GROUND ZERO GZCS A-1.650D
CAR SPECIFIC SERIES
Controls & Features
1
Power terminal
+12V
To be connected to the positive terminal of the battery
REM
To be connected to the remote output of the head unit*
(*not required in high-level input mode)
GND
To be connected to the vehicle´s ground
(or directly to the negative terminal of the battery)
2
Fuse(s)
If necessary to replace a defective fuse, it´s strongly recommended to
use a fuse with identical value
3
Speaker terminal
To connect the speaker wires / min 1ohm load
4
Sensitivity control
Controller to adjust the input sensitivity
5
Line input (RCA)
Input sockets to connect RCA wires
Important note: High-level and RCA inputs should never be used
simultaneously! This may cause serious damage to the amplifier
6
High-level input
Head units without RCA pre-amplifier output signal can be connected
using the high-level input to connect the speaker output of the head
unit directly.
If used, the amplifier turns on automatically (auto-on feature)
The remote input of the power supply terminal remains unused
Important note: High-level and RCA inputs should never be used
simultaneously! This may cause serious damage to the amplifier
7
Phase shift control
To adjust the phase of the speaker (0° to 180°)
8
Low pass filter
To adjust the required crossover point. Frequencies above the selected
crossover point will be filtered (40 Hz to 250 Hz)
9
Subsonic filter
To adjust the required crossover point. Frequencies below the selected
crossover point will be filtered (10 Hz to 40 Hz)
10 Bass boost control
To increase the bass level at 50 Hz up to 12 dB
11 Remote socket
To connect the wired bass level remote control (available separately)
12 Status indication
POWER (green) ok (correct operation)
PROTECT
(red) error (protection mode)
