Ground Zero DSP Series Manuel utilisateur

DSP-SERIES

AMPLIFIER

MANUAL

GZDSP 4.60ISO

Feature list

•4-channel ISO Plug & Play amplifier with integrated signal processor (DSP)

•For vehicles with ISO connectors (without active OEM sound system)

•4-channel high-level input (via ISO harness with auto-on function)

•4-channel line output (RCA)

•AUX input (RCA)

•TOSLINK input (sampling rate up to 24-bit/96kHz)

•Plug for optional wireless interface (for music streaming)

•8-channel signal processor (DSP) - Cirrus Logic single core 32-bit/192 kHz

•Realtime setup of all functions (via PC)

•Simple handling one-page graphical user interface (Windows compatible)

•Channel separated parametric equalizer (6x 31 band / 2x 11band)

•Channel separated time alignment (0-15 ms / 0-510 cm)

•Adjustable crossover (HPF / LPF / BPF) in the range of 20 Hz to 20 kHz

•Selectable crossover slope (6 to 48 dB/Oct)

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

•Memory for 10 user presets (selectable with optional remote control)

•Two optional remote control available (one with LED display or one with LCD color display

with touch screen to adjust main and subwoofer level, select one of the presets and the input

mode

•Power and status indicator (protection circuit)

•High temperature / short circuit / overload protection circuit)

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- 3 -

Package contents

•1 x GZDSP 4.60ISO amplifier

•1 x Universal ISO harness

•1 x USB cable (A- to Mini-B connector) 1.5 m / 4.92 ft

•1 x 4-channel line output harness

•1 x AUX input harness (incl. remote connection)

•1 x CD-ROM incl. PC software and driver package (for Windows)

•Owner´s manual (German and English)

Optionally available:

•Remote control unit GZDSP Remote with LED display incl. connection wire

•Remote control unit GZDSP Touch-Remote with color LCD display incl. connection wire

•Interface GZDSP BT-Box with connecting cable (for wireless music streaming)

Table of contents

Important safety notes and installation instructions

Audio connections

ISO harness connection

Note about the vehicle´s ISO plug pinout

Note about the current requirement

PC software installation

Connecting the unit with a Windows PC

8-9

USB port selection

Wrong COM port error message

Software user interface

Channel selection

Channel matrix 13

Channel configuration (level adjustment and time alignment)

Application example (time alignment)

Adjustment of the crossover

Frequency chart and equalizer

File dropdown menu

Preset memory saving and loading

Remote setting / Application examples of the GZDSP 4.60ISO

Technical specifications

Error diagnosis

Warranty conditions

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Required parts and tools for the installation

•screwdriver

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

•mounting screws

IMPORTANT!

•Disconnect the vehicle battery before starting the installation! (Note the vehicles 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!

Selecting a mounting position

Select a suitable location that is convenient for mounting, is accessible for wiring and has an ample room for air circulation and cooling.

The unit must not be covered or mounted close to heat emitting objects. Because of the high operation temperature (up to 80°C), it is

important to ensure sufficient distance to any heat-sensitive object. Especially the distance between GZDSP 4.60ISO and any plastic part or

electronic component should be at least 3 cm (1.18”).

Mounting the Unit

You may use the unit as a template to mark the mounting holes, then remove it and drill the marked holes. Finally mount the unit with the

mounting screws.

Caution

Choose a mounting position where all electric wires are protected from being damaged 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, wiring or even your cars electric. Any kind of damage traced back on disregard of these notes will not be

covered by the warranty!

WARNING!

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 may lead to potential traffic hazards. In the

interest of safety, consumer electronics recommends listening at lower volume levels while driving.

- 5 -

Audio connections

LINE OUT socket

To connect the included 4-channel RCA line out harness delivering the audio signal of channel E/F

and G/H for further amplifiers. The signal can be set using the PC software

MAIN INPUT socket

To connect the included ISO harness for power and high-level input as well as speaker output

POW & PRT status

indicator

The amplifier is in operation mode as soon as the POW indicator turns on. When the amplifiers

protection circuit is activated the PRT indicator turns on (see chapter Error diagnosis)

REMOTE socket

To connect one of the optionally available remote-control units

GZDSP Remote

GZDSP Touch-Remote

OPTICAL INPUT

socket

(TOSLINK)

To connect a digital audio source using the optical signal (SPDIF / stereo PCM)

Attention: If the digital audio source has no level control, we strongly recommend using one of the

available remote-control units. Otherwise the audio reproduction will be applied at max level!

PC CONNECT

(MINI USB socket)

and

status indicator

To adjust the audio setting the unit must be connected to a PC using the included USB cable

(compatible Windows PC with installed DSP software from the CD). The PC can be disconnected

when the adjustment is done. The USB cable should not be extended to ensure an accurate

communication between the DSP unit and the PC. The indicator next to the MINI USB socket will

turn blue as soon as the connection has been established.

AUTO TURN ON

switch

Selects the turn-on mode. When ON has been selected the amplifier will turn on automatically as

soon as an audio signal is detected at the high-level input. In OFF position, the amplifier has to be

turned on using a separate remote wire (via AUX harness).

BT BOX socket

To connect the wireless audio interface GZDSP BT-Box or remote control GZDSP Touch-Remote –

both of them are available optionally.

AUX INPUT socket

(REM IN/OUT)

To connect the 2-channel RCA AUX harness for an additional audio source.AUX can be selected as

audio source using the PC software or one of the available remote-control units.

If the input is limited to the AUX input, the

auto-on

switch must be in OFF position and a separate

remote wire has to be connected to the AUX harness (remote in). The remote out wire can be used

to turn on further amplifiers when the DSP unit is in operation. A wire diameter of at least 0.5 mm²

is required. The current of the remote out wire is limited to

130 mA

. In case of using several units

with a common current exceeding the limitation, an additional relay is required.

- 6 -

ISO harness connection

The GZDSP 4.60ISO will be connected directly to the wiring of the factory or after market head unit (power and

speaker cables) by integrating the included ISO harness as shown below. Cars with other than ISO connectors (e.g.

Quadlock) require an optional adapter available at your car audio dealer.

Note about the vehicle´s ISO plug pinout

Please note, that the pinout of the car specific ISO plug may vary in some cases. Amongst some others the cars of the

VAG group (VW, Audi, Seat, Skoda) the pins for constant and accessory power are inverted. This has to be noticed

previous to the installation of the GZDSP 4.60ISO. For this reason, the according wires (blue and yellow) can be

repositioned at the ISO harness (see above / chapter ISO harness connection).

ATTENTION!

Please note that the GZDSP 4.60ISO cannot be used in vehicles with a factory active system installed. That might lead

to serious defects of the amplifier as well as of the vehicle´s electronic system. In case of uncertainty contact your car

audio dealer or the car´s manufacturer.

- 7 -

Note about the current requirement

The GZDSP 4.60ISO amplifier has been developed to be installed using the factory wiring. For some vehicles however,

it might be necessary to connect the power wires of the GZDSP 4.60ISO directly to the car´s battery and the ground

wire to the car´s body.

ATTENTION

-The factory´s wiring of the head unit should have a fuse with a value of at least 20A. Otherwise the power

supply might be insufficient for an accurate operation of the amplifier. (see fuses / car´s owner´s manual)

-If there are further aftermarket units like a handsfree, GPS system, charging cable or similar consumers

connected to the head unit´s factory wiring, the current might exceed the fuse value.

-It is not possible to install more than one GZDSP 4.60ISO using the factory´s head unit wiring. If further

amplifiers are to be installed, the power wire has to be connected directly the battery and ground wire

directly to the car´s body.

-For the best result, it is recommended to connect the power wire of the GZDSP 4.60ISO directly to the

battery and the ground wire to the car´s body. For this, the cable connectors of the harness have to be

dispatched and connected to separate wires (not included). Please, contact your car audio installer if

necessary.

- 8 -

PC software installation

In order to install and use the PC software, a Windows™ XP (SP3) operating system (or later) with a USB port is

required. The installation will need about 25 MB free memory space. We recommend using 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: www.ground-zero-audio.com

Run the setup.exe file. The installation wizard will install the software for the DSP as usual. We recommend creating a

desktop icon. The drivers will be installed automatically during the DSP software installation. The PC requires a restart

after the installation of the software

Important note for 64 bit operating systems:

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

www.ground-zero-audio.com

Software update:

It´s strongly recommended running always the latest DSP software. The actual version can be downloaded here:

www.ground-zero-audio.com

Connecting the DSP to the PC

Note about the USB connection:

The included USB cable should not be extended to avoid any kind of malfunction of the communication between the

DSP unit and the PC. The LED next to the USB port on the unit will light up blue as soon as the GZDSP 4.60ISO has

established a connection to the PC.

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Demo Mode (Off-Line Mode):

It´s possible to use the software in offline mode without having the GZDSP 4.60ISO connected to the PC to become

familiar with most of the features and to create sample setups.

USB port selection

In order to configure the DSP,

the GZDSP 4.60ISO has to be

connected to the PC with the DSP

software installed using the included

USB wire.

The head unit and the DSP unit have

to be turned on before running the

DSP software on the PC.

The DSP software starts by double

click on the desktop icon.

The start screen will appear and the

GZDSP 4.60ISO should be selected

as device (Select Device).

The latest software version can be

downloaded from this page:

www.ground-zero-audio.com

After having the DSP unit selected at the

Select Device

menu,

the

RS232 Setting

window will appear.

Usually the correct COM port will be selected automatically. The port number

may vary depending on the computer´s environment. It can be selected

manually using the drop down menu.

Note:

The COM port will be assigned automatically by the Windows operating

system. Please note that this should be one of the ports COM1 to COM9. In

case of any problem, please follow the instructions on the next page.

A click on the

Connect

button will start the automatic connection process of

the GZDSP 4.60ISO to the PC.

Next click on

Click here to test

connects the unit to the PC.

A number of automatic tests will be initiated now and each of them marked as

after successful examination.

Finally, a click on

[OK] Click here to start

will open the user interface of the

DSP software.

- 10 -

Wrong COM-Port error message

If this message will appear, the operating system

assigned the wrong COM port or it was not possible

to assign one of the COM1 to COM9 ports due to

environmental issues of the PC. The COM port

assignment may be checked with the operating

system´s device manager.

In this case the correct COM port is number 3

Close the pop-up window by clicking

. Now it is

possible to select the correct COM port at the Select

COM window.

Important note:

If the assigned COM port will be COM10 or even

higher one of the unused COM ports 1 to 9 has to be

deleted in order to change the previously automatically

assigned COM port for the

USB-SERIAL CH340

device.

Subsequently, the COM port can be selected in the

properties

of the

USB-SERIAL CH340

device (right click

on the device at the device manager).

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