channels through the IN A inputs and the B channels through the IN B inputs or to drive the amplifier through the IN A inputs. In 2 Ch mode you must use the IN A inputs, IN A Left will drive the A channels (mono) and IN A Right will drive the B channels (mono).

How to move from one sensitivity range to another

1)2)

graph LR
    A["Low level: TH quattro with SENS: Lo 1.19V L ----+----H"] --> B["High level: TH quattro with SENS: Hi 1.13V L ----+----H"]
    B --> C["Output: Push - A LEVELS B"]
    C --> D["Low level: PUSH - A LEVELS B"]
    D --> E["High level: Push - A LEVELS B"]
    E --> F["Output: Push - A LEVELS B"]

TURN THE KNOB TO REGULATE THE LEVEL OF THE A CHANNELS. PRESS THE KNOB FOR 3" TO CHANGE THE RANGE FROM HI TO LO AND VICE VERSA. IF YOU ARE USING THE IN B CHANNELS INPUT, REPEAT THE TUNING STEP ON THE B LEVELS KNOB.

WARNING: be careful when passing from LO to HI level!

NOTE: sensitivity is automatically set on the lowest value of Hi Level range, but the difference between the two levels could be dangerous for your system.

Front Panel

Functions Description

1 2 3 1:4 A N OUT A DIGITAL AUDIO/OUT CONTROL BUS REM +15 GND -15 OUT - AD Link - IN IN OPTICAL 1 - AC Link - 2 OUTINACRE 5 8 9764

1 • IN A: Analog Left / Right A channels Input
2 • IN B: Analog Left / Right B channels Input
3 • OUT A: Bypass Analog Output Left / Right. It's the same signal of IN A inputs. To check out how they work see page 20 ÷ 22 and 37 ÷ 40
4 • REM IN/OUT: Turn On Remote Input and Output for other devices
5 • DC OUT: ±15 V supply for external devices

CONTROL BUS

6 • AC Link 1 and 2: RJ-12 terminals to connect other devices provided with AC Link such as TH amplifiers, DRC (Digital Remote Control), Audio Digital Processors, AC Link/USB Adapter for Personal Computer connection. The use of connector 1 or 2 is interchangeable. The RJ-12 connectors provided cable is normally used for digital telephone connection but is not compatible with digital telephone technology. It features 6-way connectors. The AC Link connection can give power supply to the amplifier external devices.
7 • ADRS: It's the digital address of the amplifier when you want to realize a system with more than one TH. Switch selector from 0 to 9 to set in a different number on each TH amplifier of the AC Link network. Maximum allowed chain amplifiers number is 10.

Warning: a different number has to be assigned to each amplifier starting from number zero, otherwise the ACLink network will not work properly. The selected number is shown on the Status display between brackets.

IN A DC OUT DIGITAL AUDIO OUT A CONTROL BUS REM +15 OUT -15 OUT - AD/Link IN IN OPTIC ADRS 1 - AC Link - 2 IN OUT

DIGITAL AUDIO IN/OUT

8 • AD Link: is an Audio Digital Bus that can carry 8 channels. It employs a Class 5 or 6 shielded Ethernet LAN cable with the provided shielded connectors, normally used in computer networks.

- AD Link IN: RJ-45 terminal input to connect digital audio coming from previous TH amplifier or the provided external device AD Link such as Digital Audio Processor (bit one / bit Ten D).

- AD Link OUT: RJ-45 terminal output to connect to the next TH amplifier.

9 • OPTICAL IN: Input to connect the provided optical cable with TOSLINK connectors. The optical audio digital signal in S/PDIF standard is supplied from provided sources such as CD/DVD players. It accepts input PCM stereo signals up to 192 kHz / 24 bit.

Front Panel

How to connect the remote

TH quattro IN: 7 mm (5/16") MAX: 16 AWG DIGITAL AUDIO BUS CONTROL BUS REM +15 GND -15 OUT - AD Link - IN IN OPTICAL 1 - AC Link - 2 OUTINADRS Rem In Rem Out Rem In THISS audison

Front Panel

How to connect the source through the preamplified analog input (standard mode)

TH configured in 4 Ch mode

Input: IN A (and IN B) Stereo Analog

Pre Out: Stereo Analog (=IN A)

Power Output: 4 Channels

A Channels: Stereo

B Channels: Stereo

graph TD
    A["TH quattro Main Input Analos"] --> B["Default preset"]
    B --> C["Main Input Analos"]
    D["REMA OUT"] --> E["Rear Pre Out (Optional)"]
    E --> F["Front Pre Out"]
    F --> G["Rem In"]
    G --> H["Stereo Pre In"]
    H --> I["OUTRADRS"]
    J["MAIN INDEUT"] --> K["MAIN INDEUT"]
    L["MAIN INDEUT"] --> M["MAIN INDEUT"]
    N["MAIN INDEUT"] --> O["MAIN INDEUT"]
    P["MAIN INDEUT"] --> Q["MAIN INDEUT"]
    R["MAIN INDEUT"] --> S["MAIN INDEUT"]
    T["MAIN INDEUT"] --> U["MAIN INDEUT"]
    V["MAIN INDEUT"] --> W["MAIN INDEUT"]
    X["MAIN INDEUT"] --> Y["MAIN INDEUT"]
    Z["MAIN INDEUT"] --> AA["MAIN INDEUT"]

Power Output: to carry out connections, check page 14 ÷ 16

DRC: not required

PRE OUT: To cascade-connect other amplifiers when using the analog input you MUST use the Pre Out analog output.

Front Panel

How to connect the source through the preamplified analog input (standard mode)

TH configured in 3 Ch mode

Input: IN A (and IN B) Stereo Analog

Pre Out: Stereo Analog (=IN A)

Power Output: 3 Channels

A Channels: Stereo

B Channels: Mono (MIX L+R)

graph TD
    A["TH quattro Main Input Analos"] --> B["Default preset"]
    B --> C["Main Input Analos"]
    D["REMA OUT"] --> E["Rear Pre Out (Optional)"]
    E --> F["Front Pre Out"]
    F --> G["Rem In"]
    G --> H["Stereo Pre In"]
    H --> I["OUTRADRS"]
    J["MAIN IN A"] --> K["Digital Audio Control Bus REM"]
    L["MAIN IN B"] --> M["2Ch (IN A) 3Ch 4Ch"]
    N["MAIN IN C"] --> O["OUT A OUT A"]
    P["MAIN IN D"] --> Q["OUT - AD Link IN"]
    R["MAIN IN E"] --> S["IN OPTICAL 1 - AC Link - 2"]
    T["MAIN IN F"] --> U["OUT - 15 GND - 15 OUT - AD Link IN"]

Power Output: to carry out connections, check page 14 ÷ 16

DRC: not required

PRE OUT: To cascade-connect other amplifiers when using the analog input you MUST use the Pre Out analog output.

Front Panel

How to connect the source through the preamplified analog input (standard mode)

TH configured in 2 Ch mode

Input: IN A Stereo Analog

Pre Out: Stereo Analog (=IN A)

Power Output: 2 Channels

A Channels: Mono (IN A Left)

B Channels: Mono (IN A Right)

graph TD
    A["TH quattro Main Input Analos"] --> B["Default preset"]
    B --> C["Main Input Analos"]
    D["REMO OUT"] --> E["Stereo Pre Out"]
    E --> F["Rem In"]
    G["MAIN INPUT Analos"] --> H["Default preset"]
    H --> I["Main Input Analos"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#fcc,stroke:#333
    style H fill:#cfc,stroke:#333

Power Output: to carry out connections, check page 14 ÷ 16

DRC: not required

PRE OUT: To cascade-connect other amplifiers when using the analog input you MUST use the Pre Out analog output.

Electronic Crossover

Representing a high-end solution, the simplicity and power of the analog system found in the HV venti is thrust forward again in the TH, making use of the amplifiers versatility.

The crossover ONLY acts on the amplifier power output, not on the PRE OUT output which is always a bypass.

The alignment is a Butterworth type as, when either of the TH amplifiers is set up in a mono configuration, the slope of the filter can be set for 24 dB Oct operation.

Each TH quattro is factory provided with:

• a pair TH-MXR.1 crossover board, containing the electronics required to set, through selectors, the operation mode as well as the Low-Pass filter slope.
• two pair of eight crossover modules each, featuring high-precision resistor packs corresponding to 32 cut-off frequencies placed at equal distance from 18Hz thru 7.5kHz.
• four customisable crossover modules (to build them, see the "Custom Module" section in this manual).

Modules

Modules Hi-pass module Lo-pass module Switch to set Lo-pass attenuation slope (see page 26) Switch to set filter operation mode (Hi-pass, Lo-pass, Bandpass) How to insert the module Frequency set modules: settable both in Hi-pass and Lo-pass mode SS1: 18-22-27-33 Hz SW1: 42-50-60-75 Hz SW2: 90-110-130-150 Hz WM1: 180-220-270-330 Hz MM2: 420-500-600-750 Hz WT1: 880-1k1-1k3-1k5 Hz WT2: 1k8-2k2-2k7-3k3 Hz MT1: 4k2-5k0-6k0-7k5 Hz

Custom Module

$$ \text { Res } (k \Omega) = \frac {5 0 0 0}{\text { Freq } (\mathrm{Hz})} $$

$$ \text { Example: Desired cut - off frequency } = 2. 5 \mathrm{kHz} \quad \xrightarrow [ 2 5 0 0 ]{5 0 0 0} \frac {\text { Resistor's value to use }}{- 2 \mathrm{k} \Omega} $$

n.7 resistor x 2 kΩ

Use 1 % tolerance 0.25 W resistors

Electronic Crossover

TH in 4 Ch Mode

Filtering A channels and B channels

TH in 3 Ch Mode

Filtering A channels

P05H A LEVELS B 3Ch/IN A 3Ch 4Ch IN A IN A IN B

BY-PASS

DO NOT INSERT TH-MXR.1MODULE

HI-PASS

270 Hz WM1 1 Hz TH-SXR.1 220 Hz Hz Hi PASS Filters Mode TH-MXR.1 Frequency Setting Lo Band Hi LO PASS

LO-PASS

HI PASS Filters Mode TH-MXR.1 Frequency Setting Lo Band Hi Mone Lo Pass LO PASS 24 dB 270 Hz 200 Hz WM1 TH-SXR.1 180 Hz Disabled

BANDPASS

WM1 270 Hz 200 Hz TH-SXR. 160 Hz 2 Hz 3 Hz 2.7 kHz WT1 1.8 kHz TH-SXR. Frequency Setting TH-MXR.1 Mono Lo Pass LO PASS Hi PASS Filters Mode Lo Band Hi 12 24 dB Disabled

Electronic Crossover

TH in 3 Ch Mode

Filtering B channels

TH in 2 Ch Mode

Filtering A channels (Left) and B channels (Right)

Setup Xover Slope 12 dB (default configuration)

When the amplifier is set up in a mono configuration, it is possible to set the crossover slope at 12 or 24 dB/Oct.

- The TH-MXR.1 board must be inserted;

- You need to operate on the ASC specific Setup Amplifier step. (See page 46).

Through the Status Monitor it is possible to check anytime the presence of the filter as well as the set slope.

TH quattro X-Over A: 12dB X-Over B: 12dB MENU ENTER DOWN UP PRESS- A LEVELS B 12x-1.00000 12x-4.00000 24h (A/A) 30Hz 40Hz IN A IN A IN B

HI-PASS

270 Hz WM1 TH-SXR.1 220 Hz 2Hz 3Hz 1 Hz 10 Hz ▲ HI PASS ▲ Filters ▲ Low Band Hi Frequency Setting ▲ LO PASS ▲ TH-MXR.1

LO-PASS

TH-MXR.1 Frequency Setting TH PASS Filters Mode Lo Band Hi Th Mono Lo Pass LO PASS 270 Hz 200 Hz WM1 TH-SXR.1 180 Hz 12 24 dB Disabled

BANDPASS

270 Hz 220 Hz WM1 TH-SXR.1 2 kHz TH-SXR.1 TH-SXR.1 27 kHz 22 kHz TH-SXR.1 3.3 kHz TH-MXR.1 Frequencies Setting ▲ HI PASS ▲ Filters Mode Lo Band Hi ▲ LO PASS ▲ Mono Lo Pass Disabled

Electronic Crossover

TH in 3 Ch Mode Filtering B channels

Setup Lo-pass Xover Slope 24 dB

When the amplifier is set up in a mono configuration, and ASC is set at 24 dB Oct., it is anyway possible to set the crossover Low-pass at 12 or 24 dB Oct.

• The TH-MXR.1 board must be inserted;
• You need to operate on the TH-MXR.1 switch. Through the Status Monitor it is possible to check anytime the presence of the filter as well as the set slope.

HI-PASS

270 Hz WM1 1 Hz 200 Hz TH-SXR.1 2 Hz 3 Hz 2 Hz 4 Hz 5 Hz 6 Hz 7 Hz 8 Hz 9 Hz 10 Hz ▲ HI PASS ▲ Filter ▲ LO PASS ▲ Frequency Setting TH-MXR.1 Lo Band Hi

TH quattro X-0.4er A: 24dB X-0.4er B: 24dB MENV/ ENTER DOWN UP Power- A LEVELS B 16x1200Hz 13x450Hz I/O (IN A) 10Hz 60Hz INA IN A IN B

LO-PASS

VWM1 270 Hz TH-SXR.1 180 Hz Frequency Setting TH-MXR.1 Lo Band Hi ▲ HI PASS ▲ Filters Mode ▲ LO PASS ▲ Mono Lo Pass TH-MXR.1 Mono 12 24 dB

BANDPASS

270 Hz 200 Hz WM1 1.3Hz TH-SXR-1 2.7 Hz WT1 1.8 kHz TH-MXR.1 Frequency Setting Hi PASS Filters Mode Lo Band Hi Mono Lo Pass LO PASS 12 24 dB

Electronic Crossover

How to insert

Not inserted module (default configuration)

configuration)

TH quattro X-Over B: No X-Over B: No MENU ENTER DOWN UP

You can verify the crossover presence by checking the ASC Status Monitor. See page 53

A Chan TH-MXF B Ch TH-M In this case

A Channels TH-MXR.1 module

B Channels TH-MXR.1 module

TH quattro X-Over A: 12dB X-Over B: 12dB MENU ENTER DOWN UP

In this case you can verify both presence and slope of the crossover by checking the ASC Status Monitor, however it is not possible to modify its slope. See page 53.

Example: Two Way, multi-amplified, TH amplifier Analog Input

Woofer Tweeter RIGHT CHANNEL WT2 or MT1 WT2 or WT1 WM2 or WT1 Rear Panel Front Panel TH quattro Rear (Optional) Pre Out Front Source ACNet (Optional use) USB / AC Link Converter DRC (Optional use)

In order to build a Standard System you have to:

1- Insert the TH-MXR.1 boards with its relative filter modules (if required);
2- Connect power supply;
3- Connect the speaker system;
4- Connect signal inputs (IN A or IN A / IN B) and remote turn on;
5- Select 4 Ch mode on the Input Controls Panel (select IN A or IN A / IN B);
6- Adjust sensitivity on the Input Controls Panel "A LEVEL" or "A/B LEVEL";

In order to add DRC to the System you also need to:

7- Set ADRS on the Front Panel (in position 1 for instance);
8- Set Amp ID for A channels (on FRONT TW for instance) and B channels (on FRONT WF for instance) in the ASC Setup Amplifier; this way DRC will be enabled to adjust general Volume, Balance and Fader.

In order to adjust the system through the ACNet:

On this system the steps 1, 2, 3, 4, 5 and 7 need to be performed.

The Software will temporarily bypass the DRC functionality in order to manage in a more direct and easier way all of the amplifier functions during the adjustment and modifying phases, including input sensitivity adjustment along with peak detector.

REMARK:

Into the amplifier ASC, the Dual Power and Runtime Monitor functions will anyway stay active (by default) and ready to change it directly (see page 52 and following pages).

Example: Two Way+Sub, multi-amplified, TH amplifier Analog Input

Woofer Tweeter WT2 or MT1 RIGHT CHANNEL WT2 or MT1 WM2 or WT1 Rear Panel SW1 or SW2 SS1 TH quattro adject Th quattro (1) FR - D - 0.01 Front TU FR - T - 0.01 front-on FR - H - W-0.01 Rear Panel TH uno adject Th uno (1) FR - T - 0.01 Sweeler Rear Panel Front Panel Pre Out Rear (Optional) Front TH quattro DRC (Optional use) REM Out Source AC/Net (Optional use) USB / AC Link Converter Example. for point 4 TH is TH In order the Sys need to 7-Give the each of th different s and 2); 8- Configu ASC Setu amplifiers A Ch as F Front WF 9- Set the T as TH Am general V Fader as In order t system

Subwoofer

In order to build a Standard System:

You have to follow same steps as per the above

example. The only difference is for point 4, where the second TH is TH uno (mono);

In order to add DRC to the System you also need to:

7-Give the Front Panel ADRS of each of the two amplifiers a different setting (Example: 1 and 2);
8- Configure the Amp ID on the ASC Setup Amplifier of the two amplifiers by setting TH quattro A Ch as Front TW and B Ch as Front WF and TH uno as Sub;
9- Set the TH quattro ID Preout as TH Amp, to let DRC adjust general Volume, Balance, Fader as well as Sub Volume.

In order to adjust the system through the

ACNet:

Once the steps 1, 2, 3, 4, 5 and 7 have been performed, the Software will temporarily bypass the DRC in order to manage in a more direct and easier way all of the system functions.

REMARK:

On ASC Dual Power and Runtime Monitor will anyway stay active (by default) and ready for changes (see page 47 and following pages).

Example: Three Way + Sub, multi-amplified, TH amplifier Analog Input

graph TD
    A["Source"] --> B["TH quattro"]
    B --> C["TH due"]
    C --> D["TH uno"]
    D --> E["ACNet (Optional use)"]
    B --> F["TH quattro"]
    F --> G["TH due"]
    G --> H["TH uno"]
    H --> I["Subwoofer"]

    subgraph TH_quattro
        J["REM Out"] --> K["Pre Out"]
        K --> L["Rear (Optional)"]
        L --> M["Front"]
        M --> N["INAM OUTA"]
        N --> O["DIGITAL AUDIO & COMMERCIAL BUS REM"]
        O --> P["1X 20Hz 14"]
        P --> Q["DC OUT"]
        Q --> R["DC OUT"]
        R --> S["DC OUT"]
        S --> T["DC OUT"]
        T --> U["DC OUT"]
        U --> V["DC OUT"]
        V --> W["DC OUT"]
        W --> X["DC OUT"]
        X --> Y["DC OUT"]
        Y --> Z["DC OUT"]
        Z --> AA["DC OUT"]
        AA --> AB["DC OUT"]
        AB --> AC["DC OUT"]
        AC --> AD["DC OUT"]
        AD --> AE["DC OUT"]
        AE --> AF["DC OUT"]
        AF --> AG["DC OUT"]
        AG --> AH["DC OUT"]
        AH --> AI["DC OUT"]
        AI --> AJ["DC OUT"]
        AJ --> AK["DC OUT"]
        AK --> AL["DC OUT"]
        AL --> AM["DC OUT"]
        AM --> AN["DC OUT"]
        AN --> AO["DC OUT"]
        AO --> AP["DC OUT"]
        AP --> AQ["DC OUT"]
        AQ --> AR["DC OUT"]
        AR --> AS["DC OUT"]
        AS --> AT["DC OUT"]
        AT --> AU["DC OUT"]
        AU --> AV["DC OUT"]
        AV --> AW["DC OUT"]
        AW --> AX["DC OUT"]
        AX --> AY["DC OUT"]
        AY --> AZ["DC OUT"]
        AZ --> BA["DC OUT"]
        BA --> BB["DC OUT"]
        BB --> BC["DC OUT"]
        BC --> BD["DC OUT"]
        BD --> BE["DC OUT"]
        BE --> BF["DC OUT"]
        BF --> BG["DC OUT"]
        BG --> BH["DC OUT"]
        BH --> BI["DC OUT"]
        BI --> BJ["DC OUT"]
        BJ --> BK["DC OUT"]
        BK --> BL["DC OUT"]
        BL --> BM["DC OUT"]
        BM --> BN["DC OUT"]
        BN --> BO["DC OUT"]
        BO --> BP["DC OUT"]
        BP --> BQ["DC OUT"]
        BQ --> BR["DC OUT"]
        BR --> BS["DC OUT"]
        BS --> BT["DC OUT"]
        BT --> BU["DC OUT"]
        BU --> BV["DC OUT"]
        BV --> BW["DC OUT"]
        BW --> BX["DC OUT"]
        BX --> BY["DC OUT"]
        BY --> BZ["DC OUT"]
        BZ --> CA["DC OUT"]
        CA --> CB["DC OUT"]
        CB --> CC["DC OUT"]
        CC --> CD["DC OUT"]
        CD --> CE["DC OUT"]
        CE --> CF["DC OUT"]
        CF --> CG["DC OUT"]
        CG --> CH["DC OUT"]
        CH --> CI["DC OUT"]
        CI --> CJ["DC OUT"]
        CJ --> CK["DC OUT"]
        CK --> CL["DC OUT"]
        CL --> CM["DC OUT"]
        CM --> CN["DC OUT"]
        CN --> CO["DC OUT"]
        CO --> CP["DC OUT"]
        CP --> CQ["DC OUT"]
        CQ --> CR["DC OUT"]
        CR --> CS["DC OUT"]
        CS --> CT["DC OUT"]
        CT --> CU["DC OUT"]
        CU --> CV["DC OUT"]
        CV --> CW["DC OUT"]
        CW --> CX["DC OUT"]
        CX --> CY["DC OUT"]
        CY --> CZ["DC OUT"]
        CZ --> DA["DC OUT"]
        DA --> DB["DC OUT"]
        DB --> DC
    end

    subgraph TH_due
        E["TH due"] --> F["TW1 or SW2"] & G["WMI or WM2"] & H["Midrange"] & I["Tweeter"]

    subgraph TH_uno
        J["TH uno"] & K["WOOFER"] & L["S1"] & M["SW1 or SW2"] & N["SW1 or SW2"] & O["SW1 or SW2"] & P["SW1 or SW2"] & Q["SW1 or SW2"] & R["SW1 or SW2"] & S["SW1 or SW2"] & T["SW1 or SW2"] & U["SW1 or SW2"] & V["SW1 or SW2"] & W["SW1 or SW2"] & X["SW1 or SW2"] & Y["SW1 or SW2"] & Z["SW1 or SW2"] & AA["SW1 or SW2"] & AB["SW1 or SW2"] & AC["SW1 or SW2"] & AD["SW1 or SW2"] & AE["SW1 or SW2"] & AF["SW1 or SW2"] & AG["SW1 or SW2"] & AH["SW1 or SW2"] & AI["SW1 or SW2"] & AJ["SW1 or SW2"] & AK["SW1 or SW2"] & AL["SW1 or SW2"] & AM["SW1 or SW2"] & AN["SW1 or SW2"] & AO["SW1 or SW2"] & AP["SW1 or SW2"] & AQ["SW1 or SW2"] & AR["SW1 or SW2"] & AS["SW1 or SW2"] & AT["SW1 or SW2"] & AU["SW1 or SW2"] & AV["SW1 or SW2"] & AW["SW1 or SW2"] & AX["SW1 or SW2"] & AY["SW1 or SW2"] & AZ["SW1 or SW2"] & BA["SW1 or SW2"] & BB["SW1 or SW2"] & BC["SW1 or SW2"] & BD["SW1 or SW2"] & BE["SW1 or SW2"] & BF["SW1 or SW2"] & BG["SW1 or SW2"] & BH["SW1 or SW2"] & BI["SW1 or SW2"] & BJ["SW1 or SW2"] & BK["SW1 or SW2"] & BL["SW1 or SW2"] & BK_Swier

    J <--> K
    K <--> L
    L <--> M
    M <--> N
    N <--> O
    O <--> P
    P <--> Q
    Q <--> R
    R <--> S
    S <--> T
    T <--> U
    U <--> V
    V <--> W
    W <--> X
    X <--> Y
    Y <--> Z
    Z <--> AA
    AA <--> AB
    AB <--> AC
    AC <--> AD
    AD <--> AE
    AE <--> AF
    AF <--> AG
    AG <--> AH
    AH <--> AI
    AI <--> AJ
    AJ <--> AK
    AK <--> AL
    AL <--> AM
    AM <--> AN
    AN <--> AO
    AO <--> AP
    AP <--> AQ
    AQ <--> AR
    AR <--> AS
    AS <--> AT
    AT <--> AU
    AU <--> AV
    AV <--> AW
    AW <--> AX
    AX <--> AY
    AY <--> AZ
    AZ <--> BA

Classic domain

Example: Three Way + Sub, multi-amplified, with and without TH amplifiers. Analog Input

graph TD
    A["TH quattro"] -->|Front Panel| B["TH trimester"]
    A -->|Front Panel| C["ACNet (Optional use)"]
    A -->|Front Panel| D["Subwoofer"]
    A -->|Front Panel| E["Woofer"]
    A -->|Front Panel| F["Switch 12V"]
    A -->|Front Panel| G["Switch 12V"]
    A -->|Front Panel| H["Switch 12V"]
    A -->|Front Panel| I["Switch 12V"]
    A -->|Front Panel| J["Switch 12V"]
    A -->|Front Panel| K["Switch 12V"]
    A -->|Front Panel| L["Switch 12V"]
    A -->|Front Panel| M["Switch 12V"]
    A -->|Front Panel| N["Switch 12V"]
    A -->|Front Panel| O["Switch 12V"]
    A -->|Front Panel| P["Switch 12V"]
    A -->|Front Panel| Q["Switch 12V"]
    A -->|Front Panel| R["Switch 12V"]
    A -->|Front Panel| S["Switch 12V"]
    A -->|Front Panel| T["Switch 12V"]
    A -->|Front Panel| U["Switch 12V"]
    A -->|Front Panel| V["Switch 12V"]
    A -->|Front Panel| W["Switch 12V"]
    A -->|Front Panel| X["Switch 12V"]
    A -->|Front Panel| Y["Switch 12V"]
    A -->|Front Panel| Z["Switch 12V"]
    A -->|Front Panel| AA["Switch 12V"]
    A -->|Front Panel| AB["Switch 12V"]
    A -->|Front Panel| AC["Switch 12V"]
    A -->|Front Panel| AD["Switch 12V"]
    A -->|Front Panel| AE["Switch 12V"]
    A -->|Front Panel| AF["Switch 12V"]
    A -->|Front Panel| AG["Switch 12V"]
    A -->|Front Panel| AH["Switch 12V"]
    A -->|Front Panel| AI["Switch 12V"]
    A -->|Front Panel| AJ["Switch 12V"]
    A -->|Front Panel| AK["Switch 12V"]
    A -->|Front Panel| AL["Switch 12V"]
    A -->|Front Panel| AM["Switch 12V"]
    A -->|Front Panel| AN["Switch 12V"]
    A -->|Front Panel| AO["Switch 12V"]
    A -->|Front Panel| AP["Switch 12V"]
    A -->|Front Panel| AQ["Switch 12V"]
    A -->|Front Panel| AR["Switch 12V"]
    A -->|Front Panel| AS["Switch 12V"]
    A -->|Front Panel| AT["Switch 12V"]
    A -->|Front Panel| AU["Switch 12V"]
    A -->|Front Panel| AV["Switch 12V"]
    A -->|Front Panel| AW["Switch 12V"]
    A -->|Front Panel| AX["Switch 12V"]
    A -->|Front Panel| AY["Switch 12V"]

THESIS

ASC (AMPLIFIER STATUS CONTROLLER)

The TH amplifiers ASC unit is the operational interface, programmed to control all of the amplifier's functions. The user can interact with the microprocessor which, without interfering with the sound, will provide control for any possible adjustments. This manual section is especially thought for those who want to get the most of these amplifiers exclusive features.

Some functions are automatic and transparent to the user, others require support during the installing, adjusting or modifying phase. By accessing the ASC a set of menus will show, offering specific entries which the user can operate on:

- Setup Amplifier:

Main Input: the user can decide what kind of source the amplifier has to drive;

Amp ID: the user can name the amplifier identifying the function the amplifier performs inside the system;

ID Preout: the user can name the pre-amplified section so it is possible to manage it inside the system;

X-Over Slope: the user can select the Low-bass filter slope (only in Mono mode);

Dual Power: the user can choose the sound quality and the power the amplifier has to work at;

- Status Monitor: the user can monitor the amplifier working status;

- Runtime Monitor: the user can select it on the Display to intermittently have information on the amplifier status shown.

Some of these functions need a remote control communicating with the microprocessor. Inside this manual, where necessary, the presence of the DRC (Digital Remote Control) is underlined. The DRC also adds some specific functions which you can read on their relative section from page 56 on.

INPUTS AND PRE-AMPLIFIER

The TH amplifiers combine an analog and digital section in one device; keeping the two sections on separate PCBs, although mounted within the same sub chassis.

Each amplifier features a state-of-the-art digital encoding section as well as a 24 bit 192 kHz converter. The S/PDIF optical input accepts PCM stereo signals; also, the innovation consists in the fact the TH amplifier can be driven in digital directly and, as a consequence, the whole system too, if a system in multi-amplification configuration with the re-launch of this digital signal to other Thesis TH amplifiers through the AD Link system (Audison Digital Link). Each amplifier independently takes care of the D/A conversion. While in the Digital Input mode the DRC needs to be connected, so it works as an actual general volume and source selector control, capable of repeating all the low frequency controls (Master Volume, Balance, Fader, Sub Volume).

The AD Link connectors on the TH input panel can receive the digital signal from sources or multi-channel processors featuring the afore-mentioned outputs (Audison Bit One) and re-launching the digital signal to the amplifiers chain through a Cat.5 certified shielded cable equipped with an RJ45 connector (provided).

In the following pages of this manual we will explain how to perform the amplifier setup and how to connect it in all THESIS or mixed chains.

ASC - Amplifier Status Controller

Functions Description

TH quattro audison TH quattro (1) Default display 2 3 MENU ENTER DOWN UP 1 4

1 • TH quattro STATUS DISPLAY: it is the visual element of the ASC system, a back-lit two line 32 character LCD display; While working, it can relate all of the configuration parameters memorised by the amplifier during the installation, as well as the operational status of the amplifier. The following pages address all the messages and information which from time to time the display can show. In case of protection intervention, the state of protection is permanently displayed, until the problem is resolved or until the amplifier is reset;
2 • MENU: this switch enables the ASC and shows the first available entry. Each time this switch is pushed while the amplifier is normally working, the ASC displays the first available entry, not the last you worked on. No matter which step of the management you are at, if you push the MENU button, you exit the ASC management and you are automatically taken back to the first display screen (Default display) without saving any changes.
Remark: No matter which step you are at of the management software, if you don't operate on the switches for 5 seconds, the ASC automatically goes back to the first display screen (Default display) without saving any changes.
3 • ENTER: this switch is to:

- confirm the selected entry, - store it in the memory, - move to the following menu entry. The ASC performs these three activities automatically. If you modify the menu entry you are working on and then you push "enter", the display will show:

then the display will show the next entry. The changes will only be made once ENTER is pushed.

4 • UP - DOWN: through these switches the user can browse through the entries available inside the different menus. According to the function you are checking, they allow you to modify your choice which, then, will have to be confirmed by pushing ENTER.

ASC - Amplifier Status Controller

Setup Amplifier: Main Input

The first step to set the amplifier up is to select the main input the TH will use to get the signal. As soon as you turn the amplifier on, the PRE analog input is selected by default. By changing this entry the user can also take advantage of the other operational modes. From next time you turn the TH on, it will use the last selected entry.

If another input is used, the DRC is required. In that case, if for any reasons it is disconnected, all the setup settings and low level controls will reset back to the default settings, unless the DRC is re-connected, in which case they restore. (See page 35)

How to change: Main Input

How to adjust the volume control and input selector using a digital source

In the following pages you will find examples of how to connect the TH to a system driven by sources using the digital input. In order to use the TH IN OPTICAL digital input and therefore its D/A internal converter the DRC Digital Remote Control MUST be connected to the TH amplifier.

The DRC will perform the function of selecting the source by selecting between Analog Input and Optical Input, thus allowing the control of Main Volume, Subwoofer Volume, Balance and Fader.

If the last setup working conditions are no more valid, that is if you disconnect the DRC and you had changed the default conditions, the ASC will automatically go back to use the PRE Analog Input. In this case Fader and Balance will go back to central position, while general Volume and Sub Volume will go back to 0 dB (maximum value). The TH display will show the following information:

DRC not found: defaults loaded

Gray circular icon with an exclamation mark symbol (no text or numbers)

DRC Vol: 00.0dB = TH MAX Power Output

audison Volume: -80.0dB L: -4H TUSCS audison

Warning:

When using the optical digital input you have to use the DRC as main volume control. If the DRC volume control is at 0 dB it equals to the amplifier undistorted maximum output power.

To check all the functions and the DRC connection, see pages 56

Front Panel

How to achieve same output volume level using an analog source (with its own volume control) and a digital source

Once you have adjusted the system, therefore once the amplifiers input sensitivity has been adjusted, you can adjust the digital source volume level so that when selecting the analog or the digital source no difference in sound is perceptible while listening. Once performed this adjustment, we would recommend that you use the DRC volume control as general volume control.

1) On the DRC select the source: Optical Input
2) On the DRC adjust volume until you can read -30.0 dB
3) Insert the Test CD provided with the amplifier into the source connected to the digital input
4) Select track # 05 (sinusoidal signal 1 kHz / 0 dB)
5) Using a multimeter (True RMS) measure the voltage on the speaker terminals
6) On the DRC select the source: Analog Input
7) Do not change the set volume (-30.0 dB)
8) Insert the Test CD provided with the amplifier into the source connected to the digital input
9) Select track # 05 (sinusoidal signal 1 kHz / 0 dB)
10) Adjust the volume of the source connected to the analog input until, using a multimeter (True RMS),
11) you measure the same voltage on the speaker terminals
12) Use the DRC as main volume control

Front Panel

How to connect a source through the optical digital input in a system featuring more than one TH amplifier

TH configured in 4 / 3 / 2 Ch Mode

Input: Digital Optical S/P DIF

Pre Out: Digital AD Link

Power Output: 4 / 3 / 2 Ch

(Repeats the IN OPTICAL signal)

graph TD
    A["TH quattro"] -->|MENU ENTER DOWN UP| B["Main Input Optical Master"]
    B --> C["Setting changed See page 34"]
    C --> D["Main Input Optical Slave"]
    D --> E["AD Link Digital In AC Link In REM In"]
    E --> F["Digital (Optical) Out"]
    F --> G["REM Out"]
    F --> H["audison vol bal fed sub"]
    H --> I["OUTINADRS"]
    I --> J["MODIFIER"]
    J --> K["OUTPUTAL AUDIO CONTROL BUS REM"]
    K --> L["MODIFIER OUT"]
    L --> M["MODIFIER IN"]
    M --> N["MODIFIER OUT"]
    N --> O["MODIFIER IN"]
    O --> P["MODIFIER OUT"]
    P --> Q["MODIFIER IN"]
    Q --> R["MODIFIER OUT"]
    R --> S["MODIFIER IN"]
    S --> T["MODIFIER OUT"]

In this case the DRC is REQUIRED to:
- Adjust the general volume
- Select the optical input
PRE OUT:
anyway available, see page 38

Front Panel

How to connect a source through an optical digital input in a system featuring other non-TH amplifiers

TH configured in 4 / 3 / 2 Ch Mode

Input: Digital Optical S/P DIF

Pre Out: Stereo Analog

Power Output: 4 / 3 / 2 Ch

(R and L Ch of Digital Input)

TH quattro Main Input Optical Master MENU ENTER DOWN UP Setting changed See page 34 PUSH - A LEVELS B 0.2 x 1.2V RMS 1.2 x 4.8V RMS 2Oh (IN A) 3Oh 4Oh IN A IN A IN B Stereo Pre In REM In AMP ID - Precout Front Digital (Optical) Out Rem Out Digital Audio Control Bus REM +15 GND -15 OUT - AD Link - IN IN OPTICAL 1 - AC Link - 2 OUT/AD In order to take advantage of Volume control, Balance, Fader and Sub through the DRC also on the PRE output, the AMP ID - Preout needs to be set to the ASC Setup. In this case the DRC is REQUIRED in order to: - Adjust general volume - Select the optical input PRE OUT: audison vol bal fed sub

see page 44 to check how to manage it

Front Panel

How to connect an analog and a digital source in a system featuring more than one TH amplifier

TH configured in 4 / 3 / 2 Ch Mode

Input: Analog/Digital Optical S/P DIF

Pre Out: Analog/Digital AD Link

Power Output: 4 / 3 / 2 Ch

graph TD
    A["TH quattro"] -->|MENU ENTER DOWN UP| B["Main Input Optical Master"]
    B --> C["Setting changed See page 34"]
    C --> D["Main Input Optical Slave"]
    D --> E["AD Link Digital In Stereo Pre In AC Link In REM In OUTINKADIRE"]
    E --> F["Digital Audio/UX Control Bus Rem"]
    F --> G["Digital (Optical) Out"]
    G --> H["Front Pre Out"]
    H --> I["Rear Pre Out (Optional)"]
    I --> J["Digital (Optical) Out"]
    J --> K["REM Out"]
    K --> L["audison vol bal fad sub"]
    L --> M["audison vol bal fad sub"]

In this case the DRC is REQUIRED to:
- Adjust general volume
- Select the optical input
PRE OUT:
anyway available, see page 40

Front Panel

How to connect an analog and a digital source in a system featuring other non-TH amplifiers

TH configured in 4 / 3 / 2 Ch Mode

Input: Analog/Digital Optical S/P DIF

Pre Out: Stereo Analog

Power Output: 4 / 3 / 2 Ch

TH quattro Main Input Optical Master MENU ENTER DOWN UP Setting changed See page 34 PUSH - A LEVELS B IN: 0.3 = 1.2V RMS L: 1.2 = 6.8V RMS 2Ch (IN A) 3Ch 4Ch IN A IN A IN B

Rear Pre Out (Optional) Front Pre Out REEM In AMP ID - Prcout Front Digital (Optical) Out Rem Out I. A IN OUT A DIGITAL AUDIO/DC-OUT-COM CONTROL BUS REM +15 GND -15 IN OPTICAL OUT - AD Link - IN 1 - AC Link - 2 OUTING In order to take advantage of Volume control, Balance, Fader and Sub through the DRC also on the PRE output, the AMP ID - Prcout needs to be set to the ASC Setup. In this case the DRC is REQUIRED in order to: - Adjust general volume - Select the analog or digital optical input PRE OUT: audison audison vol bal fed sub

In this case the DRC is REQUIRED in order to:
- Adjust general volume
- Select the analog or digital optical input PRE OUT:
see page 44 to check how to manage it

ASC - Amplifier Status Controller

Setup Amplifier: Amp ID on 4 Ch Mode

AMP ID stands for Amplifier IDentification. The AMP ID is a way to identify the task the amplifier performs inside the system. The AMP ID does not affect the electric functioning and does not act on the amplifier electronic crossover. The AMP ID is fundamental to adjust Volume, Balance, Fader as well as Sub Volume when the DRC is connected. The ASC recognises the function the amplifier has been given through the ID. By acting on the DRC and adjusting Volume, Balance, Fader as well as Sub Volume, as a consequence also the signal to the amplifiers will be managed.

Example:

If the AMP ID-Front is assigned to the TH amplifier, by operating on the DRC its general volume, as well as the right/left balance, will change. Also, by setting the Fader on Rear you will hear the volume diminishing; however, no change will be perceived if you operate on the DRC Sub volume.

Vice versa, if the AMP ID – Subwoofer is assigned to the TH amplifier, by operating on the DRC its general volume, more specifically the Sub volume, will change; however, no change will be perceived if you operate on the right/left balance or moving the Fader.

In order to avoid errors, you should assign the ID according to the speakers connected to the amplifier.

graph TD
    A["TH quattro"] --> B["Setup Amplifier"]
    B --> C["PRESS ENTER TO REACH"]
    C --> D["AMP ID - A ch Front"]
    D --> E["AMP ID - B ch Front"]
    D --> F["AMP ID - A ch Front TW"]
    D --> G["AMP ID - A ch Front MT"]
    D --> H["AMP ID - A ch Front MR"]
    D --> I["AMP ID - A ch Front WF"]
    D --> J["AMP ID - A ch Rear"]
    D --> K["AMP ID - A ch Rear TW"]
    D --> L["AMP ID - A ch Rear WF"]
    D --> M["Press ENTER to exit"]
    C --> N["DOWN UP"]
    N --> O["Status Monitor"]
    O --> P["DOWN UP"]
    P --> Q["Runtime Monitor"]
    Q --> R["DOWN UP"]
    R --> S["Press ENTER to exit"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#ffc,stroke:#333
    style H fill:#ffc,stroke:#333
    style I fill:#ffc,stroke:#333
    style J fill:#ffc,stroke:#333
    style K fill:#ffc,stroke:#333
    style L fill:#ffc,stroke:#333
    style M fill:#ffc,stroke:#333

* Default Entries

ASC - Amplifier Status Controller

Setup Amplifier: Amp ID on 3 Ch Mode

graph TD
    A["MENU"] --> B["Setup Amplifier"]
    B --> C["PRESS ENTER TO REACH"]
    C --> D["AMP ID - A ch Front"]
    D --> E["AMP ID - B ch Front Left"]
    D --> F["AMP ID - B ch Front Right"]
    D --> G["AMP ID - B ch Front TW Left"]
    D --> H["AMP ID - B ch Front TW Right"]
    D --> I["AMP ID - B ch Front MT Left"]
    D --> J["AMP ID - B ch Front MT Right"]
    D --> K["AMP ID - B ch Front MR Left"]
    D --> L["AMP ID - B ch Front MR Right"]
    D --> M["AMP ID - B ch Front WF Left"]
    D --> N["Press ENTER to exit"]
    C --> O["DOWN UP"]
    O --> P["Status Monitor"]
    P --> Q["DOWN UP"]
    Q --> R["Runtime Monitor"]
    R --> S["DOWN UP"]
    S --> T["Press ENTER to exit"]

    U["* Default Entries"] --> V["B channel - MonoA channel - Stereo"]
    V --> W["PRESS ENTER TO CONFIRM YOUR *SELECTION AND MOVE TO THE NEXT SETUP"]

    V --> X["UP UP"]

    Y["PUSH - A LEVELS B 0.3 + 1.2V RMS 1.2 + 4.8V RMS"] --> Z["2Ch (IN A) 3Ch 4Ch IN A IN B"]
    Z --> AA["IN A IN B"]

ASC - Amplifier Status Controller

Setup Amplifier: Amp ID on 2 Ch Mode

In this configuration the TH quattro is like a Stereo amplifier. You can assign the AMP ID as a Stereo model.

graph TD
    A["TH quattro"] --> B["audison TH quattro (1)"]
    B --> C["MENU"]
    C --> D["Setup Amplifier"]
    D --> E["PRESS ENTER TO REACH"]
    E --> F["A channel"]
    F --> G["AMP ID - A ch Front"]
    F --> H["AMP ID - A ch Front TW"]
    F --> I["AMP ID - A ch Front MT"]
    F --> J["AMP ID - A ch Front MR"]
    F --> K["AMP ID - A ch Front WF"]
    F --> L["AMP ID - A ch Rear"]
    F --> M["AMP ID - A ch Rear TW"]
    F --> N["AMP ID - A ch Rear WF"]
    F --> O["Press ENTER to exit"]
    D --> P["DOWN UP"]
    P --> Q["Status Monitor"]
    Q --> R["Down UP"]
    R --> S["Runtime Monitor"]
    S --> T["Down UP"]
    T --> U["Press ENTER to exit"]
    F --> V["* ENTER PRESS ENTER TO CONFIRM YOUR SELECTION AND MOVE TO THE NEXT SETUP"]

* Default Entries

ASC - Amplifier Status Controller

The AMP ID can also be assigned to the PRE OUT output. This function is extremely useful in case the TH amplifier is added to a pre-existing system featuring not only TH amplifiers or if you want to add to the TH system a non-TH amplifier. This way you can anyway know the non-TH amplifier function as well as adjust its volume. The AMP ID - Preout provides the ability to expand the system endlessly, keeping the low level parameters management functions through the DRC.

!

As the AMP ID – Preout does not operate on the electronic crossover, it does not put in any filters on the output signal! The signal on the PRE OUT output will always be exactly the same as the one on the selected input. In any case, 4 / 3 / 2 Ch Mode, the Amp ID-Preout will be able to drive a Stereo system.

graph TD
    A["TH quattro"] --> B["Setup Amplifier"]
    B --> C["Press ENTER TO REACH"]
    C --> D["AMP ID - Preout Front"]
    D --> E["ENTER *"]
    E --> F["PRESS ENTER TO CONFIRM YOUR SELECTION AND MOVE TO THE NEXT SETUP"]
    G["TH quattro (1)"] --> H["MENU"]
    H --> I["DOWN UP"]
    I --> J["Status Monitor"]
    J --> K["DOWN UP"]
    K --> L["Runtime Monitor"]
    L --> M["DOWN UP"]
    M --> N["Press ENTER to exit"]
    D --> O["Down UP"]
    O --> P["Amp ID - Preout Front TW"]
    P --> Q["Amp ID - Preout Front MT"]
    Q --> R["Amp ID - Preout Front MR"]
    R --> S["Amp ID - Preout Front UF"]
    S --> T["Amp ID - Preout Rear"]
    T --> U["Amp ID - Preout Rear TW"]
    U --> V["Amp ID - Preout Rear UF"]
    V --> W["Amp ID - Preout Center"]
    W --> X["Amp ID - Preout Subwoofer"]
    X --> Y["Amp ID - Preout TH Amp"]
    Y --> Z["Amp ENTER to exit"]

Front Panel

How to adjust the PRE OUT analog output

As already said, the AMP ID can also be assigned to the PRE OUT output, but not only to it. Through the AC Net software also the PRE OUT sensitivity can be adjusted to align the gain of the amplifier connected to that output, thus adapting sensitivity according to the system general volume increase and decrease.

The procedure to perform this operation is the following:

1- Connect the (non-TH) amplifier to the PRE output.
2- Assign the ID - Preout.
3- Set the non-TH amplifier sensitivity to the minimum.
4- Through the AC Net slider, increase the output sensitivity until you get the desired volume.
5- Should it not be enough, increase the non-TH amplifier input sensitivity

graph TD
    A["TH quattro"] --> B["TH quattro (1)"]
    B --> C["TH quattro Setup Amplifier"]
    C --> D["TH quattro Amp ID - Freout Front"]
    D --> E["TH quattro Amp ID - Freout Rear"]
    E --> F["TH quattro UP TO PRESS PRESS"]
    F --> G["UP TO"]
    G --> H["MIN"]
    H --> I["TV/HV venti/"]

    subgraph PressPressUP
        B -->|MENI ENTER| B
        B -->|DOWN UP| B
    end

    subgraph PressPressUP
        C -->|MENI ENTER| C
        C -->|DOWN UP| C
    end

    subgraph UPTO
        D -->|MENI ENTER| D
        D -->|DOWN UP| D
    end

    subgraph DigitalBusControl
        I --> J["Digital Audio Control Bus Rem"]
        J --> K["HV Vent/ HV vent/"]
        K --> L["13.000 15"]
        L --> M["OUT - AC/HA - 2 OUT/RES"]
        M --> N["1 - AC/HA - 2 OUT/RES"]
        N --> O["13.000 15"]
        O --> P["OUT - AC/HA - 2 OUT/RES"]
        P --> Q["13.000 15"]
        Q --> R["OUT - AC/HA - 2 OUT/RES"]
        R --> S["13.000 15"]
        S --> T["OUT - AC/HA - 2 OUT/RES"]
        T --> U["13.000 15"]
        U --> V["OUT - AC/HA - 2 OUT/RES"]
        V --> W["13.000 15"]
        W --> X["OUT - AC/HA - 2 OUT/RES"]
        X --> Y["13.000 15"]
        Y --> Z["OUT - AC/HA - 2 OUT/RES"]
        Z --> AA["13.000 15"]
        AA --> AB["OUT - AC/HA - 2 OUT/RES"]
        AB --> AC["13.000 15"]
        AC --> AD["OUT - AC/HA - 2 OUT/RES"]
        AD --> AE["13.000 15"]
        AE --> AF["OUT - AC/HA - 2 OUT/RES"]
        AF --> AG["13.000 15"]
        AG --> AH["OUT - AC/HA - 2 OUT/RES"]
        AH --> AI["13.000 15"]
        AI --> AJ["OUT - AC/HA - 2 OUT/RES"]
        AJ --> AK["13.000 15"]
        AK --> AL["OUT - AC/HA - 2 OUT/RES"]
        AL --> AM["13.000 15"]
        AM --> AN["OUT - AC/HA - 2 OUT/RES"]
        AN --> AO["13.000 15"]
        AO --> AP["OUT - AC/HA - 2 OUT/RES"]
        AP --> AQ["13.000 15"]
        AQ --> AR["OUT - AC/HA - 2 OUT/RES"]
        AR --> AS["13.000 15"]
        AS --> AT["OUT - AC/HA - 2 OUT/RES"]
        AT --> AU["13.000 15"]
        AU --> AV["OUT - AC/HA - 2 OUT/RES"]
        AV --> AW["13.000 15"]
        AW --> AX["OUT - AC/HA - 2 OUT/RES"]
        AX --> AY["13.000 15"]
        AY --> AZ["OUT - AC/HA - 2 OUT/RES"]
        AZ --> BA["13.000 15"]
        BA --> BB["OUT - AC/HA - 2 OUT/RES"]
        BB --> BC["13.000 15"]
        BC --> BD["OUT - AC/HA - 2 OUT/RES"]
        BD --> BE["13.000 15"]
        BE --> BF["OUT - AC/HA - 2 OUT/RES"]
        BF --> BG["13.000 15"]
        BG --> BH["OUT - AC/HA - 2 OUT/RES"]
        BH --> BI["13.000 15"]
        BI --> BJ["OUT - AC/HA - 2 OUT/RES"]
        BJ --> BK["13.000 15"]
        BK --> BL["OUT - AC/HA - 2 OUT/RES"]
        BL --> BM["13.000 15"]
        BM --> BN["OUT - AC/HA - 2 OUT/RES"]
        BN --> BO["13.000 15"]
        BO --> BP["OUT - AC/HA - 2 OUT/RES"]
        BP --> BQ["13.000 15"]
        BQ --> BR["OUT - AC/HA - 2 OUT/RES"]
        BR --> BS["13.000 15"]
        BS --> BT["OUT - AC/HA - 2 OUT/RES"]
        BT --> BU["13.000 15"]
        BU --> BV["OUT - AC/HA - 2 OUT/RES"]
        BV --> BW["13.000 15"]
        BW --> BX["OUT - AC/HA - 2 OUT/RES"]
        BX --> BY["13.000 15"]
        BY --> BZ["OUT - AC/HA - 2 OUT/RES"]
        BZ --> CA["13.000 15"]
        CA --> CB["OUT - AC/HA - 2 OUT/RES"]
        CB --> CC["13.000 15"]
        CC --> CD["OUT - AC/HA - 2 OUT/RES"]
        CD --> CE["13.000 15"]
        CE --> CF["OUT - AC/HA - 2 OUT/RES"]
        CF --> CG["13.000 15"]
        CG --> CH["OUT - AC/HA - 2 OUT/RES"]
        CH --> CI["13.000 15"]
        CI --> CJ["OUT - AC/HA - 2 OUT/RES"]
        CJ --> CK["13.000 15"]

Sensitivity and Preout Level Music Link: Low(4.80V - 1.19V) V Clip A Left □ 1.13 □ A Right □ 1.19 □ B Left □ 2.52 □ B Right □ 2.52 □ Prcout Left □ 1.27 Prcu Right □ 1.27

ASC - Amplifier Status Controller

Setup Amplifier : X-Over Slope of bridged channels (B) with TH quattro in 3 Ch mode

When the amplifier is set in 3 Ch Mode, you can choose the crossover filter slope of the B (bridged) channels.

Select 1-12 dB/oct: in this case, the Low-pass slope switch on the TH-MXR module will not be active.

Select 2-24 dB/oct: when this option is selected, the Low-pass slope switch on the TH-MXR module will anyway be active, thus providing the ability to mechanically choosing between 12 and 24 dB/oct.

For further information see page 23 ÷ 27

graph TD
    A["TH quattro"] --> B["audison TH quattro (1)"]
    B --> C["MENU"]
    C --> D["Setup Amplifier"]
    D --> E["ENTER"]
    E --> F["PRESS ENTER TO REACH"]
    F --> G["X-Over Slope B 12 dB/oct"]
    F --> H["X-Over Slope B 24 dB/oct"]
    F --> I["Press ENTER to exit"]
    G --> J["* Default Value"]
    H --> J
    I --> J
    J --> K["PRESS ENTER TO CONFIRM YOUR SELECTION AND MOVE TO THE NEXT SETUP"]

TH quattro in 2 Ch mode

When the amplifier is set in 2 Ch Mode, crossover filter slope is always 12 dB/oct.

ASC - Amplifier Status Controller DUAL POWER & BIAS CONTROL

A revolutionary function called Dual Power was introduced for the first time in the HV venti.

Controlling the amplifier's output power configuration, this function allowed the predetermination of the amplifiers output power and of the grade of the outputs operational class. The digital interface enables expedient intervention by the user, setting up the amplifier's operational modes by operating on the power and bias current settings, all in real-time. In any case the result is a clear "sound customisation".

In this Setup section you can set the amplifier operational mode.

There are four possible presets:

Class A: to intensify the musical performance; you can not expect the amplifier to drive loads under 4 Ω under these conditions;

Hi-AB Class: it is the default mode, combining the characteristics of high class functioning, great capability of driving difficult loads and high power.

Hi-Current: Pure power, on any loads

Energy Saving: it sets the power emission to the minimum, allowing musical enjoyment for extended periods of time with the vehicles engine off.

When changing mode, you have to wait a few seconds to perceive the acoustic variations. The Dual Power is absolutely independent from the other settings selections. It will work both in Mono and in Stereo configurations, both with and without the crossover, both connecting a subwoofer and a tweeter to it. So we recommend you pay attention to select a functioning mode accepting the impedance load you applied to the amplifier. Check the following page for comparative charts with reference values.

Setup Amplifier: DUAL POWER Settings

graph TD
    A["TH quattro"] --> B["TH quattro (1)"]
    B --> C["MENU"]
    C --> D["Setup Amplifier"]
    D --> E["ENTER"]
    E --> F["PRESS ENTER TO REACH"]
    F --> G["ENTER"]
    G --> H["DualPUR MemX-Ach Hi-AB Class"]
    G --> I["DualPUR MemX-Ach Hi-Current"]
    G --> J["DualPUR MemX-Ach A Class"]
    G --> K["DualPUR MemX-Ach Energy Saving"]
    G --> L["Press ENTER to exit"]
    H --> M["*"]
    I --> M
    J --> M
    K --> M
    L --> M
    M --> N["DUALPUR MemX-Bch Hi-AB Class"]
    M --> O["DUALPUR MemX-Bch Hi-Current"]
    M --> P["DUALPUR MemX-Bch A Class"]
    M --> Q["DUALPUR MemX-Bch Energy Saving"]
    M --> R["Press ENTER to exit"]
    N --> S["B channelA channel"]
    O --> S
    P --> S
    Q --> S
    R --> S
    S --> T["ENTER TO EXIT"]
    T --> U["PRESS ENTER TO CONFIRM YOUR SELECTION AND MOVE TO THE NEXT SETUP"]
    V[" press ENTER to exit "]
    W[" default Value "]
    X["When changing mode, you need to wait a few seconds to perceive the acoustic changes. "]

ASC - Amplifier Status Controller

DUAL POWER Values

ASC - Amplifier Status Controller

Setup Amplifier: DUAL POWER Settings

How to change presets on the Memory (DRC required)

The TH quattro can be set with an operational mode for A Channels and an operational mode for B Channels. Using A Class or Energy Saving mode, these configurations will be automatically set on both channels. See the following chart:

	1	2	3	4	5	6
Channels A	H-AB Class	Hi-Current	Hi-AB Class	Hi-Current	A Class	En.Saving
Channels B	H-AB Class	Hi-Current	Hi-Current	Hi-AB Class	A Class	En.Saving

The DRC can manage four customisable memories.

1- Default: In standard configuration, without making any changes, if memory 1 is recalled from the DRC, all the TH amplifiers connected to the system will be working in Hi-AB Class mode (as it is the default setting), while selecting memory 2 they will be workin in Hi-Current mode and so on.
2- Customizing: by acting on both the DRC memories and the ASC control panel of the amplifier, you can create custom setups. For instance, if you want the TH amplifiers to anyway work in A-Class mode, you will have to act on the setup as follows:

- Select memory 1 on the DRC by pressing first SEL and then 1

• Select the A-Class preset on the ASC by accessing to its corresponding setup
• Repeat this operation for each DRC memory
• Repeat this operation for each TH present in the system

audison audison vol bal fad sub CRC SEL PRESS PRESS

audison Dual PWR Memory X 1 2 3 4 CRC SEL

TH quattro audison TH quattro (1) PRESS PRESS TH quattro Setup Amplifier UP TOPRESS TH quattro DualPUR Memory X Hi NB Class PRESS TH quattro DualPUR Memory X A Class

Example: In a three-way + Sub system, multi-amplified with TH quattro on TW and MID, TH due on WF and TH uno on SUB, in default setting if you recall memory 1 all of the TH's would work in Hi-AB Class mode. It is possible to create custom memories, see for instance the example below, to store in memory 1 a system especially designed to ensure top quality for each way or to store in memory 2 a system especially designed for the best power/quality ratio, to store in memory 3 a system set to obtain maximum quality and in memory 4 a system best optimizing the current consumption.

Default configuration → Modified configuration

DRC Memory 1 2 3 TH quattro Hi-AB Class Hi-Current A Class Energy Saving Hi-AB Class Hi-Current A Class Energy Saving TH due Hi-AB Class Hi-Current A Class Energy Saving TH uno Hi-AB Class Hi-Current A Class Energy Saving

4	1	2	3
	A Class Hi-AB Class A Class Energy SavingA Class Hi-Current A Class Energy Saving
	Hi-AB Class Hi-Current A Class Energy Saving
	Hi-Current Hi-Current A Class Energy Saving

4

Example: Three Way+ multi-amplified Sub, TH amplifiers Digital Input

REM Out Source Digital (Optical) Out TH quattro DRC (Necessary) Function: Master Volume TH due TH uno ACNet (Optional use) USB / AC Link Converter TH quattro Anp ID - 0 ch Front. IT Anp ID - 3 ch Front. IR TH due SW1 or SW2 WM1 or WM2 Midrange Tweeter Woofer Subwoofer Front Panel Rear Panel SS1 SW1 or SW2 Front Panel Rear Panel TH uno audison Th uno (3) fmr. ID - 0 ch subwoofer

Example: Three Way + multi-amplified Sub, TH amplifiers Analog + Digital Input

graph TD
    A["Analog Source"] --> B["Pre Out"]
    B --> C["REM Out"]
    C --> D["Digital (Optical) Out"]
    D --> E["TH quattro"]
    E --> F["Front Panel"]
    F --> G["Rear Panel"]
    G --> H["Midrange"]
    H --> I["Tweeter"]
    I --> J["Woofer"]
    J --> K["Subwoofer"]
    K --> L["ACNet (Optional use)"]
    L --> M["USB / AC Link Converter"]
    M --> N["TH uno"]
    N --> O["Front Panel"]
    O --> P["Rear Panel"]
    P --> Q["SS1 SW1 or SW2"]
    Q --> R["Front Panel"]
    R --> S["Rear Panel"]
    S --> T["TH uno"]
    T --> U["Front Panel"]
    U --> V["Rear Panel"]
    V --> W["SW1 or SW2 WM1 or WM2"]
    W --> X["Front Panel"]
    X --> Y["Rear Panel"]
    Y --> Z["TH due"]
    Z --> AA["Front Panel"]
    AA --> AB["Rear Panel"]
    AB --> AC["SW1 or SW2 WM1 or WM2"]
    AC --> AD["Front Panel"]
    AD --> AE["Rear Panel"]
    AE --> AF["TH due"]
    AF --> AG["Front Panel"]
    AG --> AH["Rear Panel"]
    AH --> AI["SW1 or SW2 WM1 or SW2"]
    AI --> AJ["Front Panel"]
    AJ --> AK["Rear Panel"]

Example: Three Way + Sub, multiamplified with and without TH amplifiers. Analog + Digital Input

graph TD
    A["TH quattro"] -->|Pre Out| B["TH venti"]
    A -->|Front| C["TH quattro (1)"]
    A -->|Rem Out| D["TH quattro (2)"]
    A -->|Rem In| E["Tweeter Midrange"]
    A -->|Rear (Optional)| F["ACNet (Optional use)"]
    A -->|Digital (Optical) Out| G["Digital Source"]
    A -->|Front Panel| H["ACNet (Optional use)"]
    A -->|Rear Panel| I["ACNet (Optional use)"]
    A -->|Rem In| J["Woofer Subwoofer"]
    A -->|Rem Out| K["Power Line 12V"]
    A --> L["Power Line 12V"]
    A --> M["Power Line 12V"]
    A --> N["Power Line 12V"]
    A --> O["Power Line 12V"]
    A --> P["Power Line 12V"]
    A --> Q["Power Line 12V"]
    A --> R["Power Line 12V"]
    A --> S["Power Line 12V"]
    A --> T["Power Line 12V"]
    A --> U["Power Line 12V"]
    A --> V["Power Line 12V"]
    A --> W["Power Line 12V"]
    A --> X["Power Line 12V"]
    A --> Y["Power Line 12V"]
    A --> Z["Power Line 12V"]
    A --> AA["Power Line 12V"]
    A --> AB["Power Line 12V"]
    A --> AC["Power Line 12V"]
    A --> AD["Power Line 12V"]
    A --> AE["Power Line 12V"]
    A --> AF["Power Line 12V"]
    A --> AG["Power Line 12V"]
    A --> AH["Power Line 12V"]
    A --> AI["Power Line 12V"]
    A --> AJ["Power Line 12V"]
    A --> AK["Power Line 12V"]
    A --> AL["Power Line 12V"]
    A --> AM["Power Line 12V"]
    A --> AN["Power Line 12V"]
    A --> AO["Power Line 12V"]
    A --> AP["Power Line 12V"]
    A --> AQ["Power Line 12V"]
    A --> AR["Power Line 12V"]
    A --> AS["Power Line 12V"]
    A --> AT["Power Line 12V"]
    A --> AU["Power Line 12V"]
    A --> AV["Power Line 12V"]
    A --> AW["Power Line 12V"]
    A --> AX["Power Line 12V"]
    A --> AY["Power Line 12V"]
    A --> AZ["Power Line 12V"]

ASC - Amplifier Status Controller Status Monitor

This feature of the ASC provides the ability to monitor the amplifier working status by moving through the different entries the data regarding the working TH amplifier will show. When displaying a value, if you do not act on any of the buttons for 5 seconds, the ASC automatically goes back to the default display screen.

graph TD
    A["MENU"] --> B["Setup Amplifier"]
    B --> C["DOWN UP"]
    C --> D["Status Monitor"]
    D --> E["DOWN UP"]
    E --> F["Runtime Monitor"]
    F --> G["DOWN UP"]
    G --> H["Press ENTER to exit"]

    D --> I["ENTER"]
    I --> J["Supply Voltage 12.6V"]
    J --> K["Temperature 34°C"]
    K --> L["A: Hi-AB Class B: Hi-AB Class"]
    L --> M["A: Front B: Rear"]
    M --> N["AMP ID - Preout Front"]
    N --> O["Customer Name xxxxxxxxxxxxxx"]
    O --> P["Installer Name xxxxxxxxxxxxxx"]
    P --> Q["A Sens: Lo 4.80V B Sens: Lo 4.80V"]
    Q --> R["Sens, Preout Lo 1.19V"]
    R --> S["Current Input Optical"]
    S --> T["X-Over A: No X-Over B: 12dB"]
    T --> U["Amplifier Confis 4 channels"]
    U --> V["ADRS Position 0"]
    V --> W["Serial Number xxxxxxxx"]
    W --> X["Firmware Version 1.00"]

    J --> Y["ENTER TO EXIT"]
    Y --> Z["Displays the voltage measured on the amplifier power supply terminals."]
    Y --> AA["Displays the working temperature measured on the heat sink internal surface"]
    Y --> AB["Displays the amplifier A and B channels Mode (the selected Dual Power preset)"]
    Y --> AC["Displays the amplifier A and B channels function inside the system, identified by its own ID."]
    Y --> AD["Displays the amplifier PRE output function inside the system, identified by its specific ID."]
    Y --> AE["These functions are only customisable if the PC is connected through the ACNet software. These entries are displayed on the Status Monitor only if customized."]
    Y --> AF["Displays the A and B channels input sensitivity range and value measured in volts, both being adjusted by the relative potentiometer on the INPUT PANEL or by the ACNet software"]
    Y --> AG["Displays the PRE output sensitivity range and value measured in volts, both being adjusted exclusively by the ACNet software."]
    Y --> AH["Displays the main input type selected on the amplifier."]
    Y --> AI["Displays the A and B channels filter slope pre-set during the amplifier Setup."]
    Y --> AJ["Indicates whether the amplifier is set to work in 4/3/2 channels."]
    Y --> AK["Displays the value of the amplifier digital address selected in the ADRS specific selector located on the FRONT PANEL."]
    Y --> AL["Displays the amplifier serial number. The user can not modify this field in any way."]
    Y --> AM["Displays the version of the installed ASC software."]

ASC - Amplifier Status Controller

Runtime Monitor

This function of the ASC provides the ability to alternately show on the amplifier display the information on its operational status. Through this setup you can select the fields you want to be visible when the amplifier is on. For each field you can select YES to have the entry show on the display. If all NO are selected, the display will always show the default display screen. You will only have to select even just one entry to see it appear alternately on the display while the amplifier is working. By default all the fields are pre-set on NO.

graph TD
    A["MENU"] --> B["Setup Amplifier"]
    B --> C["DOWN UP"]
    C --> D["Status Monitor"]
    D --> E["DOWN UP"]
    E --> F["Runtime Monitor"]
    F --> G["DOWN UP"]
    G --> H["Press ENTER to exit"]

    I["ENTER"] --> J["Supply Voltage No"]
    I --> K["Temperature No"]
    I --> L["DualPUR Memory No"]
    I --> M["Amp ID No"]
    I --> N["Customer Name No"]
    I --> O["Installer Name No"]
    I --> P["Sensitivity No"]
    I --> Q["Current Input No"]
    I --> R["X-Over No"]
    I --> S["Ampifier Confis No"]
    I --> T["ADRS Position No"]
    I --> U["Serial Number No"]
    I --> V["Firmware Version No"]
    I --> W["Press ENTER to exit"]

    X["ENTER"] --> Y["Supply Voltage Yes"]
    X --> Z["Temperature Yes"]
    X --> AA["DualPUR Memory Yes"]
    X --> AB["Amp ID Yes"]
    X --> AC["Customer Name Yes"]
    X --> AD["Installer Name Yes"]
    X --> AE["Sensitivity Yes"]
    X --> AF["Current Input Yes"]
    X --> AG["X-Over Yes"]
    X --> AH["Ampifier Confis Yes"]
    X --> AI["ADRS Position Yes"]
    X --> AJ["Serial Number Yes"]
    X --> AK["Firmware Version Yes"]
    X --> AL["Press ENTER to exit"]

    M --> J
    N --> K
    O --> L
    P --> M
    Q --> N
    R --> O
    S --> P
    T --> Q
    U --> S
    V --> T
    W --> U
    X --> Y
    Y --> Z
    Z --> AA
    AA --> AB
    AB --> AC
    AC --> AD
    AD --> AE

ASC - Amplifier Status Controller

Info and Alert sentences

What the TH is doing

1 Amp in default

What the display is showing

What it means

DRC not found: defaults loaded

The previously found connection with DRC has been lost. This information is also displayed when the amplifier is on and the DRC gets disconnected. Volume goes back to 0 dB (the set sensitivity is not modified), Balance and Fader are set back to their centre position (0). The Sub volume is set back to 0 dB. The ANALOG input is automatically selected.

2 Amp in muting

Set 4ch or setup amplifier

Set 3ch or setup amplifier

Set 2ch or setup amplifier

4/3/2 Ch switch position is different from the original position acquired during the Amplifier Setup. You have to access to the ASC and at least set the AMP ID.

3 Amp off

Protection Service A-L

Protection Service A-R

Left or right A channel general protection. The amplifier will try to restart 5 times. Contact Audison Technical Support.

4 Amp off

Protection Service B-L

Protection Service B-R

Left or right B channel general protection. The amplifier will try to restart 5 times. Contact Audison Technical Support.

5 Autoreset

Protection Overload A-L

Protection Overload A-R

Left or right A channel overload protection. Check speaker load. This message is displayed when an overload occurs.

6 Autoreset

Protection Overload B-L

Protection Overload B-R

Left or right B channel overload protection. Check speaker load. This message is displayed when an overload occurs.

7 Event's alert

Prot. Memory Overload A-L

Prot. Memory Overload A-R

Rare overload occurs on left or right A channel. Check speaker load. This message is displayed when an overload has already occurred but the amplifier restarted.

8 Event's alert

Prot. Memory Overload B-L

Prot. Memory Overload B-R

Rare overload occurs on left or right B channel. Check speaker load. This message is displayed when an load has already occurred but the amplifier restarted.

9 Event's alert

WARNING CLIP A-L

WARNING Clip A-R

* threshold. The information is immediate and stays displayed only while distortion is still present.

10 Event's alert

Warning Clip B-L

Warning Clip B-R

Left or right B channel output is reaching distortion threshold. The information is immediate and stays displayed only while distortion is still present.

11 Autoreset

Protection Ov. Temperature

Thermal protection. Check environmental temperature and/or use a low bias Dual Power setting.

12 Event's alert

Prot. Memory Ov. Temperature

Rare thermal protection occurs. Check environmental temperature and/or use a low bias Dual Power setting.

13 Autoreset

Protection Check Speakers

Contact with ground. Stop listening and check speaker cables.

14 Event's alert

Prot. Memory Check Speakers

Rare contact with ground occurs. Stop listening and check speaker cables.

* These messages appear also on the DRC display. The DRC will display amplifier name and ADRS on the first row.

DRC - Digital Remote Control

(not provided with TH amplifier)

The DRC is a microprocessor digital system providing remote control and monitoring of the TH amplifiers. Once connected it performs important functions such as:

• Source selection (it also provides the ability to use the optical digital input as main source, checking its main volume)
• Main volume control
• Subwoofer volume control
• Right/ left balance control
• Front/rear Fader control
• Dual Power working memory Manager
• Status Monitor for all the amplifiers in the system

graph TD
    A["TURN"] --> B["audison vol bal fad sub"]
    B --> C["Default display"]
    C --> D["Volume control"]
    D --> E["Default Function"]
    E --> F["Main screen"]
    F --> G["Input Select Analos"]
    G --> H["Select the Input."]
    H --> I["Input Select Optical *"]
    I --> J["DualPUR Memory X 1 2 3 4"]
    J --> K["TH sustro (0) -Part -Part+"]
    K --> L["Main screen"]

    M["TURN"] --> N["SYNC SRC SEL ○"]
    N --> O["PRESS 1 2 3 4"]

    P["RECALS Dual Power Memory"] --> Q["○1: Dual Power Memory 1"]
    P --> R["○2: Dual Power Memory 2"]
    P --> S["○3: Dual Power Memory 3"]
    P --> T["○4: Dual Power Memory 4"]

    U["START"] --> V["○1: Amplifier Status Monitor PREVIOUS PARAMETER"]
    U --> W["○2: Amplifier Status Monitor NEXT PARAMETER"]
    U --> X["If are connected more than one TH, selects and shows, as a sequence the different amplifier, identified by the ADRS"]
    U --> Y["○3: Amplifier Status Monitor PREVIOUS AMPLIFIER"]
    U --> Z["○4: Amplifier Status Monitor NEXT AMPLIFIER"]

    style A fill:#f9f,stroke:#333
    style D fill:#ccf,stroke:#333
    style E fill:#cfc,stroke:#333

DRC - Digital Remote Control

Info and Alert sentences

audison audison vol bal fad sub SRC SEL ○

TH AMPLIFIER MODEL AMPLIFIER ADDRESS (ADRS) TH_quattro (0) Service A-L PROTECTION TYPE

Amp off

Left or right A channel general protection. Call Audison Technical Support.

Amp off

Left or right B channel general protection. Call Audison Technical Support.

Autoreset

Left or right A channel overload protection. Check speaker load.

Autoreset

Left or right B channel overload protection. Check speaker load.

Event's alert

Left or right A channel output is reaching distortion threshold.

Event's alert

Left or right B channel output is reaching distortion threshold.

Autoreset

TH quattro (8) Ov. Temperature

Thermal protection. Check environmental temperature and/or use a low bias AMC setting.

Autoreset

Rare contact with ground occurs. Stop listening and check speaker cables.

Event's alert

PC control DRC is disabled

The PC is connected and ACNet software is running. The DRC is disabled.

DRC - Digital Remote Control

DRC - How to connect

S - How to connect Digital AUDIO-OUT CONTROL BUS REM +15 GND -15 OUT - AD Link - IN IN OPTICAL 1 - AC Link - 2 OUTINADRE DRC/AC Link cable (provided)

DRC - How to install

Technical diagram of a mechanical assembly with labeled components and red dashed lines indicating alignment or measurement points.

Technical line drawing of a mechanical assembly with mounting holes and a central bracket (no text or symbols)

External mountingFlush mounting

13.5 mm / 0.53" 3.5 mm / 0.14" 6 mm / 0.23" 43.5 mm / 1.71"

35 mm / 1.38" Ø 2 mm / 1/8" 50 mm / 2" 68 mm / 2.68" 90 mm / 3.54"

16 mm / 0.63" 17 mm / 0.67" 12.5 mm / 0.49"

ACNet - Audison Control Network

Software to control Audison amplifier

Audison Thesis AC-50 System Amplicate Setup Systems Dual Power Setup System Setup LOAD System Setup SAVE Dual Audison THESIS S/N 00M/104 Config 4 ch Output Endo Vagon Amp ID Front Tvr X/O Max A Ch Net Process Input: Cohromedia oil Amp ID Focal MR X/O Max B Ch Net Process Features 0.30 Amp ID Front MT Input Main Signal Input Analog Sensitivity and Pricet Level Noise Link Level 4.0V - 1.1kV V Clip A Lck 1.19 A Flug 1.19 B Lck 2.62 B Flug 2.62 Pricet Lck 1.27 Pricet Right 1.27 Dual/Power Memory A Channel Q Channel Memory 1 Hx80 Class Field Class Memory 2 Hi Current Hi Current Memory 3 A Class B Class Memory 4 Energy Saving Energy Saving System Audio Control Sub Volume Balance L Feder F 0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB +0.0 dB + Similar Status: Base and Power: A Channels Load Panel Hx80 Class Hx80 Class Box: High High Power Supply: High Hardware Monitor Supply Voltage: 12.6 V Temperature: 62 °C Protection: ALL A/R B/L B/P Overload: OK OK OK OK DC: OK OK OK Speedup: OK. Thermal: OK

Hardware Requirements:

1024x768 Display Optimized - 96 dpi Font size - 1 x USB port (1.1 compliant)

RJ12 (Provided) Rear Panel AC Link USB/AC Link (Provided) USB audison Front Panel USB (Provided) user to the RJ-12 cable from Link converter ble from USB/AC the PC recognizes software e PC monitor main page.

1 - Switch on the PC
2 - Switch on the amplifier
3 - Connect the AC Link to the RJ-12 cable from the TH to the USB/AC Link converter
4 - Connect the USB cable from USB/AC Link converter to PC
5 - Wait 5/10 secs until the PC recognizes the USB connection
6 - Launch the ACNet software
7 - If everything is OK the PC monitor displays the software main page.

ACNet - Audison Control Network

Functions Description

Audison Thesis AC-Net System Amplitude Setup System Dual Power Setup System Setup LCAD System Setup SAVE Quit audison THESIS TH quattro (0) TH due (1) TH uno (2) Amplifier Setting Identification S/N 00015434 Amp Config 4 ch Owner Emidio Vagnoni Amp ID Front TW X-Over A Ch 12 dB/occt Installer Elettroneda sil Amp ID Front WF X-Over B Ch 12 dB/occt Firmware 0.20 Amp ID TH Amp System Audio Control System Volume Sub Volume Balance +0 L R Foder F 0.0 dB -0.0 dB R +0 Note: Without DRC, these controls will not operate. Inputs Main Signal Input Analog Note: Without DRC, only Analog input will operate. Sensitivity and Preout Level Link Low(4.80/- 1.19V) V Dip A Left 4.80 A Fight 4.80 B Left 4.80 B Fight 4.80 Dual Power Memory A Channels B Channels Memory 1 Hi-AB Class Hi-AB Class Memory 2 Hi-Current Hi-Current Memory 3 A-Class A-Class Memory 4 Energy Saving Energy Saving Note: Without DRC, only Memory 1 will operate Amplifier Status Bias and Power A Channels B Channels User Preset Hi-AB Class Hi-AB Class Bias High High Power Supply High Hardware Monitor Supply Voltage 12.6 V Temperature 60 °C Protecions A-L A-R B-L B-R Overload OK OK OK OK Service OK OK OK OK Check Speakers OK Ov. Temperature OK

1 • SYSTEM DISPLAY: On this area the TH amplifiers connected to the system through the ACLink will be displayed. This screen will show the TH amplifier model name and its ADRS.
2 • IDENTIFICATION: This area shows report boxes and active fields, which enable the identification of each single amplifier.
3 • INPUTS: In this section it's possible to adjust each feature relating to the TH amplifier inputs
4 • DUAL POWER MEMORY: This menus allow the function setting for each amplifier separately.
5 • SYSTEM AUDIO CONTROL: The sliders in this area operate on the low level audio controls of the whole system.
6 / 7 • AMPLIFIER STATUS: This section is the real monitor of the amplifier's vital functions.
8 • SYSTEM AMPLITUDE SETUP: This function enables the input sensitivity of the amplifiers in the system.
9 • SYSTEM DUAL POWER SETUP: This function enables the function setting of all the amplifiers in the system.
10 • SYSTEM SETUP LOAD/SAVE: It guarantees the saving of the whole system setup or the loading of setups previously saved.

ACNet - Audison Control Network System Display

When installing a system composed by TH amplifiers it's possible to create a network between them by using ACLink series connection.

It is fundamental that a different ADRS starting from zero is assigned to each amplifier (see page 18).

In this way, when the software is turned on, the system will be able to automatically recognize which amplifier is present in the network.

This display will show all the "linked" amplifiers creating an icon corresponding to the model, the model name and the ADRS set during the installation.

The ACNet software allows the user to work either on one single amplifier or on the whole system.

In order to understand the use of the software we will work on a three way system + sub, multi-amplified, using a TH quattro on Tweeter and Midrange, TH due on Woofer and TH uno on Subwoofer.

For example, to work on a TH due double click on its dedicated icon. The name will be highlighted and its corresponding data will be displayed in the specific fields.

ACNet - Audison Control Network

Amplifier Setting: Identification

Amplifier Setting Identification S/N 00015434 Amp Config 4 ch Owner Emidio Vagnoni Amp ID Front TW X-Over A Ch 12 dB/oct Installer Elettromedia srl Amp ID Front WF X-Over B Ch 12 dB/oct Firmware 0.20 Amp ID TH Amp

The amplifier identification provides its S/N - serial number (fixed), the owner name (free-text), the installer name (free-text) and the Firmware release included in the microprocessor inside the TH amplifier.

The ACNet area shows the amplifier configuration (mechanically set in the TH Input Panel) and allows the Amp ID and AmpPreout setting through a drop-down menu.

The report boxes on the right confirm if any crossover modules have been used inside the amplifier and which slope setting has been given.

Amplifier Setting Identification S/N 00015434 Amp Config 4 ch Owner Emidio Vagnoni Amp ID Front TW A Ch A Ch Front TW Front MH Front MR Front WF Rear Rear TW X-Over A Ch 12 dB/oct X-Over B Ch 12 dB/oct Installer Elettromedia srl Amp ID B Ch Amp ID Preetout Firmware 0.20

The drop-down menu displays the available values to be assigned to the amplifier depending on its configuration / functioning modes.

For example, if the amplifier it's mono set, the available ID will be the specific ones for the mono setting

Amplifier Setting Identification S/N 00015434 Amp Config 4 ch Owner Emidio Vagnoni Amp ID Front TW X-Over A Ch 12 dB/oct Installer Elettromedia srl Amp ID Front WF X-Over B Ch 12 dB/oct Firmware 0.20 Amp ID TH Amp Preout Rear Rear TW Rear WF Center Subwoofer TH Amp Main Signal Input A Note: Without DRC, only Analog Input will operate.

If the system is also composed by non-TH amplifiers, they can be managed by attributing an ID to the Pre Out connected to them. The menu default option is "TH AMP", because generally a TH amp (provided with its specific Amp ID already) is connected to the Pre Out.

ACNet - Audison Control Network

Amplifier Setting: Inputs

Main Signal Input Analog Note: Without DRC, only Analog Input will operate. Sensitivity and Preout Level Link Low(4.80V - 1.19V) V Clip A Left 4.80 A Right 4.80 B Left 4.80 B Right 4.80

As for the ASC Setup Amplifier, it is necessary to set the system whenever wanting to use the digital input. In this area it is necessary to select the Main Signal Input for each amplifier connected to the system Example:

• If the amplifier being set is the first of the network to receive the signal from an external source, it is necessary to specify if it is an analog or digital one, by selecting Analog or Optical Master.
• If it is connected to both an analog and a digital source, select Optical Master and manage the sources switch through the DRC.
• If the amplifier being set receives the signal from another TH amp, connected in analog and digital AD Link, select Optical Slave.
• If the amplifier being set receives the signal from an external audio processor (Ex: Audison Bit One) select AD Link.

Inputs Main Signal Input Analog Note: Without DRC. Analog Sensitivity Operate. Sensitivity Link Low(4.80V - 1.19V) V Clip A Left 4.80 A Right 4.80 B Left 4.80 B Right 4.80

The note warns that if the DRC is not connected to the system, even selecting a digital input, when ACNet software will be switched off, only the Analog Input will operate.

ACNet - Audison Control Network

Amplifier Setting: Sensitivity and Preout Level

Budson Main Signal Input Analog Notes: Without DRC, only Analog Input will operate. Sensitivity and Preout Level Link Low(4.80V - 1.19V) V Clip A Left High (1.13V - 0.30V) 4.80 A Right Low(4.80V - 1.19V) 4.80 B Left 4.80 B Right 4.80

From this section featuring drop down menus, it is possible to regulate each amplifier's input sensitivity, acting also on the High/Low Level.

There are sliders for each channel which can work singularly or together if "linked". The software enables the fine tuning between right and left, acting on the corresponding slider. The software will show the level measured in V.

The LED Clip flashes when the max level is reached during tuning or playing.

Amplifier Setting Identification S/N 00015434 Amp Config 4 ch Owner Emidio Vagnoni Amp ID Front TW X-Over A Ch 12 dB/oct Installer Elettromedia srl Amp ID Front WF X-Over B Ch 12 dB/oct Firmware 0.20 Amp ID Rear TW Inputs Output Analog CRC, only Analog Input will operate. Locativity and Preout Level Low(4.80V - 1.19V) V Clip A Right 4.80 B Left 4.80 B Right 4.80 Preout Left 0.30 Preou Right 0.30

When using a non-TH amplifier to be controlled by DRC, an ID must be assigned to the Pre Out where it is connected. In this way it is still possible to manage the TH Preout sensitivity.

The specific sliders will come into view only when a name which is not TH Amp is given to the active field.

ACNet - Audison Control Network

Amplifier Setting: Dual Power Memory

Dual Power Memory A Channels B Channels Memory 1 Hi-AB Class Hi-AB Class Memory 2 Hi-Current Hi-Current Memory 3 A-Class A-Class Memory 4 Energy Saving Energy Saving Hi-AB Class Hi-Current A-Class Energy Saving Note: Without DRC, only Memory 1 w

In this section the TH amps operating modes memories can be selected.

The available preset are: Hi-AB Class (default), Hi-Current, A-Class, Energy Saving. They can be assigned to each single memory by using the drop down menus.

The memories can be recalled through the Memory keys 1 / 2 / 3 / 4 but when ACNet software is switched off, if the DRC is not connected to the system, the function selected on Memory 1 will be operating.

TH uno and TH due can only work with one preset, while TH quattro can work with one preset on A Channels and one on B Channels.

Note: When the preset A-Class or Energy Saving is assigned to A Channels, this will be automatically applied to B Channels. Please refer to the following table:

TH quattro

	1	2	3	4	5	6
Channels A	Hi-AB Class	Hi-Current	Hi-AB Class	Hi-Current	A Class	En.Saving
Channels B	Hi-AB Class	Hi-Current	Hi-Current	Hi-AB Class	A Class	En.Saving

ACNet - Audison Control Network System Audio Control

System Audio Control System Volume Sub Volume Balance -28.5 dB +3.0 dB R +0 Note: Without DRC, these controls will not operate.

These controls act on the whole system:

• System Volume: it's the main volume control of the system, the slider on Min position switches on the muting and shows "MUTE" in the specific box. The adjustment starts from -60 dB (muting) up to 0 dB Max, 0,5 dB steps.
• Sub Volume: it's the specific volume control for the subwoofer, the slider on Min position switches on the muting and shows "MUTE" in the specific box. The adjustment starts from -12 dB (muting) up to +6 dB Max, 0,5 dB steps.
• Balance: it's the control that allows the left and right balancing. When in central position (+0) the output volume between left and right it's identical. It's possible to unbalance the output volume of one channel compared to the other.
• Fader: t's the control that allows the Front and Rear balancing. When in central position (+0) the output volume between Front and Rear it's identical. It's possible to unbalance the output volume of one zone compared to the other.

The Amp ID of each single amplifier inside the system must be set correctly in order to operate the audio controls. The Sub Volume control, for example, will only operate on the amplifiers identified on the Amp ID as Subwoofer. The Balance control will operate on all the amplifiers characterized by the presence of a right and left channel (it will not operate on Central and Subwoofer).

The note warns that if the DRC is not connected to the system, when ACNet software is switched off, these controls will not operate.

ACNet - Audison Control Network

Amplifier Status

Amplifier Status Bias and Power A Channels B Channels User Preset Hi-AB Class Hi-AB Class Bias High High Power Supply High Hardware Monitor Supply Voltage 12.6 V Temperature 60 °C Protections A-L A-R B-L B-R Overload OK OK OK OK Service OK OK OK OK Check Speakers OK Ov. Temperature OK

The ACNet software performs a real-time check-up of the amplifiers operating conditions.

Once an amplifier is selected, the parameters monitored by the ASC microprocessor are shown on the specific boxes.

Bias and Power

• User preset: displays the operating modes selected in the Dual Power Setting. For the TH quattro the operating modes of both channels A and B are shown.
• Bias: displays the bias current value corresponding to the preset in use.
• Power Supply: displays the power supply value corresponding to the preset in use.

Hardware Monitor

• Supply Voltage: displays the power supply voltage (V) measured on the amplifier terminals.
• Temperature: displays the amplifier working temperature measured in °C.
• Protections: the protection conditions are provided for each channel.

Overload: warns when an extremely low load has been connected to the amplifier speaker terminals or when a temporary overload has occurred;

Service: warns when DC current is coming out of the speaker terminals;

Speakers: warns when a short-circuit has occurred in the connection between amplifier and speakers;

Ov. Temperature: warns when an operating temperature, dangerous for the amplifier, has been reached.

ACNet - Audison Control Network System Amplitude Setup

AUDISON 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100 System Amplitude Setup Amplifiers found on bus Output Level LINK Op TH quattro : 0 : A ch. Front TW LoSens - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Once each single amplifier in the system has been set, it is possible to use the setup window above, which allows the sensitivity adjustment of all amplifiers of the entire system.

Using this section, it's possible to operate in an even mode on the amplifiers level tuning.

Sliders will work singularly on each amplifier and, selecting the Output Level LINK key, it's possible to tie all the sliders together and modify the main system level. The LED Clip flashes, when the max level is reached during tuning or playing.

Single level adjustment

System Amplitude Setup Amplifies found on bus: TH quitts: 0: A ch Front T/W TH quitts: 0: B ch Front MF TH quitts: 0: Preout Front WF TH due: 1: A ch Rear TH uni: 2: A ch Subwoofer Output Level LINK Clip OK Cancel

Whole system level adjustment

System Amplitude Setup Amplifiers found on bus: TH quirts: 0: A ch Front TW TH quirts: 0: B ch Front MR TH quirts: 0: Preout Front WF TH due: 1: A ch Floor TH uno: 2: A ch Subwcales Output Level LINK Op OK Cancel

ACNet - Audison Control Network

System Dual Power Setup

Dual Power Setup Amplifies found on bus Memory 1 Memory 2 Memory 3 Memory 4 TH quatre: 0 - A ch. Front TX Hi-AB Class Hi-Current A-Class Energy Saving TH quatre: 0 - B ch. Front MR Hi-AB Class Hi-Current A-Class Energy Saving TH due: 1 - A ch. Floor Hi-AB Class Hi-Current A-Class Energy Saving TH line: 2 - A ch. Subwoofer Hi-AB Class Hi-Current A-Class Energy Saving OK Cancel

This setup enables the complete management of the operating mode of the amplifiers in the systems. The chart above presents in one window all the amplifier names and channels being used.

The fields are provided by default as in the example above. When wanting to achieve peculiar operating modes, depending on the acoustics results requested to the system, it is possible to modify the preset sequence.

Examples:

• To achieve the best quality/performance ratio system, select A-Class for TH quattro, Hi-AB Class for TH due and Hi-Current for TH uno.
• To achieve the best power/performance ratio system, select Hi-AB Class for TH quattro, Hi-Current for TH due and Hi-Current for TH uno.
• To achieve the highest audio quality system, use Memory 3.
• To achieve an unextended listening time while the car is parked, use Memory 4.

Technical Specifications

Power supply

Voltage 11 ÷ 15 VDC

Idling current:

A-Class 8.9 A

Hi-AB Class 6.6 A

Hi-Current 3.6 A

Energy Saving 2.6 A

Switched off 0.04 mA

Consumption @ 14.4 VDC, 1 Ω, Max musical power 105 A

Remote IN voltage 7 ÷ 15 VDC (1 mA)

Remote OUT voltage 12 VDC (20 mA)

Internal fuse (AFS) 100 A

Amplifier stage

Distortion - THD @ 1 kHz, 4 Ω, 90% Power 0.03 %

Bandwidth @ -3 dB, 2 VRMS, 4 Ω 5 ÷ 70k Hz

S/N ratio @ A weighted, 1 V, Max Power 104 dBA

Damping factor @ 1 kHz, 2 VRMS, 4 Ω

Input sensitivity (two ranges)

Input impedance (PRE IN)

Load impedance (Min @ Dual Power Mode - Hi-Current)

• 4 Ch

• 2 Ch

Output power (RMS) @ 14.4 VDC, 1% THD

Dual Power Mode - Hi-Current:

• 4 Ch @ 4 Ω

• 4 Ch @ 2 Ω

• 4 Ch @ 1 Ω

• 3 Ch @ 4 Ω

• 3 Ch @ 2 Ω

• 2 Ch @ 4 Ω

• 2 Ch @ 2 Ω

Dual Power Mode - A Class:

• 4 Ch @ 4 Ω

CEA Specifications

Output power @ 4 Ω, ≤ 1% THD + N, 14.4 V:

SN ratio (ref. 1 W output)

Inputs / Outputs / Filters

Inputs

Outputs

Filters

PRE / SP-DIF (Max 192 kHz/24 bit) OPTICAL and AD Link

PRE Bypass / AD link

2 x Removable kit (Hi-pass / Lo-pass / Band-pass 12/24 dB/oct)

32 steps 18 ÷ 7.5k Hz with 8 standard & 2 customizable modules

Size

B (Base) x L (Lenght) x H (Height) mm/inches

Weight kg/lbs

259×510×67/10"1/4×20"1/8×2"11/16

10.3/22.71

audison

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