Ground Zero HYDROGEN SERIES Manuale utente

HYDROGEN-SERIES

AMPLIFIER

OWNER’S MANUAL

GZHA 4200XII

Features

•2 Ohm stable Stereo

•4 Ohm bridgeable

•Mosfet power supply

•SMD Technology

•Power & Protection indicator

•Variable 12dB bass boost (45Hz)

•Variable highpass / subsonic

•Variable lowpass

•Adjustable input sensitivity

•Soft delayed remote turn- on

•Bass remote control

•RCA output

•Thermal / Short / Overload protection

- 2 -

Tools and materials you need

•Screwdriver

•Electric drill, 3 mm / 0.12” carbide drill bit

•Mounting screws

•Power wire min. 25 mm² / 4AWG

•Ground wire min. 25 mm² / 4AWG

•Speaker wire min. 2 x 2,5 mm² / 13AWG

Please note!

•As a precaution it is advisable to disconnect the vehicle’s battery before making connection

to the +12 Volts supply wiring (see owner’s manual of your car for further information).

•Please use great caution drilling your trunk. Your gas tank and brake lines can be damaged by puncturing with your drill bit –

this could cause damage or failure of your cars operating systems.

•Never pass wires over sharp angles. It is recommended to buffer the power supply of the amplifier with a capacitor min. 1

Farad to guarantee a stable operation voltage.

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, thus constituting to a potential traffic hazard. In the interest of

safety, Consumer Electronics recommends listening at lower volume levels while driving.

Planning your system

Before beginning the installation, consider the following:

a. If you plan to expand your system by adding other components sometime in the future, ensure adequate space is left, and

cooling requirements are met.

b. If your radio / source is equipped with pre-amp outputs, it is possible to utilize them to drive the amplifier

Mounting your amplifier

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

and has ample room for air circulation and cooling.

b. Use the amplifier as a template to mark the mounting holes, remove the amplifier.

Warning

Chose a mounting position where all electric wires are protected from being damaged by sharp edges, heat or other conditions. +12Volt

DC electrical connections must be fused on the battery side. Make sure your radio and all other devices will be turned off while connection

your system. If you need to replace the power fuse, replace it only with a fuse identical to that supplied with the system. Using a fuse of

different type or rating may result in damage to this system which isn’t covered by the warranty.

- 3 -

Controls and functions

- 4 -

Controls and functions

Speaker terminals

For connection of the speakers

Power terminals

GND -> Ground connection

REM -> Remote antenna terminal

BATT -> +12 Volt

Status indication

WHITE – OK

RED – Error

RCA inputs

Terminal for connection of the RCA wires.

To avoid failure, please use high quality RCA wires.

Input level controller

With this controller you can adjust the input sensitivity.

Bass boost controller

For adjusting of the bass boost level in the range from 0 to +12 dB (45 Hz)

(Channel 3/4)

Mode switch

Adjust the crossover for the chosen utilization.

LPF – Channel 1/2: Filter fixed @ 80 Hz. Only bass frequencies (below 80 Hz)

will be reproduced.

Channel 3/4: Only bass frequencies (below 30 - 250 Hz) will be reproduced.

At LPF adjustment, also the Highpass (Subsonic) is activated.

This equals a Bandpass filter of 5 – 250 Hz.

FULL – All frequencies will be reproduced.

HPF – Only middle and high frequencies (over 5Hz – 500Hz) will be

reproduced.

High pass controller

(Subsonic)

Adjust the variable highpass crossover frequency between 5 and 250 Hz (Ch

3/4) and 40 Hz – 3 kHz (Ch 1/2).

RCA output

For connection of additional amplifiers in fullrange operation.

Low pass controller

Adjust the variable lowpass frequency between 30 – 250 Hz (Ch 3/4)

80 Hz fix @ channel 1/2.

Phase shift controller

This controller allows you to fit the subwoofer channel in-phase to the front

system.

Remote control input

For connection of the bass remote control.

Turning on the amplifier

The amplifier automatically turns on a few seconds after you turn on your radio.

Note: Your amplifier temporarily shuts down if it gets too hot, then restarts automatically once it cools

(At about 80° / 176° F).

Adjusting the audio level

1. LEVEL (Min/Max): Turn fully counter- clockwise to MIN position

2. Turn the auto sound system's volume control to about two-third of its full range.

3. Adjust LEVEL to a comfortable listening level.

- 5 -

Stereo wiring

- 6 -

Stereo wiring

Trimode wiring

- 7 -

Trimode crossover

TRI MODE operation output allows a subwoofer to be operated in mono mode while the main speakers are playing in stereo. Leave the

crossover switch on “Full” position.

Use 100 volt, non-polar capacitors for a high pass crossover to filter out low frequencies and Air- core or

Ferrit- ore coils with a minimum diameter of 1 mm / 0.039” for the lowpass crossover to filter out high frequencies.

The capacitor and inductor values as written in the below table. The front and rear channels of this amplifier get this capability. Only the

rear left and right channels are shown on the following pictures.

Values for 6dB passive crossover

Frequency

Inductor

Capacitor

80 Hz

7,5 mH

470 uF

100 Hz

6,5 mH

330 uF

120 Hz

5,5 mH

370 uF

150 Hz

4 mH

220 uF

Specifications

Model

GZHA 4200XII

Type

4 Channel Class AB

RMS Power @ 4 Ω

CEA Standard CEA-2006-A

4 x 140 W (1% THD+N)

RMS Power @ 2 Ω

CEA Standard CEA-2006-A

4 x 200 W

(1% THD+N)

4 x 250 W (10% THD+N)

RMS Power @ 4ΩBridged

CEA Standard CEA-2006-A

2 x 400 W (1% THD+N)

2 x 500 W (10% THD+N)

Damping factor

> 200

Lowpass

Channel 1/2: 80 Hz fix

Channel 3/4: 30 Hz – 250 Hz

Highpass

Channel 1/2: 40 Hz – 3 kHz

Channel 3/4: 5 Hz – 250 Hz

Bandpass

5 Hz – 250 Hz (Ch 3/4)

Bass boost

0 ~ +12 dB (45 Hz) (Ch 3/4)

Phase shift

0 – 180° (variable) (Ch 3/4)

Frequency response

5 Hz – 38 kHz (± 1 dB)

Input sensitivity

200 mV – 9 V (± 5%)

Bass remote control



(Channel 3/4)

Fuse

2 x 40A

Dimensions

W x H x L mm

293 x 67 x 400

Dimensions

W x H x L inch

11.54“ x 2.64“ x 15.75“

- 8 -

Trouble shooting guide

Symptoms

Check Points

Cure

No sound Is the POWER LED illuminated?

Check fuses in amplifier.

Be sure remote lead is connected.

Check +12 Volt connection

Check ground connection

Is the diagnostic LED illuminated?

Check for speaker short or amplifier overheating

Amp not switching on

No power to the amplifier

Check power wire or connections

No power to remote wire with receiver on

Check connections to radio

No sound in one channel

Check speaker leads

Inspect for short circuit or an open connection

Check audio leads

Reverse left and right RCA inputs to determine if it

is occurring before the amp

Amp turning off at medium /

high volume Check speaker load impedance

Be sure proper speaker load impedance

recommendations are observed

(If you use an ohm meter to check speaker

resistance, please remember that DC resistance

and AC impedance may not be the same.)

Protection LED is on

Temperature shut down

Turn radio volume down

Speaker wires short

Separate speaker wires and insulate

Die Gewährleistung entspricht der gesetzlichen Regelung. Eine Rücksendung kann nur nach vorheriger Absprache und in der

Originalverpackung erfolgen. Bitte unbedingt einen maschinell erstellten Kaufbeleg und eine Fehlerbeschreibung beilegen. Von der

Gewährleistung ausgeschlossen sind Defekte, die durch Überlastung, unsachgemäße Behandlung oder bei Teilnahme an Wettbewerben

entstanden sind. Wir behalten uns das Recht vor, zukünftig nötige Änderungen oder Verbesserungen an dem Produkt vorzunehmen ohne

den Kunden darüber zu informieren.

Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing

the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition

purpose are not covered by the warranty. We reserve the right to make needed change or improvement to the product without informing

customer about this in advance.

De Garantie bepalingen van alle door ground zero geleverde producten is volgens wettelijke

bepalingen geregeld, Een retourzending kan alleen na duidelijke afspraak en in de originele

verpakking plaatsvinden.SVP een aankoopbon en een duidelijke storingsomschrijving bijvoegen.Van garantie uitgesloten zijn defecten door

overbelasting, onkundig gebruik, of door deelname aan wedstrijden (SPL) ontstaan zijn. Wij behouden ons het recht om de nodige

veranderingen of verbeteringen aan het product door te voeren zonder de klant hierover te informeren.

La garantie est conforme aux droits légaux. Un retour du produit défectueux doit être dans son

emballage d'origine sur présentation du reçu ou de la facture indiquant la description du defaut.La présente Garantie n'est pas applicable

lorsque le produit a été endommagé en raison: Mauvaise alimentation, Trop de puissance (HP,Subwoofer) Accident, Installation ou

Utilisation non conforme aux normes Technique (Concours SPL etc). Nous nous réservons le droit d'entreprendre à l'avenir nécessairement

des modifications ou des

améliorations au produit sans informer le client.

Ground Zero GmbH

Erlenweg 25, 85658 Egmating, Germany

Tel. +49 (0)8095/873 830 Fax -8310

www.ground-zero-audio.com

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