ESX VISION VE900.7SP Class D 7-Channel Amplifier Owner’s Manual

ESX VISION VE900.7SP Class D 7-Channel Amplifier

Specifications

• Model: VE 900.7SP
• Class: D 7-Channel Amplifier with Digital Full HD Audio
• Signal Processor: 8-Channel
• Bluetooth Version: 5.0
• Frequency Range: 2.400 MHz – 2.484 MHz
• Max. Power Output: 30.0 dBm
• Power Output: 5 x 100 Watt/RMS @ 4/3 Ohm + 2 x 200 Watt/RMS @ 2 Ohm
• Frequency Response: 5 ~ 45,000 Hz
• Signal-to-Noise Ratio: 106 dB
• THD: 0.005% @ 1 Watt/RMS, 0.003% @ 5 Watt/RMS
• Operating Voltage: 7.5 ~ 17 V

Product Usage Instructions

Safety Instructions

• Always replace fuses with the correct ampere rating to prevent fire or electric shock.

Mechanical Installation

• Ensure proper installation of the product in the vehicle chassis following the specified guidelines.

Connecting Power Input

• Connect the +12V / GND power input to a power source with an ampere rating of 80 A and limited power input to a source with 50 A within a distance not exceeding 30 cm.

DSP Function Setup

• Download the ESX DSP Toolkit software from www.esxaudio.de/dsp for adjusting DSP functions via a USB connection compatible with USB 1.1/2.0/3.0.

Level Input Adjustment

• Adjust the input sensitivity using the LEVEL INPUT controls by starting at the MIN position and adjusting as needed.

Initial System Setup with PC/Laptop

1. Download and install ESX DSP Toolkit software on your computer.
2. Adjust the speaker system, input configuration, and audio parameters using the software.
3. Save settings in one of the 8 presets available.

Initial System Setup with App

1. Download the ESX DSP Toolkit App from the App Store or Google Play.
2. Adjust the speaker system, input configuration, and audio parameters using the app.

Frequently Asked Questions

Q: How do I adjust the input sensitivity of the amplifier?

A: You can adjust the input sensitivity using the LEVEL INPUT controls by following the provided instructions in the manual.

Q: What is the recommended power source for the amplifier?

A: The recommended power input includes +12V / GND with an ampere rating of 80 A and limited power input with a rating of 50 A within a maximum distance of 30 cm.

GENERAL INFORMATION

SCOPE OF DELIVERY

• 1 x VE900.7SP Amplifier
• 1 x Wire Harness with 14-pin Connector for LOW-LEVEL INPUT
• 1 x Wire Harness with 4-pin Connector for EXT. FAN +12V, MODE PRESET SWITCH, REM IN, REM OUT
• 1 x Wire Harness with 12-pin Connector for HIGH-LEVEL INPUT
• 1 x Wire Harness with 10-pin Connector for SPEAKER OUTPUT
• 1 x Wire Harness with 8-pin Connector for SPEAKER OUTPUT, LIMITED POWER INPUT
• 1 x USB Cable, Length 5 m
• 1 x Bluetooth® Antenna
• 1 x Owner‘s Manual (German/English)

RECOMMENDED ACCESSORIES

RC-DQ
Remote Controller with Display for Volume, Mode, Bass Level, incl. Extension Cable (5 m)

INTENDED USE

• This product is designed for operation in a vehicle with an onboard voltage of +12 V with negative ground.
• The device functions as an amplifier of audio signals as well as a digital audio processor used to modify audio signals within a sound system in a vehicle.

RADIO EQUIPMENT TYPE

Function| Band information| Frequency range| Maximum radiated power
---|---|---|---
Bluetooth| Version 5.0| 2.400 MHz – 2.484 MHz| 30,0 dBm0

DECLARATION OF CONFORMITY

• Audio Design GmbH hereby declares that the ESX VE900.7SP device complies with Directive 2014/53/EU.
• The full declaration of conformity can be viewed at www.esxaudio.de/ce.

Distributor:

• Audio Design GmbH
• Am Breilingsweg 3, DE-76709 Kronau (Germany)

TECHNICAL SPECIFICATIONS

Amplifier| Class D

5 x 100 Watts/RMS @ 4/3 Ohms

+ 2 x 200 Watts/RMS @ 2 Ohms

---|---
DSP Chip| Analog Devices™

32 Bit, 294 Mhz, 48 Channels

1.2 Billion MAC Operations per Second Sampling Rate 96 kHz / Full HD Audio

DSP Control| ESX DSP Toolkit

PC Software for Microsoft® Windows™ 10 or newer App for iOS™/Android™ Mobile Devices

8 Presets for Sound Setups

DSP Audio Features| Crossovers HP/LP/BP @ 6-48 dB Slope Time Delay 0 ~ 20 ms / 0,01 ms Steps Master Gain 0 ~ 60 dB

Channel Gain –20 ~ +6 dB Phase Shift Normal/Invert Input Mixer, Subwoofer Control

8 x 31-Band Output Equalizer (PEQ/HSLF/LSLF) +/- 12 dB, 0.5 dB Steps Standard Mode:

8 x 15-Band Input Equalizer (PEQ/HSLF/LSLF) +/- 12 dB, 0.5 dB Steps Expert Mode:

4 x 30-Band Input Equalizer (PEQ/HSLF/LSLF) +/- 12 dB, 0.5 dB Steps

Signal Converters| AKM® Velvet Sound™ A/D 32 Bit

D/A 32 Bit

Frequency Response| 5 ~ 45.000 Hz
Signal-to-Noise Ratio (A-weighted)| 106 dB
THD| 0,005% @ 1 Watts/RMS

0,003% @ 5 Watts/RMS

Operation Voltage| 7.5 ~ 17 V
Inputs| 6 x RCA Balanced Audio Input (via Molex Plug) 6 x High Level Speaker Input (via Molex Plug) 1 x Optical stereo, S/PDIF 192 kHz, 24 bit

1 x Bluetooth® stereo

1 x USB Type Mini B for PC Software 1 x RJ45 for Remote Extension

1 x Socket incl. REM IN/OUT, Mode Preset Switch, Ext. Fan +12V

Input Sensitivity| Low Level 500 mV ~ 6 V

High Level 2 ~ 15 V or 15 ~ 40 V (switchable)

Input Impedance| Low Level 10 kOhms

High Level 10/150/600 Ohms (switchable)

Outputs| 5 x Amplified Speaker Output (via Molex Plug)

2 x Amplified Speaker/Subwoofer Output (via Molex Plug) 1 x Subwoofer Output (RCA via Molex Plug)

Auto Turn-On| DC / VOX / OFF
Special Features| Error Protection System EPS PRO Preset Auto Switch

Priority Input Mode Detection

Bluetooth® Receiver| Integrated for App Control and Audio Streaming, incl. Antenna
Dimensions (L x H x W)| 250 x 50 x 150 mm

IMPORTANT NOTE: External Fuses incl. Fuse Holder required!
Technical changes and errors are reserved. All trademarks, trade names, or brands are the property of their respective owners.

SAFETY INSTRUCTIONS

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

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

• ADJUST THE SOUND VOLUME TO AN APPROPRIATE LEVEL, SO 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. Permanent listening to extremely loud music may cause the loss of your hearing abilities. The hearing of extremely loud music while driving may derogate your cognition of warning signals in traffic. In the interests of common safety, we suggest driving with a lower sound volume. Otherwise, the risk of accidents decreases.

• 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 consist. Also, this may cause a loss of the warranty.

• REPLACE FUSES ONLY WITH FUSE WITH THE SAME RATING. Otherwise, fire hazards and the risk of electric shock are.
  DO NOT USE THE DEVICE ANY LONGER, IF A MALFUNCTION OCCURS, WHICH REMAINS NOT REMEDIED. Refer in this case to the chapter TROUBLE SHOOTING. Otherwise, the risk of injury and damage to the device increases. Commit the device to an authorized retailer.
  INTERCONNECTION AND INSTALLATION SHOULD BE ACCOMPLISHED BY SKILLED STAFF ONLY. The interconnection and installation of this device demands technical aptitude and experience. For your safety, commit the interconnection and installation to your car audio retailer, 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 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 occur 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 damage in the passenger room.

• ENSURE CORRECT CONNECTION OF ALL TERMINALS. Faulty connections could cause fire hazards and lead to damage to the device.

• 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 damage 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.

• 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 processor together with the power supply wires on the same side of the vehicle. The best is an areal-separated installation in the left and right cable channels of the vehicle. Therewith 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 ARE NOT CAUGHT UP IN CLOSE-BY OBJECTS. Install all the wires and cables as described on the following pages, therewith these may not hinder the driver. Cables and wires that are installed close by the steering wheel, gear lever, or brake pedal, may be 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 therefore an appropriate distribution block. Otherwise, fire hazards and risk of electric shock consist.

• 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 hazards or 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 to movable objects like the seat rail which may be 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 increases. Consult promptly a medical doctor, if a child swallowed a small object.

DISPOSAL

ELECTRICAL AND ELECTRONIC DEVICES – INFORMATION FOR PRIVATE HOUSEHOLDS

• The Electrical and Electronic Equipment Act (ElektroG) contains a large number of requirements for handling electrical and electronic equipment.
• The most important requirements are summarized here.

1. Separate collection of old devices
   Electrical and electronic equipment that has become waste is referred to as waste equipment. Owners of old devices must collect them separately from unsorted municipal waste. In particular, old devices do not belong in household waste, but in special collection and return systems.

2. Batteries and accumulators, as well as lamps Owners of old devices, must usually separate old batteries and accumulators that are not enclosed by the old device, as well as lamps that can be removed from the old device without destroying them, before handing them in at a collection point. This does not apply if old devices are prepared for reuse with the participation of a public waste disposal authority.

3. Possibilities of returning old devices

   • Owners of old devices from private households can hand them in free of charge to the collection points of the public waste disposal authorities or the take-back points set up by manufacturers or distributors within the meaning of the ElektroG.
   • Shops with a sales area of at least 400 m² for electrical and electronic equipment and those grocery stores with a total sales area of at least 800 m² that offer electrical and electronic equipment several times a year or permanently and make it available on the market are subject to the obligation to take back. This also applies to sales using long-distance means of communication if the storage and shipping areas for electrical and electronic equipment are at least 400 m² or the total storage and shipping areas are at least 800 m². In principle, distributors must ensure that they are taken back by providing suitable return options at a reasonable distance from the respective end user.
   • The possibility of returning an old device free of charge exists in the case of distributors who are obliged to take it back, among other things, if a new device of the same type that essentially fulfills the same functions is handed over to an end user. If a new device is delivered to a private household, the old device of the same type can also be handed over there for collection free of charge; This applies to sales using means of distance communication for devices in categories 1, 2, or 4 under
   • Section 2 (1) ElektroG, namely “heat exchangers”, “display screen devices” or “large devices” (the latter with at least one external dimension of more than 50 centimeters).
   • End users are asked about a corresponding return intention when concluding a purchase contract. There is also the option of returning old devices that are no larger than 25 centimeters in any external dimension to the distributors’ collection points free of charge, regardless of the purchase of a new device, limited to three old devices per type of device.

4. Privacy Notice

   • Old devices often contain sensitive personal data. This applies in particular to information and telecommunications technology devices such as computers and smartphones.
   • In your interest, please note that each end user is responsible for deleting the data on the old devices to be disposed of.

5. Meaning of the “crossed-out” wheeled bin symbol The symbol of a crossed-out garbage can, which is regularly shown on electrical and electronic devices, indicates that the device in question must be collected separately from unsorted municipal waste at the end of its service life.

MECHANICAL INSTALLATION

• First, find a suitable installation location for the device. Make sure that there is enough space for the installa-tion of the cables that they are not kinked and that there is sufficient strain relief.
• Make sure that the amplifier receives sufficient cooling at the mounting location. Do not install the device in too small, closed housings without air circulation, in the vicinity of heat-emitting parts or electronic controls of the vehicle.
• Never mount the amplifier on a bass enclosure or other vibrating parts, as this may cause the internal com-ponents to vibrate and seriously damage the unit.
• The power supply and audio signal cables should be kept as short as possible during installation to avoid losses and interference.
• Remove the four cover screws on the corners of the device. Then use standard self-tapping screws (not in-cluded in the scope of delivery) to screw the device into the four mounting holes at the installation location.
• During installation, make sure that no parts that are standard in the vehicle, such as cables, onboard computers, seat belts, tanks, or similar parts, are damaged or removed.
• CAUTION Before you start with the installation, disconnect necessarily the GROUND connection wire from the battery to avoid any risk of electric shocks and short circuits.

ELECTRICAL CONNECTIONS

BEFORE CONNECTING

• For the professional installation of a sound system, car audio retail stores offer appropriate wire kits. Ensure a sufficient cross-section of at least 16 mm2, a 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. Do not set in the fuse until the installation is accomplished.

1. POWER INPUT +12V (recommended)
   • Connect the 12-volt connection of the amplifier to the 12-volt positive pole of the vehicle battery using the cable provided with a cross-section of at least 16 mm2.
2. POWER INPUT GND (recommended)
   • Connect the amplifier‘s GND connection to a suitable ground point on the vehicle chassis. The ground wire should be as short as possible and attached to a bare metal point on the vehicle chassis.
   • Ensure that this point has a secure electrical connection to the vehicle battery negative terminal. Also, check the ground wire from the battery to the body and strengthen it if necessary.
   • Use a cable with a cross-section of at least 16 mm2 for the connection.
3. LIMITED POWER INPUT
   • If, for installation-related reasons, you use the enclosed 8-pin wire harness to supply the amplifier with power, the output power of the amplifier will be reduced by around 20%.
   • Alternatively, the two power inputs can also be used as an additional power supply to the regular POWER INPUT. Each of the two pairs of pins can be loaded with a maximum of 25 A.
4. REM IN
   • Connect a turn-on signal or the turn-on remote signal of your head unit (REM) with the REM IN terminal.
   • Use therefore a suitable cable with a sufficient cross-section (recommended Ø 0,5 mm2). Hereby the device turns on or off with your head unit.
   • If you use the AUTO TURN-ON function (refer to page 27, section 17), the REM IN terminal does not need to be connected.
   • REM OUT
   • If a turn-on signal cable is connected to REM IN or the AUTO TURN-ON function is used, a turn-on signal cable can be connected to REM OUT to switch on other devices.
   • MODE PRESET SWITCH
   • The MODE connection is suited to switch between two presets of the DSP (Preset Auto Switch function). As soon as a ground signal (GND) is supplied at MODE, the device switches automatically from Preset DEFAULT to Preset MODE or back again.
   • This is useful if you operate the device in a convertible/ cabriolet and connect the MODE terminal with the ground signal (GND) of the electric roof. The devices are now switching between Preset DEFAULT (closed roof setup) and Preset MODE (open roof setup).
   • EXT. FAN +12V
   • The EXT. FAN +12V connection allows you to control external fans to cool the amplifier if you install it in an enclosed space or behind a cover with insufficient airflow.
5. DEVICE FUSE (Not included)
   • To protect the amplifier, an external fuse must be installed no further than 30 cm from the device in the +12 V power supply cable. Please note the information below.
   • RECOMMENDED FUSE VALUES
   • We generally recommend the use of ANL fuses and high-quality fuse holders.
   • The following fuse ratings apply to both the device fuse and the power supply cable fuse:
   • +12V / GND POWER INPUT: 80 A
   • LIMITED POWER INPUT: 50 A
6. ADDITIONAL CABLE FUSE (Not included)
   • Install an extra fuse for the power supply cable near the battery. The distance between the fuse and the battery should not be more than 30 cm. Please note the information below.
   • IMPORTANT: The fuse on the battery does not protect the amplifier, but rather the cable between the battery and the amplifier against short circuits.
   • NOTE Only replace defective fuses with new fuses that are of the same type and have the same fuse rating.
   • CONNECTIONS & FUNCTIONAL DESCRIPTION
7. RESET
   • In case of a malfunction or a software crash, press this button with a suitable object such as a pen or a needle to reset the device.
8. ANTENNA
   • This connection is intended for the enclosed Bluetooth® antenna. Screw in the antenna firmly and align it upwards.
9. PC USB
   • This USB input is suited for the connection with a PC/laptop computer to manage the functions of the ESX DSP TOOLKIT software to set up the DSP functions. The connection is USB 1.1/2.0/3.0 compatible.
   • To download the software please visit www.esxaudio.de/dsp.
10. OPTICAL IN
    • This input accepts PCM stereo signals up to a sampling rate of 192 kHz / 24 bit. Multi-channel signals coming from audio/video sources (such as the audio tracks of DVD movies) can not be reproduced.
    • Connect a fiber optic cable with a TOSLINK connector.
11. REMOTE
    • This port is for the extension cable of the optionally available remote controller ESX RC-DQ.
12. LOW-LEVEL INPUT
    • Slot for the included wire harness with a 14-pin connector. Connect the wiring harness RCA input jacks to the appropriate head unit preamp outputs using appropriate audio signal cables.
    • SUB OUT
    • There is also a mono RCA output socket for an external subwoofer amplifier on the included wire harness.
    • Depending on the DSP setting, this supplies a modified low-level audio signal.
13. HIGH-LEVEL INPUT
    • Slot for the included wire harness with a 12-pin connector. If your head unit does not have RCA preamplifier outputs, you can use the high-level inputs as signal inputs.
    • To do this, connect the speaker cables of the head unit to the corresponding cable ends of the wire harness connector.
    • To change the input sensitivity and input resistance of the high-level inputs, please refer to sections 18 to 20.
14. SPEAKER OUTPUT (MINIMUM IMPEDANCE 3 – 8 OHMS, NOT BRIDGEABLE)
    • Slot for the included wire harness with a 10-pin connector. Connect the speaker wires from the wire harness to the corresponding connector wires on the speakers. Use sufficiently dimensioned speaker cables for this.
15. STATUS LED
    • If the POWER LED lights up, the device is ready for operation.
    • If the ERROR LED lights up, there is a malfunction.
    • In this case, press the reset button (see section 7)
    • If the BT LED lights up, a Bluetooth connection has been established.
16. SPEAKER OUTPUT (CH10 / CH11 – MINIMUM IMPEDANCE 2 – 8 OHMS, NOT BRIDGEABLE)
    • Slot for the enclosed wire harness with an 8-pin connector. Connect the speaker wires from the wiring harness to the corresponding connector wires on the subwoofer. Use sufficiently dimensioned speaker cables for this.
    • THE FOLLOWING SWITCHES AND CONTROLLERS ARE LOCATED ON THE REAR UNDER THE COVER WHICH YOU CAN REATTACH AFTER SETUP.
17. AUTO TURN-ON
    • If your head unit does not have a turn-on signal (REM), you can use the automatic turn-on function of the device. This works in two ways, which can be set at the AUTO TURN-ON switch:
    • VOX: Select this method when using the RCA jacks at LOW-LEVEL INPUT. The device then detects a voltage increase in the incoming audio signal when switching on the head unit via the attached RCA cable and then switches on the device.
    • DC: This method only works if you use the device’s high-level inputs at HIGH-LEVEL INPUT. The device then detects a voltage rise to 6 volts when the head unit is turned on by a so-called “DC offset” and then turns on the device.
    • OFF: Select this position, if you have connected a turn-on signal at the REM IN terminal.
    • NOTE PRIORITY INPUT MODE
    • The device detects the arrival of a digital input signal (e.g. via OPTICAL IN, COAXIAL IN, or Bluetooth®).
    • This input signal is then given priority over the analog input signals as long as the signal source is active.
    • You can change this setting via software or app.
18. INPUT VOLTAGE
    • You can use the INPUT VOLTAGE switches to set the input sensitivity of the high-level inputs on the respective channel pair.
    • The following settings are possible:
    • 2-15V: Offered for standard radios and OEM head units.
    • 15-40V: This should be selected if an amplified audio signal is used or if the audio signal is tapped after an OEM factory amplifier.
    • INPUT LOAD
    • All high-level inputs are equipped with EPS PRO (Error Protection System) so that no functions are impaired or error messages are written to the vehicle memory when connected to OEM factory radios.
    • The input resistance of the EPS PRO protection circuit can be adjusted with the INPUT LOAD switch.
    • The following settings are possible:
    • 10R: Recommended for the loudspeaker outputs of a head unit/car radio, if instead of the loudspeakers the amplifier inputs are now connected.
    • 150R: Recommended for factory sound systems from e.g. VW / Audi / Skoda, including those with built-in amplifiers/boosters.
    • 600R: Recommended for factory sound systems from e.g. BMW, e.g. also with a built-in amplifier/booster or if the high-level input is operated in parallel with a loudspeaker.
19. LEVEL INPUT
    • With the LEVEL INPUT controllers, the input sensitivity of the respective channel pair can be leveled and adjusted accordingly. The following information should be observed:
    • Turn all LEVEL INPUT controls counter-clockwise to the MIN position.
    • IMPORTANT: From now on, be sure to observe the information on the “First system start” on the next two pages to carry out the basic setup of the DSP on the PC/laptop or via app via smartphone.
    • To do this, follow the instructions in the ESX Toolkit Quick Start Guide starting on Go to the ESX DSP portal at: www.esxaudio.de/dsp
    • To fine-tune the input sensitivity of each channel pair, turn the respective LEVEL INPUT controller clockwise toward MAX until slight distortions are heard from the speakers. Then slowly turn the LEVEL INPUT control back a bit until the distortions are no longer audible.
    • You can also see the correct input level of the respective channel pair on the meter display in the PC software and set it there exactly.

FIRST SYSTEM STARTS WITH A PC / LAPTOP

Recommended specifications:

• CPU: 1.6 GHz or higher
• Memory: 1 GB or higher
• HDD: 512 MB or more available space
• Display: 1024×576 or higher
• OS: Microsoft™ Windows 10 or higher
• CAUTION Before turning on the sound system, check again carefully the configuration of the crossovers and the speakers’ setup.
• A wrong type of crossover or inappropriate parameters may cause permanent damage to the speakers, especially tweeters without passive crossovers.

FIRST SYSTEM STARTS WITH THE APP

ESX DSP TOOLKIT APP:

• App Store: iOS™ smartphones and mobile devices
• Google Play: Android™ smartphones and mobile devices
• CAUTION Before turning on the sound system, check again carefully the configuration of the crossovers and the speaker’s setup.
• A wrong type of crossover or inappropriate parameters may cause permanent damage to the speakers, especially tweeters without passive crossovers.

TROUBLESHOOTING

ATTENTION: All instructions in this troubleshooting refer to the entire sound system and its components.
The features of your device may not match the functions described in the notes. Then skip this point and move on to the next one.

NO FUNCTION / THE POWER LED IS NOT ILLUMINATED

First, check the fuse of the routed power cable on the vehicle battery
The fuse is defective

Replace the defective fuse with an equivalent one, never with a higher value.

•    The fuse fails again.

In this case, there appears to be a short circuit between the fuse and the device. To do this, check the +12V power cable along its entire length from the battery to the device for damage and whether there is a short circuit to ground, e.g. contact with the vehicle chassis or the body. If necessary, replace the defective power cable.

The fuse is okay

Use a standard 12-volt voltmeter to check the voltage between the +12V connection and the ground connection on the device.

•    There is no voltage.

Use the voltmeter to check the fuse, which is located close to the vehicle battery, to see whether there is voltage between the output and ground.

If there is no voltage there, either the fuse holder or the fuse is defective, although it appears to be okay. If necessary, replace the fuse holder or fuse.

•    There is voltage.

If you operate the device with a pre-device signal (RCA), you must have laid a remote turn-on wire from the head unit to the REM terminal of the device. The AUTO TURN-ON switch must be in the OFF position. However, you can test the AUTO TURN-ON switch to VOX to see if the device then turns on. If so, there is a problem with the control line.

•     A remote turn-on wire is connected to the REM terminal at the device.

Use the voltmeter to check whether there is voltage between the REM terminal of the device and the ground. The head unit must be switched on.

There is no voltage.

•    Check the remote turn-on wire from the device to the head unit for a short circuit or damage. If necessary, replace the control line.

There is voltage.

•    The device is probably malfunctioning or defective. Contact your retailer.

If you operate the device with the loudspeaker signals (high-level mode), the AUTO-TURN-ON switch must be switched to DC.

•     The AUTO TURN-ON switch is in the DC position, but the device remains off.

Check the speaker cables from the head unit to the device for short circuits or damage. If necessary, replace the speaker cables or insulate the damaged area.

THE POWER LED IS ON, BUT NO SOUND COMES FROM THE SPEAKERS

Check the following steps:
Low-level mode: Are the RCA cables on the head unit and the device correctly connected?

•    The RCA cables are correctly connected.

Then an RCA cable could be defective. Check the function of the RCA cables on another audio device. If necessary, replace the defective RCA cables.

High-level mode: Are the loudspeaker cables on the head unit and the high- level inputs of the device or the high-level cable plug correctly connected?

•    The speaker cables are connected correctly.

A speaker cable could be defective. If necessary, replace the speaker cable or insulate the damaged area.

Are the speaker cables correctly connected between the speakers or the subwoofer at the speaker outputs of the device?

•    The speaker cables are connected correctly.

A speaker cable could be defective. If necessary, replace the speaker cable or insulate the damaged area.

Is the high pass filter or subsonic filter set higher than the low pass filter on the device?

Then slowly turn down the controller for the high pass filter or subsonic filter until the sound can be heard.

Is the input mode switch on the device set correctly?

Check the setting and change the switch position if necessary.

Are the crossover switches on the device set correctly?

Check the settings and change the respective switch position if necessary.

Are the speakers or the subwoofer working?

Hold a standard 9-volt block battery to the terminals of each loudspeaker or the subwoofer.

•    A faint cracking sound can be heard. The speaker or subwoofer is fine.

•    There is nothing to be heard.

The loudspeaker or subwoofer could be defective. If necessary, replace the defective speaker or subwoofer.

Are the settings on the head unit set correctly?

•    Check the fader and balance settings

•    Check whether the mute function is activated

•    Check whether a high pass or low pass filter is activated

•    Check whether playback has been paused

•    Check the source settings

•    Check whether any existing subwoofer output is activated

DISTORTION OR HISSING NOISE CAN BE HEARD FROM THE SPEAKERS

Check the following steps:
Is an input level controller on the device set too high?

Slowly turn the controller back until you hear a clean audio signal.

Is the Bass Boost controller on the device set too high?

Slowly turn the controller back until you hear a clean audio signal.

Is the loudness function on the head unit set too high?

Deactivate loudness or turn the loudness setting back until you can hear a clean audio signal.

Are the EQ and sound settings on the head unit set too high?

Turn down the settings for Treble, Middle, and Bass, or deactivate the equalizer until you can hear a clean audio signal.

ENGINE SPEED-DEPENDENT NOISE CAN BE HEARD FROM THE SPEAKERS

Check the following steps:
Have the RCA cables been laid separately from the power cable in the vehicle?

If necessary, lay the cables again and make sure that the audio cables are laid separately from the power cable on the left and right in the vehicle.

Is the device’s ground connection correctly connected?

Make sure that the ground connection of the device is not connected directly to the negative pole of the vehicle battery. Select a suitable ground point on the vehicle body for connection. If necessary, use contact spray to improve the conductivity of the connections.

Is the conductivity of the ground cable from the vehicle battery to the body okay?

Make sure that the ground connection of the vehicle battery has a stable and conductive connection to the body. If necessary, use contact spray to improve the conductivity of the connections.

AN ACTIVE OPERATED TWEETER IS DISTORTED OR CRACKED

CAUTION: Tweeters will be damaged if the frequencies are too low. Please note the manufacturer’s information on which frequency setting is recommended. To be on the safe side, pause the play-back of the head unit first. Check the following steps:
Is the crossover mode switch of the relevant channel pair on the device set correctly?

Set the crossover mode switch to the high pass position (HP or HPF).

Is the high pass filter of the relevant channel pair set too low on the device?

First, turn the high pass controller fully clockwise. Now start playback on the head unit. Then turn the high pass controller slowly counter-clockwise until you can hear a clean sound from the tweeters and produce a balanced sound together with the woofers/mid-range speakers. Make sure that the woofers/ mid-range speakers are set correctly with the respective high pass and low pass controllers.

• Audio Design GmbH
• Am Breilingsweg 3 · D-76709 Kronau/Germany
• Tel. +49 7253 – 9465-0 · Fax +49 7253 – 946510
• www.esxaudio.de
• www.audiodesign.de
• © Audio Design GmbH, all rights reserved.

Documents / Resources

| ESX VISION VE900.7SP Class D 7-Channel Amplifier [pdf] Owner's Manual
VE900.7SP, VE900.7SP Class D 7-Channel Amplifier, Class D 7-Channel Amplifier, 7-Channel Amplifier, Amplifier
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References

• Audio Design - The Home Of Car Audio, Navigation And More ...
• ESX - Car Audio Systems
• esxaudio.de/ce
• esxaudio.de/dsp

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