Ground Zero GZNA 1.2550DXII, Owner'S Manual

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6
Controls and functions
1 Speaker terminals For connection of the subwoofer
2
Power terminals
GND -> Ground connection
REM -> Remote antenna terminal
BATT -> +12 Volt
3 Satus indication
WHTE – OK
RED – Error
4 Cinch inputs
Terminal for connection of the RCA wires.
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 +9 dB.
7 Bass frequency controller
For adjusting of the bass boost frequency in a range
from 30Hz to 80Hz.
8 Subsonic controller
This controller allows you to filter low frequencies in a range between 5 and 50
Hz. This function reduces the mechanical Xmax and raises the capacity of the
connected subwoofer.
9 Cinch Outputs For connection of additional amplifiers.
10 Low pass controller
Adjust the variable lowpass frequency to the desired frequency between 30 and
250 Hz using the controller.
11 Phase shift controller
This controller allows you to fit the subwoofer channel in-phase to the front
system.
12 Remote control input For connection of the bass remote control.
13 Slave In connection For connection of the slave amplifier in link mode. See page 7
14 Master Out connection For connection of the master amplifier in link mode. See page 7
15 Master / Slave Switch
For choosing the operation mode of each amplifier in link mode.
See page 7
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 about two-third of its full range.
3. Adjust LEVEL to a comfortable listening level.