5
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 down.
(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.
Controls and functions
1
High pass controller
Front
Activated at 3 channel mode with subwoofer [Modeswitch to Front+Sub (intern)]
and for external subwoofer use [Modeswitch to 4CH + Sub (extern)] .
Adjust the variable HPF crossover frequency to the desired frequency using the
controller. All frequency below 50 and 250Hz will be filtered.
2
High pass controller
Rear
Activated at external subwoofer mode [Modeschalter auf 4CH + Sub (extern)]
Adjust the variable HPF crossover frequency to the desired frequency using the
controller. All frequency below 50 and 250Hz will be filtered.
3
Low pass controller
Rear
Activated at 3 channel mode with subwoofer [Modeswitch to Front+Sub (intern)]
Adjust the variable LPF crossover frequency to the desired frequency using the
controller. All frequency above 50 and 250Hz will be filtered.
4
Mode switch
Choose the correct mode for your application.
FRONT+SUB
– 3 channel mode. The front speakers are powered by the FRONT
channels. The high pass filter is activated.
The REAR channels are powering a subwoofer in bridgemode with min. 4 Ohm
impedance. The low pass filter is activated.
NORMAL
– FRONT and REAR channels are powering the front and rear speakers.
The filters are NOT activated.
4CH + SUB
– 4 channel mode with external subwoofer. FRONT and REAR
channels are powering the front and rear speakers. The high pass filter of FRONT
and REAR are activated. Low pass is NOT activated.
5
Level controller
With this controller you can adjust the input sensitivity.
6
LED
Low Batt
Protection circuit that protects the unit and battery from low voltage. LED is
illuminated yellow during low batt protection.
7
LED
Temp
Protection circuit that protects the unit from overheating. (max 80°). LED is
illuminated red during overheat protection.
8
LED
Radio On
The amplifier automatically turns on a few seconds after you turn on your radio.
The LED is illuminated green when amplifier is switched on.
9
Power and signal
connector
Connector for the provided cable harness.
Please attent to use SOLELY the original, specific GZCS 4.60ISO cable
harness. Using a wrong cable harness can destroy the amplifier and car
electronics.
