Bedienungsanleitung Ground zero GZTA 4.24VDC (Seite 12 von 26) (Deutsch)

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BRIDGED MODE

POWER CONNECTION LEADS

Battery

DC 24

+12V – +24V

+24V REM GND

NOTES ON THE POWER SUPPLY:

o Connect the +24V power input lead only after all other leads have been connected.

o Be sure to connect the ground wire of the unit securely to a metal part of the car. A lose connection

may cause a malfunction of the amplifier.

o REM: The unit is turned on by applying +12 - +24 Volts to this terminal. This terminal does not

draw heavy current like the two power terminals so a thinner connecting wire is acceptable.

Standard 18 gauge is fine (standard colour: yellow). If the radio is equipped with a power antenna

control wire, it can drive this terminal.

o Place the fuse in the power supply lead as close as possible to the car battery (max. 30 cm /

11.81”).

o During a full power operation, maximum current will run through the system. Therefore, make sure

that the leads to be connected to the +24V and GND terminals of the unit respectively must be

larger than 10 gauge (AWG 10).

OPERATION

After the amplifier has been installed and all connections have been made carefully and securely, turn the radio

on so that the amplifier is switched on automatically. After a short power-on period, the amplifier reaches its full

performance. Now turn up the volume slowly using the volume control of the radio. If there is no sound or only a

distorted replay, switch off the radio immediately – the amplifier will also switch off automatically – and check if

all connections have been made correctly.

o GAIN = INPUT LEVEL CONTROL

The input level control allows the system to work well within a wide range of output level. Choose the

adjustment in the way that you achieve a sound most possibly without any distortion. As a guideline the

following procedure is recommended: Tune in the volume of your car radio to 2/3 of the maximum volume.

Now turn the gain control of the amplifier from “Min” to “Max” direction until you can hear distortions.

Then turn the level control a little back to “Min”. The gain control adjustment if finished now.

o X-OVER FREQUENCY CONTROL

A) When the crossover control is in the Low-Pass position, this control becomes active allowing

you to select your crossover point. For example: If you select 30Hz the amplifier will operate

below 30Hz, if you select 250Hz the amplifier will operate below 250Hz.

B) When the crossover control is in the High-Pass position, this control becomes active allowing

you to select your crossover point. For example: If you select 30Hz the amplifier will operate

above 30Hz, if you select 250Hz the amplifier will operate above 250Hz.

o CROSSOVER SWITCH

Flat: full range frequency

Low pass: the lower frequency under setting point can be pass.

High pass: The higher frequency above setting point can be pass.

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Ground zero GZTA 4.24VDC Seite 12

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