W 12004 - Receiver Ram Audio - Free user manual and instructions

Product type	4-channel power amplifier
Brand	Ram Audio
Model	W 12004
Power supply	170-265 V AC, single-phase, 50/60 Hz
Class	Class I
Operating modes	Dual, Link, Bridge
Audio inputs	4 x Neutrik XLR female (balanced/unbalanced)
Audio outputs	2 x Speakon (NEUTRIK)
Connectivity	USB for firmware update and DSP control, Ethernet for remote standby
LED indicators	SIG, TEMP, PMS, ICL (per channel)
Protection systems	PMS (Power Management System), ICL (Intelligent Clipping Limiter), SSP (SOA Sentry Protection)
Input attenuators	Detented, independent per channel
Sensitivity adjustment	32 dB (factory)
Cooling	Forced ventilation, do not obstruct
Maintenance and cleaning	Dust the ventilation grills, do not use abrasive products
Safety	Do not expose to rain or moisture, do not open the device, refer servicing to qualified personnel
General information	User manual available in PDF, 16 pages

Frequently Asked Questions - W 12004 Ram Audio

What are the operating modes of the W 12004 amplifier?

The amplifier can operate in DUAL (stereo), LINK (input linked to the next channel), and BRIDGE (bridged) mode for maximum power.

How to connect speakers in Bridge mode?

Select BRIDGE mode, connect the input signal to channel A (or C for 4-channel models), and connect the speakers to the Speakon terminals +1 and -2 of the corresponding channel. Note that '-' is not ground.

What does the orange PMS LED mean?

The PMS (Power Management System) LED indicates an anomaly: power-up (output inhibited), high internal temperature near cutoff, or excessive current consumption. The amplifier reduces power to protect components.

How to connect an unbalanced signal to the XLR input?

For unbalanced wiring, solder pins 1 and 3 to ground and pin 2 to signal. If pin 3 is not connected to ground, a 6 dB (75% power) loss will occur.

Can I update the amplifier's firmware?

Yes, via the USB connector on the front panel. This also allows optional DSP control.

What to do if the amplifier overheats abnormally?

Check that the ventilation grills are not obstructed and that the unit is installed in a well-ventilated area. If the problem persists, contact a qualified technician.

What is the required power supply voltage?

The amplifier operates on 170-265 V AC, single-phase mains. The power cord is coded: blue (neutral), brown (phase), yellow-green (ground).

How to put the amplifier into remote standby?

Set the main switch to position II (optional). Power on is then done remotely via the Ethernet connection (orange LED lit in standby).

What types of input and output connectors are available?

Inputs: 4 Neutrik XLR female connectors (balanced or unbalanced). Outputs: 2 Speakon connectors for speakers. Male XLR connectors on the output allow paralleling other amplifiers.

What does the ICL LED mean?

The ICL (Intelligent Clipping Limiter) LED lights up when the anti-clipping system is active. It optimizes speaker performance and prevents damage in case of saturation.

USER MANUAL W 12004 Ram Audio

Professional Power Amplifiers

6000-9000-12000

9004-9044-12004-12044

WSeries

AC high-frequency micro-Link Audio Adder 1- Top4SUB 32dB Link+40 dB -3dB -3dB 3dB 0dB W RAM Audio RAM Audio

OPERATION MANUAL

NOTICE D'EMPLOI

BEDIENUNGSANLEITUNG

SAFETY PRECAUTIONS AVE

SSEMENESTSHINWEISE

Completely black image with no visible content or text.

WARNING:

CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN

ACHTUNG!:

To avoid fire or electrocution risk do not expose the unit to rain or moisture.

To avoid electric shock, do not open the unit. No user servicable parts inside. In the case of disfunction, have the unit checked by qualified agents.

Class I device.

Clean the front panel filters regularly. Extract the filters removing the front panel grid unscrewing the thumbscre-ews placed at the sides of the grid. Clean the filters using water and deter-gent. Place the grid filter introducing first the internal side and screwing the thumbscrew.

IMPORTANT:

Clean the front panel filters regularly. Extract the filters removing the front panel grid unscrewing the thumbscre-ews placed at the sides of the grid. Clean the filters using water and deter-gent. Place the grid filter introducing first the internal side and screwing the thumbscrew.

IMPORTANT:

Clean the front panel filters regularly. Extract the filters removing the front panel grid unscrewing the thumbscre-ews placed at the sides of the grid. Clean the filters using water and deter-gent. Place the grid filter introducing first the internal side and screwing the thumbscrew.

Grid Filter Detail

INDEX

INHALTSVERZEICHNIS

TABLE DES MATIÈRES

0 Safety Precautions

1 General Information

1.1 Introduction
1.2 Main Characteristics

2 Controls: Where and What?

2.1 Front Panel
2.2 Rear Panel

3 Installation and Operation

3.1 Connections
3.1.1 Dual Channel Mode
3.1.2 Link Channel Mode
3.1.3 Bridge Channel Mode
3.2 Configuration
3.3 Troubleshooting

4 Technical Specifications

4.1 Protection Systems
4.2 Data

©2011 by C.E. Studio-2 s.l.

Pol.Ind. La Figuera

C/Rosa de Luxemburgo n°34

46970 Alaquas - Valencia - SPAIN

Phone: [phone]

Fax: [phone]

http://www.ramaudio.com

e-mail: [e-mail]

P-5435-634 QXPDQXDoc 4/11

RAM Audio ^e , PMS ^TM , SSP ^TM , ICL ^TM ,

FCM ^™ and QuantaPulse ^™ are registered trademarks of C.E. Studio-2 s.l..

All other names are trademarks of their respective companies.

General Information

The W Series devices feature two or four channel models, ready for rough handling in the touring world. For this purpose, W Series amps implement oversized high efficiency regulated power supply with PFC front end to deliver their full performances independently of mains status. This together with oversized high efficiency audio power stage, forced front to back cooling through a component-free path with removable front panel dust filters, improved rugged mechanical design with even weight distribution, full digital control from LCD display on the front panel... Resulting in: just power, reliability and robustness for your touring gigs!

1.2 Main Characteristics

• PFC QuantaPulse™ Regulated Dual SMPS
• Digital Control with extra large LCD display user interface
• Channel Temperature and Output Level Monitor in the LCD
• USB port for firmware update and DSP control
• 25 position Gain, Bridge mode, Input Links and ICL, front panel configurable
  • Digital Potentiometers with Encoder control
  • RAM Audio Power Management System
• Hi Efficiency, Heavy Duty Audio Power section for extreme use
• Easily removable front panel dust filters
• Industry standard Neutrik® XLR and Speakon® connectors
• Optional low latency 24bits 96kHz high performance DSP with post-DSP signal links and Ethernet control. It features up to 70 meters input delay.
• Optional EtheRAM II Ethernet monitor and control system
• Optional EtherSound™/CobraNet™ audio transport and AES/EBU Digital input

Controls: Where and What?

Configuration and signal attenuation level control knobs: Permit independent control of each channel's attenuation and change the amplifier configuration. See page 10.
2 SIGNAL: This LED indicates presence of signal at the inputs. TEMP: This LED shows temperature protection is active. PMS: LED indicating PMS in operation (see page 13) ICL: LED indicating Intelligent Clip Limiter in operation (see page 13).
3 Main Power Switch: Position I: Connects the amplifier's current feed. (Blue LED on). Position O disconnects the Power. Position II (optional): Stand-by Mode. The Amp's Power is activated remotely via Ethernet. (Amber LED).
4 Display: See page 10.
5 USB Connector for firmware upgrade and optional DSP control.

2.1 Frontplatte

Siehe Fig. 1

Controls: Where and What?

1 Signal Input: Female Neutrik® XLR Connectors for the amplifier's signal input.

Signal Link: Male Neutrik® XLR Connectors for daisy chaining input signal to other amplifiers (parallel connected to female input connectors).

2 Speaker connectors: Neutrik® Speakon to connect the speakers.
3 Mains Power Cord: to connect the amplifier to the mains network. The colour code is: Blue: Neutral Brown: Live, single phase Yellow-green: Protective Earth

2.2 Rückplatte

Siehe Fig. 2

2 OUT CHUB OUT CHB 1 1 2 OUT CHAB OUT CHA CE 20-24V~ 540Hz SN CHB CHC CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD CHD

Installation and Operation

The Power switch must always be on the "Off" position before plugging the amp to a properly earthed mains socket (170-265V AC). The colour code is:

Blue: Neutral

Brown: Live, single phase

Yellow-green: Protective Earth

The input signal fed to the amplifier can be either balanced or un-balanced. The drawing below describes both ways to wire an XLR connector for the purpose.

Balanced Signal: Connect pin 1 to Ground, pin 2 to Signal + (hot) and pin 3 to Signal - (cold).

Unbalanced Signal: Connect Pin 1 to Ground, pin 2 to Signal and pin 3 to Ground.

3.1 Anschlüsse

Brown: Live, single phase

Yellow-green: Protective Earth

Brown: Live, single phase

Yellow-green: Protective Earth

Important!: If a connection is done with a un-balanced line and pin 3 on the XLR is not connected to ground, a 6 dB loss occurs in the line and only a quarter of the amplifier power is produced.

The amplifiers provides, for each channel, a female XLR Connector (Signal Input) paralleled to a male XLR to daisy chain several amplifiers with the same signal line (LINK).

Installation and Operation

The amplifier can operate on three different configurations: DUAL, LINK or BRIDGE. The connections for the three modes are different.

3.1.1 DUAL Channel Mode

See Figure 3

• Set the Amplifier Mode to "DUAL".
• Select the chosen Gain (Default setting 32dB).
• Connect the signal lines to the female XLR connectors on all channels.
• Connect the speakers' lines to the corresponding Speakon on the amp respecting the polarity.
• Use the level control knob on the front panel to adjust each channel independently.
• Each signalling LED group will show its corresponding channel status.

3.1.2 LINK Channel Mode

See Figure 4

- Operate as Dual Channel Mode with the signal input linked to another adjacent channel.

3.1.3 BRIDGE Channel Mode

See Figure 5

• Set the configuration mode to "BRIDGE" (see page 9).
• Select the chosen Gain (Default setting 32dB).
• Connect a signal line to input female XLR Channel "A" (or Ch-C in 4 channel models).
• Connect the speaker line to the Channel A Speakon (or Ch-C in 4 channel models) wired to +1 and -2. In this way pin +1 is positive.
• Use Channel-A (or Ch-C in 4 channel modes) control knob to adjust the amp's output.
• The signalling LED groups will show the single channel status.

WARNING! The “-” pins, do not have to be Ground!

ACHTUNG! The “-” pins, do not have to be Ground!

3 Dual Channel 4 Channel models

4 Link Inputs 4 Channel models

5 Bridge Mode 4 Channel models

Bridge + Dual Mode 3 Channels Mode

3.2 Configuration

1-G32dB-Dual-UnLink M 0dB 0dB -3dB -6dB

Main Screen: shows the current preset name ("G32dB-Dual-UnLink" as default), and the channel attenuation. As an option you can show the output VUmeter. The "M" appears at the top right corner if the preset has been changed from the last load. You can change each channel amplifier level turning the encoder knob for each channel.

Menu navigation: to access to the Menu screen you have to press the CH-A encoder knob from the Main Screen. Turning the CH-A encoder knob you access to the different options. When you press the CH-A encoder knob you start the Edit mode (only for some options), and a "E" blinking letter appears at the top right corner. Using the four encoder knobs you can change the different options. Pressing another time the CH-A encoder knob you finish the Edit mode, and return to the Menu screen. The last menu option is Exit to return to the main screen or Exit + Dial Lock to protect the encoder knob from any unwanted action. If you use this option you can unlock the system pressing the CH-A knob for 5 seconds. If you need to limit the access to the configuration you can define a password from the Password Manager in the Amplifier Setup section. The Menu development are the next:

Amplifier Setup

Channel Temperature
60%	50%	60%	70%

Amplifier Setup: You access to the Setup Menu, where you can change parameters as Inputs Link, Gain, Bridge Mode... Also you can change the preset and limit the access using a Password. See Amplifier Setup section on next page for more details.

Channel Temperature: Show the percent of maximum temperature for each channel. When you are near the 100% the PMS system limits the power output to avoid reach the overheating protection.

Display Mode UU meter

Operating Time 45h 34min

Display Mode: Change between Channel Attenuation.or Vu meter mode in the Main Screen.

Operating Time: shows the amplifier total time operation.

Firmware Version Amp Control v1.2b

Firmware Version: shows the Amp Control firmware version. You can upgrade it using the USB port.

Installation and Operation

Amplifier Setup: when you are in the Main Menu and access to the Amplifier Setup section, you can change different amplifier parameters, change the current preset and protect the access using a password. The Menu development for this section is the next:

Preset Manager Load Save Del Rest

Inputs Link IN-A IN-B IN-C IN-D

Amplifier Gain [dB] 32dB 32dB 32dB 32dB

Amplifier Mode BRDG BRDG DUAL DUAL

Attenuators Link Disabled

ICL Clip Limiter Enabled

Password Control Enabled

Preset Manager: you can change quickly the amplifier preset configuration. To access to any option you have to enter in Edit mode (pressing CH-A knob) and turn the corresponding encoder: CH-A for Load, CH-B for Save, CH-C for Delete and CH-D for Restore default. Select a preset number from 0 to 9.

Inputs Link: you can Link the input signal to the next channel. Enter in Edit mode and turn the CH-B, CH-C or CH-D knob to link the input to the previous channel.

WARNING! You have to remove the input connector of the linked channel!

Amplifier Gain: you can change independently the amplifier gain for each channel from 26dB to 38dB (0.5dB steps). Enter in Edit mode and use the corresponding channel knob to modify it.

Amplifier Mode: it configures the amplifier in Dual or Bridge mode. In Edit mode use the CH-A or CH-C channel knob to change the option.

Attenuators Link: you can link all attenuators to modify the output level for all channels simultaneously. When you change this option to Enabled, you modify the attenuation for all channels using any channel knob.

ICL Clip Limiter: you can turn on or turn off the ICL Clip Limiter for all channels. We recommend to you to work with this option enabled to avoid any damage to the speakers.

Password Control: you can define a password to prevent any modification of the amplifier configuration. When you turn on this option, you have to introduce a password using the four knob encoders, and confirm it. After that, you need to introduce this password each time you want to modify the amplifier configuration. There is a generic password which you can use to disable the Password Control, it is: 5 5 5 5

Installation and Operation

In the event of incorrect connection or misfunctioning, the amp will activate one or more of its LED to warn about the problem.

3.3 Problemlösung

Correct function: SGNL lights to indicate signal presence.

ICL: The Intelligent Clip Limiter is operating (see page 10).

No Signal: No Input Signal is reaching the amp.

Overheating: The amplifier has reached the maximum operational temperature. Most common cause is: the normal air flow is blocked, accumulated dirt, dust or object leaning against the grill. Check and clean periodically.

PMS: Several causes can trigger this LED, most common are:

- The amplifier is in power-on sequence, where output is inhibited until the amp circuits are ready to operate.

- The internal temperatures rise to near thermal shutdown point due to unfavourable operating conditions.

- Excessive mains current consumption.

This is a complete set of protections that monitors the main amp parameters (load status, signal input, temperature, current, etc.) in order to draw from the power supply only the precise amount of current required to maintain safe operation during hazardous or extreme working conditions.

This system controls the amount of power that the amp delivers under three basic circumstances:

1.- The power-on sequence, where output is inhibited until the amp circuits are ready to operate. This routine is repeated at every restart, not just when the power switch is activated.
2.- When internal temperatures rise to near thermal shutdown point due to unfavourable operating conditions. Here the system takes control, restricting current so as to maintain operational continuity at the precise power level which the amp is capable of withstanding at that particular moment.
3.- Excessive mains current consumption. This event only occurs either under laboratory conditions (long term sinusoidal signal testing with dummy loads) or, for example, in field applications in conditions of prolonged acoustic howl-round. Here PMS takes control to avoid any damage to the speakers and to prevent the mains breaker from tripping or the fuses blowing.

ICL2™ - Intelligent Clip Limiter

The RAM Audio ICL2 is an anticlip system to avoid speaker failure and provide more acceptable sound quality even when clipping occurs. With the ICL2 system you don't lose the music "punch" but the speakers are kept under control.

SSP™ - SOA Sentry Protection

SOA Sentry protection effectively limiting the power that the amp could deliver into an incorrect load or to a direct short-circuit. This avoids power transistor failure.

FCM™ - Faulty Channel Management

Faulty Channel Management system to avoid entire device shutdown.

PMS™ - Power Management System

FCM™ - Faulty Channel Management

Faulty Channel Management system to avoid entire device shutdown.

PMS™ - Power Management System

FCM™ - Faulty Channel Management

Faulty Channel Management system to avoid entire device shutdown.

Technical Specifications

W-6000 W-9000 W-12000 W-9004 W-9044 W-12004 W-12044
Output Power
1kHz, 1.0% THD+N
@ 2Ω 2x 3025 W 2x 4400 W 2x 5900 W 4x 2260 W - 4x 3025 W -
@ 4Ω	2x 1600 W	2x 2300 W	2x 3100 W	4x 1150 W	4x 2200 W	4x 1600 W	4x 2950 W
@ 8Ω	2x 820 W	2x 1200 W	2x 1600 W	4x 600 W	4x 1150 W	4x 820 W	4x 1550 W
Bridge @ 4Ω	6050 W	8800 W	11800 W	2x 4520 W	-	2x 6050 W	-
Bridge @ 8Ω	3200 W	4600 W	6200 W	2x 2300 W	2x 4400 W	2x 3200 W	2x 5900 W
Frequency Response
Power Bandwidth ±0.25dB			20Hz-20kHz
Phase Response
@ 1 watt 20Hz-20kHz			±15 deg
Total Harmonic Distortion
20Hz-20kHz			<0.05%
Intermodulation Distortion
SMPTE			<0.05%
Damping Factor
20-500Hz @8Ω			>500
Crosstalk
20Hz-20kHz			>80dB
Voltage Gain			26dB to 38dB (0.5dB steps)
Sensitivity
Rated Power (26/32/38dB Gain)	4/2/1 V	4.9/2.5/1.2 V	5.7/2.8/1.4 V	3.5/1.7/0.9 V	4.8/2.4/1.2 V	4.1/2/1 V	5.6/2.8/1.4 V
Signal-to-Noise Ratio
20Hz-20kHz	113dB	115dB	116dB	112dB	115dB	113dB	116dB
Required AC Mains
Operating Voltage (50Hz-60Hz)			170V-265V AC
Power On Idling (@230V)	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A	0.5 A
1/8 Rated Power (@230V min. Z)	7 A	10 A	13 A	11 A	10 A	14 A	13 A
Dimensions
W x H x D (mm)			483x89x460
W x H x D (inches)			19x3.5x18.1
Weight
Net (Kg-Lbs)	10-22.1	12-26.5	12-26.5	12-26.5	12-26.5	12-26.5	12-26.5

Protections

Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, Mains Overvoltage, ICL ^™ , PMS ^™ , SSP ^™ and FCM ^™

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