Ground Zero GZDSP 6-8X Service Manual

DIGITAL SOUND

PROCESSOR

MANUAL

GZDSP 6-8X

Features

• Digital sound processor

• Simple handling via 1-page user interface

• Realtime setup (all functions)

• Cirrus Logic single core 32 Bit, 8-channel, 192 kHz

• 6 channel input / 8 channel output

• High-level and low-level input

• DC Auto-On (using the high-level input)

• TOSLINK input (optical @12 ~ 96 kHz )

• 3.5mm stereo jack AUX – input connector

• 6 x 31 band equalizer ( -18 to + 12 dB / Q: 0.5 - 9 ) 20 - 20000 Hz (on output A - F)

• 2 x 11 band equalizer ( -18 to + 12 dB / Q: 0.5 - 9 ) 20 - 200 Hz (on output G/H)

• Time alignment – adjustable range 0 - 15 ms / 0 - 510 cm

• Adjustable filters (Butterworth) HPF / LPF / BPF with a slope of 6 – 48 dB/Oct.

• selectable phase shift for each channel (0˚ or 180°)

• Memory for up to 10 user presets

• Optional remote control unit with LED display to adjust the main volume and

switch between the presets and input mode

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Package contents

GZDSP Remote

• 1 x GZDSP 6-8X processor

• 1 x USB cable ( A- to Mini-B connector) 5 m

• 1 x high-level input harness

• 1 x power supply harness

• 1 x PC software und drivers on CD-ROM

• 1 x manual (German/English)

optional:

• remote control unit

with LED display incl. connection wire

Table of contents

Important safety notes and installation instructions 3

Audio connection 4

Power supply connection 5

Remote out connector usage 6

High-level input connection 6

Remote control unit usage 7

PC software installation 7

DSP to PC connection 8

USB port selection 9

Wrong COM port error 10

Software user interface features 11 - 17

>FILE< dropdown menu 18

Preset memory saving 18

Digital sound processor (application examples) 19

Technical specifications 20

Troubleshooting 21

Warranty conditions 22

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WARNING!

• screwdriver

• electric drill, 3 mm / 0.12“ carbide drill bit

• mounting screws

• power wire min. 1 mm² / 17 AWG

• ground wire min 1 mm² / 17 AWG

Most important

• Disconnect vehicle battery befor e starting the installation! (Note the vehicle’s operating manual)

• Never drill any holes into the fuel tank, brake pipes, wiring or any other sensitive parts of the vehicle!

• Keep the installed wires away from any sharp edges!

High powered audio systems in a vehicle are capable of generating "Live Concert" levels of sound pressure. Continued exposure to excessively high volume sound levels may cause hearing loss or damage. Also, operation of a motor vehicle while listening to audio equipment at high volume levels may impair your ability to hear external sounds such as horns, warning signals or emergency vehicles! This ma y lead to potential traffic hazards. In the interest of safety, consumer electronics recommends listening at lower volume levels while driving.

Required parts and tools for the installation

Before starting to install the unit, plea se consider the following:

a. If you are planning to expand your system by adding other components in the future, ensure enoug h space is left and cooling requirements are met.

b. If your head-unit is equipped with pre-amplified outputs (RCA), we recommend to use them.

Mounting the Unit

Planning your system

a) Select a suitable location that is convenient for mounting, is accessible for wiring

and has enough space for air circulation and cooling.

b) You may use the unit as a template to mark the mounting holes, then r emove it and drill the ma rked holes .

Finally mount the unit with the mounting screws.

Caution

Choose a mounting position where all electric wires are protected from damage by sharp edges, heat or other conditions. +12 Volt DC electrical connections must be fused on the battery side. Make sure your head-unit and all other devices will remain turned off while connecting parts of the system. If it is necessary to replace any fuse make sure to use only an equivalent one. Using inferior fuses may cause serious damage to your unit, system or even your cars wiring. Any kind of damage traced back on disregard of these notes will not be covered b y the warranty!

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Status LED

LED lights up - unit is ready and working

RCA output

Every single RCA (LINE OUT) connector provides an audio-signal driving the RCA inputs of the amplifier and is capable of being configured using the DSP PC software.

USB port

Connect th e unit with the supplied cable to your PC to operate the user int erfac e and configure the

Optical input (TOSLINK)

Audio sources offering an optical SP/DIF signal (Stereo PCM) may be connected to this port using a

Please note: optional remote control unit (GZDSP Remote)

RC connector

Connector for the optional remote control unit GZDSP Remote

Subwoofer input

If your head-unit has six pre-amplified output channels, the (two) subwoofer channels should be

High-level input

The High-Level Input has to be used if the h ead-unit has neither pre-amplified output, nor offering

Caution:

cannot

malfunction and cause serious damage to the DSP unit.

RCA input

Connect the pre-amplified head-unit output for front and rear signals using suitable wires to the RCA (LINE IN) sockets.

AUX Input Please note:

GZDSP Remote)

Audio Connection

setup of the DSP. Ma ke sure to install the PC software previously. The unit may be disconnected after the setup is done. We do not recommend to use any extension cord with the supplied USB wire, as the proper function ca not be ensured. If the enclosed wire is too short, we recommend a suitable USB wire with an integrated repea ter. The LED next to the USB port will light up blue as soon as the DSP unit has been connected to the PC.

suitable TOSLINK wire.

connected to these inputs.

a SP/DIF signal. In this case the head-unit speaker output wires have to be connected to the Highlevel Input harness. By using the High-Level Input the DSP unit will turn on automatically recognizing the DC level, therefore it is not necessary to connect the Remote-In wire to the power terminal.

External audio sources like smartphone, MP3-player or mobile GPS s ystem may be connected to the 3.5 mm (1/8”) stereo jack and used with the auxiliary input mode.

optional remote control unit (

If the audio source offers no variable volume level, it is absolutely neces sary to use th e

The high-level input and the RCA input

If the audio source offers no variable volume level, it is absolutely neces sary to use th e

be used a t the same time. This may lead to

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Ground

Connect th e unit to a suitable ground terminal on the vehicles body. The ground wire should be as

+ 12 Volt Power

Connect th e unit to the + 12 volt power pole o f the vehicles battery. Use an adequate power wire

Remote In

+12 Volt remote turn on signal. Connect the head-units remote out wire (REM) for amplifiers or the

Please note:

Remote Out

To be used with additional system equipment like amplifiers. If connected to the amplifiers Remote-In

130 mA!

Power Supply Connection

short as possible and be mounted to an unvarnished metal part of the vehi cles body. Ensure that this part has an unlimited electrical connection to ground pole of the battery. Use an adequate ground wire gauge (not less than 1,0 mm² / 17 AWG). The ground wire gauge should match the power wire gauge.

gauge (not less than 1,0 mm² / 17 AWG) and mount an additional fuse holder (with a 2 Ampere fuse) which will not be further than 30 cm / 12” away from the power p ole of th e vehicles ba ttery. The fuses should not be plugged into the fuse holder before the installation has been finished.

electric antenna if the RCA signal input or the optical connector is used. A wire gauge of 0.5 mm² / 20 AWG is sufficient.

By using the high-level input the DSP unit will be turned on automatically if a DC-On voltage is recognized. Therefore it is not necessary to connect a remote wire to the power terminal. This feature will work fine with most of the modern head-units. However some older head-units may not be capable to provide the DC-On signal. In this case the Auto Turn/On feature cannot be used. The Remote-Out function remains in Auto Turn/On mode and may be used for additional system equipment.

Auto Turn/On (activates the DSP unit)

terminal the amplifier will turn on or off together with the DSP unit when the head-unit is turned on or off. A wire gauge of 0.5 mm² / 20 AWG is sufficient to connect the amplifier. The current should not exceed additional relay (page 6).

If the current of multiple connected units is higher, it is necessary to use an

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Relay circuit for using multiple amplifiers at the REMOTE OUT teminal

Relais ist nicht im Lieferumfang enthalten / Relay is not included in the package content

High-Level Connector Pin Assignment

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Input Set

Selects the Input Mode in shown sequence (MAIN/AUX-IN/OPTICAL)

Level Controller

The controller sets the main volume level of the DSP unit. Subwoofer level (SUB OUT G/H) can be adjusted after pushing and holding the button for approximately 3 seconds.

LED Display

The LED display will show the current volume level or the chosen preset

Mode (Presets)

Up/Down button switch between previously saved presets. The OK button confirms the selection and sets the DSP to this preset.

Important note for 64 bit operating systems:

Software update:

1 2 3

Installation of PC software

In order to install and use the PC software, a Windows™ XP (SP3) operating system (or later) and a USB port is required. The installation will need about 25 MB free memory space. We recommend to use a laptop for easier handling. Insert the enclosed CD-ROM into the CD drive of your PC. If there is no CD drive available, the software can be downloaded from the following link: http://ground-zero-audio.com/de/downloads/dsp-software.html Run the setup.exe, the installation wizard will install the software for the DSP the usual way. We recommend to create a desktop icon. The drivers will be installed automatically during the DSP software installation. Restart the PC after the installation has been finished.

It may be necessary to install a 64 bit driver manually. The driver can be found on the CD-ROM or at:

http://ground-zero-audio.com/de/downloads/dsp-software.html

Please note that you should always use the latest DSP-Software. Here you can download all software versions:

http://ground-zero-audio.com/de/downloads/dsp-software.html

Remote Control Unit Features (optionally available)

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