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4
Operation
AMP1
GAIN
xaVER
BASS
GAIN
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BASS
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11
OFF HI La
0
f'
OFF HI LO
AUTO
INPUT
L O R
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1. Automatic Turn-On Selection The ZX series offers three different automatic turn-on modes that can
be selected on the end panel;
+
12V, DC Offset, and Audio. Using either the DC Offset or Audio mode
causes the REM terminal to have
+
12V out for turning on additional amplifiers.
ORemote Turn-On Set the switch to
+ 12V to use the remote turn-on lead from your source unit. Run
18 Ga wire from the Remote Turn-On Lead on your source unit to the terminal labeled REM between the
amplifier's positive and negative power terminals. This is the preferred automatic turn-on method.
ODC Offset Turn-On If Remote Turn-On is not an option, the next best setting is DC Offset. The DC
Offset mode detects a 6 volt surge from the HI Level speaker outputs when the source unit has been
turned on.
OSignal Sense Turn-On The Audio setting is the final alternative for Automatic turn-on. This is a Signal
Sense turn-on method that detects the incoming audio signal from your source unit and automatically
turns on the amp. This turn-on method will not work properly if the input gain control is not set
appropriately.
2. Input Level The RCA inputs on Kicker ZX amplifiers are capable of receiving either Hi or Low-level
signals from your source unit. If the only output available from your source unit is a Hi-Level signal, simply
press in the Input Level switch on the amplifier. Refer to the wiring section of this manual additional
instructions.
3. Crossover Switch Use the XOVER switch on the end panel of the amplifier to set the internal
crossover to OFF,
HI
or LO. When the switch is set to OFF, a full bandwidth signal will be amplified. Set
the switch to HI if you want the amplifier's internal crossover to serve as a high-pass filter fixed at 80 Hz
with a 12 db/octave slope. Set the switch to LO if you want the amplifier's internal crossover to serve as
a low-pass filter fixed at 80 Hz with an 18 db/octave slope to power your subwoofers.
4. Input Gain Control The input gain control is not a volume control. It matches the output of the
source unit to the input level of the amplifier. Turn the source unit up to about 3/4 volume (if the source
unit goes to 30, turn it to 25). Next, slowly turn (clockwise) the gain on the amplifier up until you can hear
audible distortion, then turn it down a little.
5. Bass Boost Control The variable bass boost control on the end panel of the amplifier is designed to
give you increased bass output from 0 - 12dB at 40 Hz. The setting for this control is subjective. If you
turn it up, you must go back and adjust the input gain control to avoid clipping the amplifier.
TroubleShooting
If your amplifier does not appear to be working, check the obvious things first such as blown fuses,
poor or incorrect wiring connections, incorrect setting of crossover switch and gain controls, etc. There
is an illuminated red badge on top of the amplifier denoting the power state of the amp in addition to
the Protection LED on the end panel of your Kicker ZX series amplifier. When the red badge is lit this
indicates the amplifier is turned on and the amplifier is functioning properly.
ORED Badge Light off,
no
output? With a Volt Ohm Meter (VOM) check the following:
1)
+
12 volt
power terminal (should read
+
12V to
+
16V) 2) Remote turn-on terminal (should read
+
12V to
+
16V)
3) Check for reversed power and ground connections. 4) Ground terminal, for proper conductivity. 5)
Check for blown fuses.
ORED Badge Light on,
no
output? Check the following:
1) RCA connections 2) Test speaker
outputs with a "known" good speaker. 3) Substitute source unit with a "known" good source unit. 4)
Check for a signal in the RCA cable feeding the amplifier with the VOM meter set to measure "AC"
voltage.
ZX.4AMPLIFIER
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