OPERATION
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audio inputs
Automatic Turn-On Selection: The
OX
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.
• Remote Turn-On: Set the switch to + 12V to use the remote turn-on lead from your source unit.
Run
18
gauge 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.
• DC Offset Turn-On:
If
Remote Turn-On
is
not
an
option, the next best setting
is
DC
Offset. The DC Offset
mode detects a 6V DC offset from the HI-Level speaker outputs when the source unit has been turned on.
• Signal 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.
Input Level: The RCA inputs
on
KICKER
OX
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 for additional instructions.
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.
Set the switch to
LO
if
you want the
amplifier's internal crossover to serve
as
a low-pass
filter.
Never change the crossover "OFF/HI/LO" switch setting
with the audio system
on!
Crossover Control: The variable crossover
on
the front of the DX400.4 allows you to adjust the crossover
frequency from
50-200Hz.
The setting for this control
is
subjective; 80Hz
is
a good place to start.
Fader Switch: Depress the fader switch
if
you
are
running two sets of inputs (front and rear for example) to the
amplifier. Leave the fader switch
OFF
if
you want to drive
all
channels from a single stereo input.
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.
Bass Boost Control: The variable bass boost control on the side of the DX400.4 amplifier
is
designed to give
you increased output,
0-12dB,
at 40Hz. The setting for this control
is
subjective.
If
you turn
it
up, you must
readjust the input gain control to avoid clipping the amplifier. The DX200
.4
uses a switch to select between
OdB
and +9dB of bass boost at 40Hz.
5
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