Controls And Functions - Ground Zero TITANIUM GZTA 2155X Manual Del Usuario

Controls and functions

1 Speaker terminals For connection of the speakers
GND -> Ground connection
Power terminals
2 REM -> Remote antenna terminal
BATT -> +12 Volt
GREEN – OK
3 Satus indication
RED – Error
Terminal for connection of the RCA wires.
4 Cinch inputs
To avoid failure, please use high quality RCA wires.
5 Input level controller With this controller you can adjust the input sensitivity.
6 Bass boost controller For adjusting of the bass boost level in the range from 0 to +12 dB.
Adjust the crossover for the chosen utilization.
LPF – Only bass frequencies (below 40Hz -4000Hz) will be
reproduced.
FULL – All frequencies will be reproduced.
7 Mode switch
HPF – Only middle and high frequencies (over 5Hz – 500Hz) will be
reproduced.
At LPF adjustment, also the Highpass (Subsonic) is activated.
This equals a Bandpass filter of 5 – 4000Hz.
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 500Hz will be
reproduced.
9 Remote control input For connection of the bass remote control.
For subwoofer and Kickwoofer operation -
Only frequencies from 40Hz to 4000Hz will be reproduced (depending
on the LPF filter controller position). Set the filter switch to „LOW"
position. Adjust the variable LPF frequency to the desired frequency
10 Low pass controller
using the controller.
At LPF adjustment, also the Highpass (Subsonic) is activated.
This equals a Bandpass filter of 5 – 4000Hz.
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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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.
Frequency
80 Hz
100 Hz
120 Hz
150 Hz
Autogoods "130"
Values for 6dB passive crossover
Inductor Capacitor
7,5 mH 470 uF
6,5 mH 330 uF
5,5 mH 370 uF
4 mH 220 uF
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