Quantum QE80.4DSP - Hi-Fi System ESX - Free user manual and instructions

Product Type	4-Channel Class D Amplifier with DSP Processor
Model	Quantum QE80.4DSP
Brand	ESX
Category	Car Audio Hi-Fi System
Power Output RMS (13.8V)	4 x 80W @ 4Ω, 4 x 125W @ 2Ω, 2 x 250W bridged @ 4Ω
Power Output MAX (13.8V)	4 x 160W @ 4Ω, 4 x 250W @ 2Ω, 2 x 500W bridged @ 4Ω
Frequency Response (-3dB)	5 Hz - 20 kHz
Signal-to-Noise Ratio	>90 dB
THD+N	0.05%
Input Sensitivity	4 - 0.3 V
Input Impedance	>47 kΩ
DSP Processor	Cirrus Logic Single Core 32-bit, 8-Channel, 192 kHz
Equalizer	31-band parametric EQ (channels A-F), 11-band (channels G-H), -18 to +12 dB, Q 0.5-9
Crossover	HP/BP/LP, 6-48 dB/octave
Time Alignment	0-15 ms / 0-510 cm
Phase Shift	0°/180°
Audio Inputs	6 RCA low-level (FL/FR/RL/RR/SUB L/R), High-level via cable set, AUX 3.5mm, Optical TOSLINK (stereo PCM)
Audio Outputs	Line out RCA (channels E-H)
Remote Control	Included with LED display for volume, input, and preset selection
DSP Software	X-CONTROL 2 for Windows (XP SP3 and later)
Auto Turn On	Via DC offset on high-level input (switchable ON/OFF)
Fuse Rating	2 x 35A (internal)
Dimensions (W x H x D)	165 x 46 x 255 mm
Power Supply	12V vehicle electrical system only
Protection Circuit	Overload, overheating, short circuit (PROTECT LED)
Included Accessories	USB cable 5m, high-level input cable set, low-level RCA cable set, CD-ROM, remote controller, owner's manual

Frequently Asked Questions - Quantum QE80.4DSP ESX

What is the power output of the Quantum QE80.4DSP?

The amplifier delivers 4 x 80W RMS at 4 ohms, 4 x 125W RMS at 2 ohms, and 2 x 250W RMS in bridged mode at 4 ohms (13.8V). Maximum power outputs are 4 x 160W, 4 x 250W, and 2 x 500W respectively.

How do I connect the amplifier to a head unit without RCA outputs?

Use the supplied High Level Input cable set to connect to the speaker outputs of your head unit. Ensure the AUTO TURN ON switch is set to ON, as the amplifier detects a DC offset to power on automatically. Never use both high-level and RCA inputs simultaneously.

How can I tune the DSP settings?

Download and install the X-CONTROL 2 software on a Windows PC. Connect the amplifier via the included USB cable (Mini-B). The software allows you to adjust crossover, equalizer, time alignment, and presets. You can store up to 10 presets and recall them with the remote control.

What should I do if the PROTECT LED lights up?

The PROTECT LED indicates a malfunction such as short circuit, overheating, or low impedance. Check all speaker and power connections. Ensure the amplifier has adequate ventilation. If the issue persists after troubleshooting, have the unit serviced by a qualified technician.

Can I use the optical input for audio?

Yes, the OPTICAL INPUT accepts a TOSLINK cable with stereo PCM signal (12-96 kHz). Select the OPTICAL source using the remote control's INPUT button or via the X-CONTROL 2 software.

How do I update the firmware?

Firmware updates are done via the MCU Upgrade included in the X-CONTROL 2 package. Connect the amplifier to a PC via USB, run the 'McuUpgrade.exe' file, and wait for the process to complete. This is required before using X-CONTROL 2.

What is the correct way to set time alignment?

Measure the distance from each speaker to the listener's position (e.g., driver's ear). Enter these distances in centimeters in the TIME ALIGNMENT section of the X-CONTROL 2 software, then click 'DelayCalc'. The software automatically calculates and applies the delays to align the sound stage.

Is the amplifier compatible with 64-bit Windows?

Yes, but for 64-bit operating systems you may need to manually install the 64-bit device drivers, which are available in the unzipped X-CONTROL 2 folder. For 32-bit systems, drivers install automatically.

Can I bridge channels for more power?

Yes, channels can be bridged. The amplifier supports 2 x 250W RMS in bridged mode at 4 ohms. When bridging, connect the speaker to the positive terminal of one channel and the negative terminal of the adjacent channel (refer to manual for proper bridging pairs).

What are the cleaning and maintenance recommendations?

Disconnect the amplifier from power before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquids or chemicals. Ensure cooling vents remain unobstructed. Regularly check all connections for tightness. Fuses should only be replaced with identical 35A fuses.

USER MANUAL Quantum QE80.4DSP ESX

Abstract geometric logo design with stylized letter 'S' and diagonal lines (no text or symbols)

QUANTUM

QE80.4DSP

CLASS D 4-CHANNEL AMPLIFIER

WITH DSP PROCESSOR

ALLGEMEINE HINWEISE

Pure technical diagram showing a door and wall with hatched base, no text or symbols present

H+) BRAUN Kanal H +
H-) BRAUN/SCHWARZ Kanal H-
G+) ORANGE/SCHWARZ Kanal G +
G-) ORANGE Kanal G -
F+) LILA/SCHWARZ Kanal F +
F-) LILA Kanal F-
E+) GRÜN Kanal E +
E-) GRÜN/SCHWARZ Kanal E-

FUNKTIONEN UND BEDIENELEMENTE DER FERNBEDIENUNG

ALLGEMEINE HINWEISE

TECHNISCHE DATEN

Due to the ongoing development of this device, it is possible that the information in this manual is incomplete or is not matching to the delivery status.

SCOPE OF DELIVERY

1 x QE80.4DSP Amplifier
1 x USB Cable, A- to Mini-B Connector, 5 m
1 x Cable Set High Level Audio Inputs
1 x Cable Set Low Level Audio Inputs with 4 RCAs
1 x CD-ROM with X-CONTROL Software
1 x Owner's Manual (German/English)

1 x Remote Controller with LED Display, incl. Connection Cable

NOTE

This symbol shows you important notes on the following pages. Follow these notes necessarily, otherwise damages of the device and on the vehicle as well as serious injuries may be caused.

PLEASE KEEP THIS MANUAL FOR LATER PURPOSES!

SAFETY INSTRUCTIONS

THE PURCHASED DEVICE IS ONLY SUITABLE FOR AN OPERATION WITH A 12V ON-BOARD ELECTRICAL SYSTEM OF A VEHICLE. Otherwise fire hazard, risk of injury and electric shock consists.

PLEASE DO NOT MAKE ANY OPERATION OF THE SOUND SYSTEM, WHICH DISTRACT YOU FROM A SAFE DRIVING. Do not make any procedures, which demand a longer attention. Perform these operations not until you have stopped the vehicle on a safe place. Otherwise the risk of accident consists.

ADJUST THE SOUND VOLUME TO AN APPROPRIATE LEVEL, THAT YOU ARE STILL ABLE TO HEAR EXTERIOR NOISES WHILE DRIVING. High performance sound systems in vehicles may generate the acoustic pressure of a live concert. The permanent listening to extreme loud music may cause the loss of your hearing abilities. The hearing of extreme loud music while driving may derogate your cognition of warning signals in the traffic. In the interests of the common safeness, we suggest to drive with a lower sound volume. Otherwise the risk of accident consists.

DO NOT COVER COOLING VENTS AND HEAT SINKS. Otherwise this may cause heat accumulation in the device and fire hazard consists.

DO NOT OPEN THE DEVICE. Otherwise fire hazard, risk of injury and electric shock consists. Also this may cause a loss of the warranty.

REPLACE FUSES ONLY WITH FUSE WITH THE SAME RATING. Otherwise fire hazard and risk of electric shock consists.

DO NOT USE THE DEVICE ANY LONGER, IF A MALFUNCTION, WHICH REMAINS UNREMEDIED. Refer in this case to the chapter TROUBLE SHOOTING. Otherwise risk of injury and the damage of the device consists. Commit the device to an authorized retailer.

THE INSTALLATION OF A POWER CAPACITOR WITH SUFFICIENT CAPACITY IS RECOMMENDED. High performance amplifiers cause high potential voltage drops and need a high power consumption at a high volume level. To relieve the vehicle's on-board system, it is recommended to install a power capacitor between the battery and the device which works as buffer. Consult your car audio retailer for the appropriate capacity.

INTERCONNECTION AND INSTALLATION SHOULD BE ACCOM- PLISHED BY SKILLED STAFF ONLY. The interconnection and installation of this device demands technical aptitude and experience. For your own safeness, commit the interconnection and installation to your car audio re- tailer, where you have purchased the device.

DISCONNECT THE GROUND CONNECTION FROM THE VEHICLE'S BATTERY BEFORE INSTALLATION. Before you start with the installation of the sound system, disconnect by any means the ground supply wire from the battery, to avoid any risk of electric shock and short circuits.

CHOOSE AN APPROPRIATE LOCATION FOR THE INSTALLATION OF THE DEVICE. Look for an appropriate location for the device, which ensures a sufficient air circulation. The best places are spare wheel cavities, and open spaces in the trunk area. Less suitable are storage spaces behind the side coverings or under the car seats.

DO NOT INSTALL THE DEVICE AT LOCATIONS, WHERE IT WILL BE EXPOSED TO HIGH HUMIDITY AND DUST. Install the device at a location, where it will be protected from high humidity and dust. If humidity and dust attain inside the device, malfunctions may be caused.

MOUNT THE DEVICE AND OTHER COMPONENTS OF THE SOUND SYSTEM SUFFICIENTLY. Otherwise the device and components may get loose and act as dangerous objects, which could cause serious harm and damages in the passenger room.

ENSURE NOT TO DAMAGE COMPONENTS, WIRES AND CABLES OF THE VEHICLE WHEN YOU DRILL THE MOUNTING HOLES. If you drill the mounting holes for the installation into the vehicle's chassis, ensure by any means, not to damage, block or tangent the fuel pipe, the gas tank, other wires or electrical cables.

ENSURE CORRECT CONNECTION OF ALL TERMINALS. Faulty connections may could cause fire hazard and lead to damages of the device.

DO NOT INSTALL AUDIO CABLES AND POWER SUPPLY WIRES TOGETHER. Ensure while installation not to lead the audio cables between the head unit and the amplifier together with the power supply wires on the same side of the vehicle. The best is a areal separated installation in the left and right cable channel of the vehicle. Therewith a overlap of interferences on the audio signal will be avoided. This stands also for the equipped bass-remote wire, which should be installed not together with the power supply wires, but rather with the audio signal cables.

ENSURE THAT CABLES MAY NOT CAUGHT UP IN CLOSE-BY OBJECTS. Install all the wires and cables like described on the following pages, therewith these may not hinder the driver. Cables and wires which are installed close-by the steering wheel, gear lever or the brake pedal, may caught up and cause highly dangerous situations.

DO NOT SPLICE ELECTRICAL WIRES. The electrical wires should not be bared, to provide power supply to other devices. Otherwise the load capacity of the wire may get overloaded. Use therefor a appropriate distribution block. Otherwise fire hazard and risk of electric shock consists.

DO NOT USE BOLTS AND SCREW NUTS OF THE BRAKE SYSTEM AS GROUND POINT. Never use for the installation or the ground point bolts and screw-nuts of the brake system, steering system or other security-relevant components. Otherwise fire hazard consists or the driving safety will be derogated.

ENSURE NOT TO BEND OR SQUEEZE CABLES AND WIRES BY SHARP OBJECTS. Do not install cables and wires not close-by movable objects like the seat rail or may bent or harmed by sharp and barbed edges. If you lead a wire or cable through the hole in a metal sheet, protect the insulation with a rubber grommet.

KEEP AWAY SMALL PARTS AND JACKS FROM CHILDREN. If objects like these will be swallowed, the risk of serious injuries consists. Consult immediately a medical doctor, if a child swallowed a small object.

INSTALLATION INSTRUCTIONS

NOTE

Before you start with the installation of the sound system, disconnect necessarily the GROUND connection wire from the battery to avoid any risk of electric shocks and short circuits.

MECHANICAL INSTALLATION

Avoid any damages on the components of the vehicle like air bags, cables, board computer, seat belts, gas tank or the like.

Ensure that the chosen location provides a sufficient air circulation for the processor. Do not mount the device into small or sealed spaces without air circulation near by heat dispersing parts or electrical parts of the vehicle.

Do not mount the processor on top of a subwoofer box or any other vibrating parts, whereby parts could loosen inside.

The wires and cables of power supply and the audio signal must be as short as possible to avoid any losses and interferences.

1

Pure technical diagram showing a door and wall with hatched base, no text or symbols present

At first you need to find a suitable installation location for the processor. Ensure that enough space for the installation of the cables remains and that they will not bent and have sufficient pull relief.

2

Keep the processor at the chosen mounting location in the vehicle. Then mark the four drill holes with an appropriate pen or peening tool through the designated mounting holes at the processor.

3

Lay the processor aside and then drill the holes for the mounting screws at the marked locations.

4

Then uphold the processor to the chosen position and fix the screws through the mounting holes into the drilled screw holes.
Please ensure not to damage any components of the vehicle while you drilling the holes. Alternatively (depends on the material of the surface) you can also use self-tapping screws.
Ensure that the mounted processor is tightly fixed and can not come loose while driving.

ELECTRICAL INTERCONNECTION

BEFORE CONNECTING

For the professional installation of a sound system, car audio retail stores offers appropriate wire kits. Ensure a sufficient profile section (at least 25 mm^2 ), the suitable fuse rating and the conductivity of the cables when you purchase your wiring kit. Clean and remove rust-streaked and oxidized areas on the contact points of the battery and the ground connection. Make sure that all screws are fixed tight after the installation, because loose connections cause malfunctions, insufficient power supply or interferences.

GND

Connect this GROUND terminal with a suitable contact ground point on the vehicle's chassis. The ground wire must be as short as possible and must be connected to a blank metallic point at the vehicle's chassis. Ensure that this ground point has a stable and safe electric connection to the negative “—”pole of the battery. Check this ground wire from the battery to the ground point if possible and enforce it, if required. Use a ground wire with a sufficient cross section (at least 25 mm ^2 ) and the same size like the plus (+12V) power supply wire.

REM

Connect the turn-on signal (e.g. automatic antenna) or the turn-on remote signal of your head unit with the REM-terminal of the amplifier. Use therefor a suitable cable with a sufficient cross section (0,5 mm ^-2 ). Hereby the amplifier turns on or off with your head unit.

AUTO TURN ON

If you operate the amplifier with the HIGH LEVEL INPUT (A), you must not connect the REM cable of the device. Set the AUTO TURN ON (B) switch to position ON. The amplifier detects now by a so called "DC Offset" (a voltage increase up to 6 volts) on the high level speaker outputs. Then, if the head unit is turned on the amplifier turns automatically on. As soon as the head unit is turned off, the amplifier shuts down automatically.

Note: The AUTO TURN ON usually works with 90% of all head units, because they are equipped with the "High Power" outputs. Only with a few older head units the AUTO TURN ON function is not applicable.

Hint: If you use the AUTO TURN ON function, a +12V remote turn-on signal is routed to the REM socket, which you can use for turning on other devices. Simply connect the two REM sockets of the devices with each other.

BATT+12V

Connect the BATT+12V-terminal with the +12V pole of the vehicle's battery. Use a suitable cable with a sufficient cross section (at least 25 mm ^2 ) and install an additional in-line fuse. For safety reasons the distance between the fuse block and the battery should be shorter than 30 cm. Do not set in the fuse into the fuse block until the installation is accomplished.

FUSE

The fuses, which protect the device against short circuits and overload, are located inside the device. To replace a defective fuse, first clamp off the device from the power supply. Then remove the bottom plate of the device and replace the defective fuse in the inner slot with a new fuse of the same type and same rating.

FUNCTIONAL INSTRUCTIONS

AMPLIFIER FEATURES AND OPERATIONAL CONTROLS

1 The LINE IN RCA jacks must be connected with the RCA output jacks of the head unit (2 x Stereo Output Front/Rear).

2 The SUB IN RCA jacks must be connected with the RCA output jacks of the head unit (Subwoofer Output).

3 The LINE OUT outputs provide a linear full range signal for additional amplifiers, which can be modified with the DSP software. Use the included cable set for the connection if necessary.

4 POWER/PROTECT If the POWER LED lights up, the amplifier is ready for operation. If the PROTECT LED lights up, a malfunction is indicated. In this case refer to the chapter TROUBLE SHOOTING.

5 The HIGH LEVEL INPUT (included cable set with plug) can be used, if your head unit is not equipped with RCA pre-amplifier outputs. You can connect then instead the loudspeaker outputs of your head unit with the high level input cable set accordingly (refer to the assignment on the next page right above. Note: Please refer to the information AUTO TURN ON function on page 25, section #2.

⚠ Warning: Never use the HIGH LEVEL INPUT function and the RCA inputs (#1 and #2) at the same time together. This may damage the electronics of the processor.

6 The WiFi-Box currently not supported.

7 Connect the AUX IN (3,5 mm jack) with external audio sources like MP3 player, smartphones, navigation systems and like by using suitable cables.

8 The OPTICAL input is suited for a Toslink cable connection with an external audio source that provides a SPDIF signal (stereo PCM).

9 The REMOTE CONTROLLER port is for the enclosed remote controller. Please refer to the information on the next page.

10 If necessary, connect the mini-USB port by using the enclosed USB cable to the computer on which the X-CONTROL software is installed. The connection can be released after using the DSP software.

Do not extend the cable in any way with a passive USB extension because otherwise a flawless communication between the DSP amplifier and the PC can not be ensured. If you have to bridge longer distances, use an active USB extension with integrated repeater.

The LED next to the USB port lights up blue when a connection between DSP device and computer is made via the USB cable.

FUNCTIONAL INSTRUCTIONS

ASSIGNMENT

CABLE SET HIGH LEVEL AUDIO INPUTS

1) BROWN/BLACK SUB R -
2) BROWN SUB R +
3) ORANGE/BLACK SUB L -
4) ORANGE SUB L +
5) PURPLE/BLACK REARR -
6) PURPLE REAR R +
7) GREEN REAR L +
8) GREEN/BLACK REAR L -
9) GREY FRONT R +
10) GREY/BLACK FRONT R -
11) WHITE FRONT L +
12) WHITE/BLACK FRONT L -

ASSIGNMENT

CABLE SET LOW LEVEL AUDIO INPUTS WITH 4 RCAS

H+) BROWN Channel H +
H-) BROWN/BLACK Channel H-
G+) ORANGE/BLACK Channel G +
G-) ORANGE Channel G -
F+) PURPLE/BLACK Channel F +
F-) PURPLE Channel F-
E+) GREEN Channel E +
E-) GREEN/BLACK Channel E-

REMOTE FEATURES AND OPERATIONAL CONTROLS

1 With this knob the overall volume of the sound system can be controlled. If you press and hold the knob for 3 seconds, the bass level of output SUB OUT (G / H) can also be controlled.
2 The LED display shows the values when turning the knob (# 1) or the number of the selected settings.
3 With the two MODE buttons you can choose between the settings, which are stored in the DSP. Use the buttons ▲▼ to select the desired setting and confirm with OK (# 3).
4 With the INPUT button you are able to switch between the signal inputs of the audio sources MAIN, AUX IN and OPTICAL. MAIN is the input LINE IN (Page 6, #1) and SUB IN (Page 6, #2) or HIGH LEVEL INPUT (Page 6, #5) if selected. WiFi is currently not supported.

Important note: If the remote control is not connected, the amplifier works with setting 1 and no settings can be saved.

FUNCTIONAL INSTRUCTIONS

INSTALLATION OF THE DSP SOFTWARE

1. The DSP software X-CONTROL 2 is suitable for all computers with a Windows™ operating system newer than XP and a USB port. The installation requires approximately 25 MB of free space. Due to the principle it should be used with a portable laptop computer.
2. After downloading the X-CONTROL 2 software at http://www.audiodesign.de/dsp, unpack the downloaded “.rar” file with a suitable software such as WinRAR on your PC.
3. Important Note: First, run a "MCU Upgrade" on your DSP device to run X-CONTROL 2 with it. Connect your DSP device via USB cable to the PC on which you have installed X-CONTROL 2. Then, start the "McuUpgrade.exe" file in the "MCU Upgrade" folder of the previously unzipped file. After the start, you do not have to do anything until the update in the terminal window is finished. Then you can close the window.
4. Now you can install X-CONTROL 2 on your PC. To do this, start the "setup.exe" of the previously unzipped file. The installer will guide you through the usual steps. It is recommended to create a desktop shortcut (Create a desktop icon). After the installation, the computer should be restarted.

⚠️ Important note for 64 bit operating systems: For 64-bit operating system, you may need to install the 64 bit device drivers manually. You can find the drivers in the unzipped folder too. For 32-bit operating systems, the driver will be installed automatically during the program installation.

PROCESSOR CONFIGURATION WITH THE SOFTWARE

Connect the computer on which you have installed the X-CONTROL software with the DSP processor via the enclosed USB cable. After connecting the devices, start the program on the computer.

After starting the program the start screen appears. Select on the bottom right under Select Device your device QE80.4 DSP with the mouse.

Demo Mode (OffLine-Mode)

You can start X-CONTROL even without connecting to the DSP processor in an offline mode and become familiar with the features of the software.

Enable the connection with the DSP in the RS232 Setting. The COM interface should be automatically detected and selected, it varies from system to system. Click then Connect. The program starts then automatically the connection.

If you cannot continue after selecting Connect, follow the instructions in the chapter trouble shooting section on page 29.

⚠️ Note: The COM port is automatically assigned by the Windows operating system. Please ensure that the port must be between COM1 and COM9.

FUNCTIONAL INSTRUCTIONS

Click on Click here to test to check the connection with the DSP device.

If the test was performed successfully 4 checkmarks in the check boxes appear. Then press "[OK] Click here to start" to continue.

Should one of the checkmarks not appear, a problem occurred that can lead to a malfunction. Please refer to the following instructions.

Error:

„ERROR“ message in connection between DSP device and your computer

Reason 1:

The DSP device is in PROTECT mode (protection circuit) or turned off.

Note: The POWER LED and the USB LED must light up blue.

Remedy:

Correct the cause

Reason 2:

The „MCU Upgrade“ on DSP device (see previous page), was not performed correctly or not.

Remedy:

Run the „MCU Upgrade“ again.

Error:

„The COM port could not open...“ message in connection between DSP device and your computer

Reason:

In the connection window after the software start the wrong COM port has been selected or defined.

Remedy:

Select the correct port. Check if necessary the port in the Device Manager of Windows under „Ports (COM & LPT) „USB-Serial CH340“.

The entry can be found at:

Settings > Control Panel > Administrative Tools > Computer Management

Device Manager > Ports (COM & LPT)

FUNCTIONAL INSTRUCTIONS

USER INTERFACE OF THE SOFTWARE

Here you can make countless settings and adapt them to your sound system, which can be heard immediately in real time via the DSP device. As soon as you are finished configuring a setting, it can be transferred to one memory locations in the DSP device. You can store up to 10 different settings and select the remote control at any time during operation. The following section explains the various functions of the X-CONTROL 2 user interface.

1 LINK TO DEVICE: Connects the PC via USB to the DSP device.
2 Channel Setting": Opens a dialog box where you can select the configurations for your desired sound system.

There you can freely define the assignment of the inputs (INPUT) and outputs (OUTPUT) per channel on the DSP device.

In „SPEAKER TYPE“, you can select the desired speaker for each channel. This means that the appropriate parameters are already preset at the respective channel, and you only have to perform the fine adjustment.

„MIX“ must be selected when using the high level inputs on the DSP device. The audio signal is summed.

Under „2CH“, „4CH“ or „6CH“ (input assignment), you can select an already preset sound system variant, which you can set beforehand. All you have to do is make the fine adjustment.

3 Open: Opens a previously saved setting on the PC.
4 Save: Saves a setting in a file on the PC with the current filename used. If no file name has been selected before, you can specify any filename in the following dialog.
5 SaveAs: Saves the setting under a different filename, which you can specify in the following dialog.
6 Factory Setting: Resets all settings to the factory default.

FUNCTIONAL INSTRUCTIONS

7 Under „PRESETS ON THE DEVICE“, you can read, delete or assign the memory locations (POS1 - POS10) for the individual settings on the DSP unit. First select the memory location ((POS1 - POS10), because you want to edit or read out.

WRITE*: Saves the currently created setting in the DSP device to the previously selected memory location.

READ*: Reads the previously selected memory location from the memory of the DSP device.

DELETE*: Deletes the previously selected memory location from the memory of the DSP device.

Note: Always store the settings numerically (POS 1, POS 2, POS 3, ...) so that they can be accessed with the remote control. There should be no memory location left unoccupied, otherwise the following settings can not be called up.

*Important: The enclosed remote control must be connected to the DSP device.

8 Under „SOURCE“, you can select between the input sources SPDIF (optical input), MAIN (RCA/Cinch audio inputs), AUX (RCA/RCA stereo input) and WiFi (optional).

9 Under „CHANNEL SETTING“ you can link the respective channel pairs for L and R with the lock symbol in the middle to synchronize the settings for both channels. With „L > R COPY“ you can also copy the setting of the currently selected left channel to the right channel.

10 „SLOPE“ allows you to specify the slope of the highpass (HP) or lowpass filter (LP) on the currently selected channel, which can be selected from 6dB per octave (very flat) to 48dB per octave (very steep) in 6dB steps.

Note: The HP or LP control panel is inactive (gray) when under CROSSOVER HP, LP, or BP is not selected accordingly.

11 Under „CROSSOVER“ you can define the desired filter type (OFF, HP, BP or LP) on the currently selected channel. The frequency of the filters can be adjusted with the controllers next to HP and LP. The controllers are only active when the filter is activated. Once a filter type has been selected, the filter is displayed graphically in the frequency band preview.

Note: When the filter is selected, the cut-off frequency can also be changed directly in the frequency band preview with the mouse. Click and hold the point on the dividing line and move the mouse to the desired location on the frequency band.

Hint: Instead of the slider, you can also enter the cut-off frequency directly by double-clicking on the values next to it with the keyboard. Press ENTER to confirm.

12 Under „MAIN“ at „GAIN“ you can set the output volume (-40dB to + 12dB) of the DSP device. Caution: Use this knob carefully. Too loud a level could damage your speakers.

With „MUTE“, you can switch the mute function on and off.

13 Under channel sections A to H, you can make the following settings for the selected channel:

• With „GAIN“ you can reduce the level from 0dB to -40dB.
• Use the „MUTE“ button to mute the channel.
• With „PHASE“ you can switch the phase from 0° to 180°.
• With „DELAY“ you can set a delay time correction of the signal. See „TIME ALIGNMENT“ on the next page.
• By clicking on the „CM“ box, the „DELAY“ unit can be switched from centimeter (cm) to millisecond (ms).

With the „PHASE“ and „DELAY“ parameters, you can adjust the sound system optimally to your vehicle acoustics and make a perfect fine adjustment of the acoustic stage.

14 The frequency band preview shows graphically the envelope of the 31-band equalizer as well as the settings currently selected under "CROSSOVER" of the respective selected channel. There, you can also change the respective values as you like by moving the breakpoints of the respective parameters displayed.
In the parametric 31-band equalizer (channel A - F) the desired dB value can be set in the currently selected channel (-18 to +12) between 20 Hz and 20000 Hz with the faders. For subwoofer channels (channel G & H), the 11-band equalizer can be set between 20 Hz - 200 Hz.

Below the individual controls the EQ quality can be entered under “Q” by numerical value (0.5 for very flat - to 9 for very steep). The desired numerical value for the parametric equalizer can be entered in the input boxes F(Hz).

"BYPASS" switches the equalizer function on or off.

With "RESET" you reset all settings of the equalizer (all other parameters are not affected).

With "COPY EQ" you can copy the entire settings of the equalizer and paste it with "PASTE EQ" to another channel.

FUNCTIONAL INSTRUCTIONS

In the „TIME ALIGNMENT“ section you have the possibility to calculate the run-time correction of the individual channels by X-CONTROL 2, to optimally align the sound system and the DSP device to the acoustic stage center. To do this, follow these steps:

• First measure the distance of all loudspeakers of the sound system to the acoustic stage center (for example, the driver's seat at the ear level of the driver).
• Then enter the measured distance values under „TIME ALIGNMENT“ for each channel in the corresponding input field in centimeters (CM).
• When you have entered all the distance values, press "DelayCalc". X-CONTROL 2 then calculates the appropriate parameters and transfers them automatically to the respective channel from A to H. Then you can fine-tune the channel sections with the "Delay" slider.
• With "Reset" you can reset all values.
• With the loudspeaker symbol in each channel you can mute the respective channel.

17 Under „REMOTE SETTING“ you are able to select, with which channel pair (EF Channel or GH Channel) you want to control the bass level with the connected remote controller. Therefore, always select the channel pair, on which you have connected the subwoofer.

SPECIFICATIONS

MODEL	QE80.4 DSP
CHANNELS	4
CIRCUIT	CLASS D Digital
OUTPUTPOWER RMS 13,8 V
Watts @ 4 / 2 Ohms	4 x 80 / 125
Watts bridged @ 4 Ohms	2 x 250
OUTPUTPOWER MAX. 13,8 V
Watts @ 4 / 2 Ohms	4 x 160 / 250
Watts bridged @ 4 Ohms	2 x 500
Frequency Range -3dB	5 Hz - 20 kHz
Damping Factor	>100
Signal-to-Noise Ratio	>90 dB
Channel Separation	>60 dB
THD&N	0,05%
Input Sensitivity	4 - 0,3 V
Input Impedance	>47 kOhm
DSP Processor	Cirrus Logic Single Core 32 bit, 8-Channel, 192 kHz
Low Level Audio Inputs RCA	FL / FR / RL / RR / SUB L / SUB R
High Level Audio Inputs via Cable Set	FL / FR / RL / RR / SUB L / SUB R
Low Level Audio Outputs RCA via Cable Set	E (CH 5) / F (CH 6), G (CH 7) / H (CH 8)
Additional Inputs	TOSLINK (optical 12 ~ 96 kHz, stereo)AUX (3,5 mm jack, stereo)
Auto Turn On Function	Only via High Level InputsWhile using, a + 12V turn on signal for additional devices is provided to the REM socket
X-CONTROL 2.0.3 DSP-Software	for Microsoft WindowsTMXP SP3, Vista, 7, 8, 8.110 Presets, Gain -40 ~ +12dB6 x 31-Band Equalizer, 2 x 11-Band Equalizer, -18 ~ 12 dB, Q 0,5 ~ 9Setting range 20 ~ 20.000 Hz (Outputs A-F), 20 ~ 200 Hz (Outputs G-H)6 ~ 48 db/Oct. HP/BP/LPTime Delay 0~15 ms/0~510 cmPhase Shift 0°/180°
Remote Controller with LED-Display	for Master Volume, Subwoofer Volume,Input Selection, Mode Selection
Fuse Rating	2 x 35 A (internal)
Dimensions (Width x Height x Length)	165 x 46 x 255 mm

Technical specifications are subject to change! Errors are reserved!

TROUBLE SHOOTING

Malfunction: no function

Reason:

1. The power supply connection of the device is not correct Recheck
2. The cables have no mechanical or electrical contact Recheck
3. The remote turn-on connection from the head unit to the amplifier is not correct
4. Defective Fuses. In case of replacing the fuses, ensure the correct fuse rating

Remedy:

Malfunction: no signal on loudspeakers, but power LED lights up

Reason:

1. The connections of the speakers or the RCA audio cables are not correct Recheck
2. The speaker cables or the RCA audio cables are defective Replace cables
3. The loudspeakers are defective
4. HP controller in LP/BP operation is adjusted to high Turn down controller
5. No signal from the head unit Check head unit settings
6. A wrong input source under INPUT SOURCE is selected, which is not connected (e.g. AUX IN) Check selection
7. For example on one or more channels „Mute“ is activated in the DSP software. Check settings
8. The volume level on the remote controller is adjusted too low Turn up the volume level on the remote

Remedy:

Replace

Malfunction: one or more channels or controllers are without function / faulty stereo stage

Reason:

1. The balance or fader controller of the head unit is not in the center-position Turn to center-position
2. The connections of the speakers are not correct Recheck
3. The loudspeakers are defective
4. HP controller in LP/BP operation is adjusted to high Turn down controller
5. For example on one or more channels „Delay“ or „Phase“ is incorrectly set in the DSP software.

Remedy:

Replace

Check settings

Malfunction: distortions on the loudspeakers

Reason:

1. The loudspeakers are overloaded Turn down the level

Remedy:

Turn down
Switch off loudness
Reset bass
on

Malfunction: no bass or stereo sound

Reason:

1. Interchange of loudspeaker cable polarity Reconnect
2. The RCA audio cables are loose or defective Reconnect or replace the cables
3. For example on one or more channels „Delay“ or „Phase“ is incorrectly set in the DSP software.

Remedy:

Check settings

Malfunction: amplifier runs into protection mode (red protection LED lights up)

Reason:

1. Short circuit on the loudspeakers or cables Reconnect
2. Overheated by too low speaker impedance Choose a higher impedance

Remedy:

Use a new speaker
Change the mounting position
Ensure air circulation
Use a bigger profile section

1. Insufficient air circulation by a inappropriate mounting position of the amplifier

2. Overloaded by insufficient power supply (too small profile section on the power cables)

Malfunction: hiss or white noise on the loudspeakers

Reason:

1. The level controllers in the DSP software are turned up to loud
2. The treble controller on the head unit is turned up
3. The speaker cables or the RCA audio cables are defective Replacing the cables
4. The hissing is caused by the head unit Check the head unit

Remedy:

Turn down the level Turn down the level on the head unit

TROUBLE SHOOTING

Malfunction: no subwoofer sound

Reason:

1. The volume of the subwoofer output (channel G / H and SUB OUT) is set too low on the remote control.

Remedy:

Press the remote controller

and

(Refer

hold.

to

Turn

page

Malfunction: „ERROR“ message in connection between DSP device and your computer

Reason:

1. The DSP amplifier is in PROTECT mode (protection circuit) or turned off. Note: The POWER LED and the USB LED must light up blue.

Remedy the cause

Remedy:

Malfunction: „The COM port could not open...“ message in connection between DSP device and your computer

Reason:

1. In the connection window after the software start the wrong COM port has been selected or defined. The selected port must be between COM1 and COM9. Check if necessary the port in the

Remedy:

Select the correct port.

Device

„Ports

„USB-Serial

Manager

(COM

CH340".

of

Malfunction: The stored settings can not be called up on the remote control via mode button

Reason:

1. The settings must be saved numerological (POS1, POS2, POS3, ...)

Save the settings always numerological

Remedy:

(Refer

to

page

TROUBLE SHOOTING

ELECTRICAL INTERFERENCES

The reason for interferences are mostly the routed cables and wires. Especially the power and audio cables (RCA) of your sound system are vulnerable. Often these interferences are caused by electric generators or other electrical units (fuel pump, AC etc.) of the car. The most of these problems can be prevented by a correct and careful wiring.

Here are some courtesy notes:

1. Use only double or triple shielded audio RCA cables for the connection between the amplifier and head unit. An useful alternative are represented by anti-noise-devices or additional ancillary equipment like Balanced Line Transmitters, which you can purchase at your car audio retailer. If possible do not use anti-noise-filters, which are splicing the ground of the RCA audio cables.
2. Do not lead the audio cables between the head unit and the amplifier together with the power supply wires on the same side of the vehicle. The best is a real separated installation on the left and right cable channel of the vehicle. Then the overlapping of interferences on the audio signal will be avoided. This stands also for the enclosed bass-remote wire, which should not be installed together with the power supply wires.
3. Avoid ground loops by connecting all ground connections in a starlike arrangement. The suitable ground center point is ascertainable by measuring the voltage directly on the vehicle's battery by a multi-meter. You should measure the voltage with turned-on ignition (acc.) and with other turned-on power consumers (e.g. headlights, rear window defroster, etc.), Compare the measured value with the voltage of the ground point you have chosen for the installation and the positive pole (+12V) of the amplifier. If the voltage has just a little difference, you have found a suitable ground point. Otherwise you need to choose an other ground point.
4. Use if possible only cables with added or soldered cable sockets or the like. Gold plated or high value nickel plated cable sockets are corrosion free and own a very low contact resistance.

PROTECTION CIRCUIT

This amplifier owns a 3-way protection circuit. On overloading, overheating, shorted loudspeakers, too low impedance or insufficient power supply, the protection circuit turns off the amplifier to prevent serious damage. If one of this dysfunctions is detected, the red PROTECT LED lights up.

In this case, check all connections to detect short-circuits, faulty connections or overheating. Refer to the notes on the next page.

If the reason for the dysfunction is eliminated, the amplifier is ready for operation again.

If the red PROTECT LED does not stop to light up, the amplifier is damaged. In this case return the amplifier to your car audio retailer with a detailed malfunction description and a copy of the proof of purchase.

WARNING: Never open the amplifier and try to repair it by yourself. This causes a loss of warranty. The repairing service should be made only by skilled technicians.

INSTALLATION AND OPERATION IN NEWER VEHICLES!

In vehicles with a newer year of manufacturing (since approx. 2002), normally computer controlled diagnosis- and controlling systems are applied - like CAN-BUS or MOST-BUS interfaces. With the installation of a car audio amplifier a new appliance will be added to the 12V on-board electrical system, which may cause under several circumstances error messages or may interrupt the factory made diagnosis system, as a result of high stress peaks and a higher power consumption. Thus, depending on model and manufacturer, the driving safety or important security systems like air bags, ESC or others could be interrupted.

If you plan to operate the amplifier in a vehicle like described above, please follow these instructions:

• Let the installation be made only by a skilled specialist or a service station, which is specialized for the maintenance of your vehicle.
• After the installation, we suggest to make a computer diagnosis of the on-board system, to detect possible malfunctions or errors.
• If the on-board system is interfered by the installation of the amplifier, an additionally installed power capacitor can stabilize the electrical on-board system to ensure a proper and stable operation.
• The best solution is the integration of an own additional 12 V electrical system for the sound system, which can be operated independently with an own battery supply.

CONSULT YOUR CAR SPECIALIZED SERVICE STATION!

NOTES

NOTES

NOTES

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