Ground Zero Mobile Entertainment RADIOACTIVE GZRA 1.600D Mode D'emploi page 46

Controls and functions
GND -> Ground connection
Power terminals
1
REM -> Remote antenna terminal
BATT -> +12 Volt
2 Speaker terminals
For connection of the speakers
GREEN – OK
3 Satus indication
RED – Error
4 Remote control input
For connection of the bass remote control.
Set the filter switch to „HIGH" position.
High pass controller
Adjust the variable HPF crossover frequency to the desired frequency
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(Subsonic) using the controller. All frequency between 5 and 4000Hz will be
reproduced.
For subwoofer and Kickwoofer operation -
Only frequencies from 40Hz to 4000Hz will be reproduced (GZRA
4.100G(-W)) / 40 – 500 Hz (GZRA 2.200G(-W)) or 30 – 250 Hz (GZRA
1.600D(-W)) (depending on the LPF filter controller position). Set the
filter switch to „LOW" position. Adjust the variable LPF frequency to the
6 Low pass controller
desired frequency using the controller.
At LPF adjustment, also the Highpass (Subsonic) is activated.
This equals a Bandpass filter of 5 – 4000Hz (GZRA 4.100G(-W)) /
5 – 500 Hz (GZRA 2.200G(-W)).
7 Bass boost controller For adjusting of the bass boost level in the range from 0 to +12 dB.
8 Input level controller With this controller you can adjust the input sensitivity.
Subsonic controller (GZRA
9 For adjustment of the subsonic filter in a range of 5 – 50 Hz.
1.600D)
Phase Shift Regler This controller allows you to fit the subwoofer channel in-phase to the
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(GZRA 1.600D) front system.
Adjust the crossover for the chosen utilization.
LPF – Only bass frequencies below 40Hz -4000 Hz (GZRA 4.100G(-W)) /
40 – 500 Hz (GZRA 2.200G(-W)) will be reproduced.
FULL – All frequencies will be reproduced.
11 Mode Schalter
HPF – Only middle and high frequencies (over 5Hz – 4000Hz) will be
reproduced.
At LPF adjustment, also the Highpass (Subsonic) is activated.
This equals a Bandpass filter of 5 – 4000Hz (GZRA 4.100G(-W)) /
5 - 500 Hz (GZRA 2.200G(-W)).
Terminal for connection of the RCA wires.
12 Cinch inputs
To avoid failure, please use high quality RCA wires.
13 Output
For connection of additional amplifiers.
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
3. Adjust LEVEL to a comfortable listening level.
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All manuals and user guides at all-guides.com
about two-third of its full range.
Connecting the speaker for trimode operation - notes
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
80 Hz 7,5 mH
100 Hz 6,5 mH
120 Hz 5,5 mH
150 Hz 4 mH
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Capacitor
470 uF
330 uF
370 uF
220 uF