Should I Use High or Low Level Inputs?
If the source unit has only speaker outputs, use the high-level inputs of
the Amplified Bazooka. If the source unit has both high and low level
outputs, we recommend using the high level inputs over the low level
inputs, due to the configuration of the Amplified Bazooka's balanced
input circuit. PLEASE NOTE THAT THE WIRING IN A FACTORY STEREO
MAY NOT BE ELECTRICALLY IN PHASE EVEN WHEN YOU HAVE MADE
THE PROPER CONNECTIONS. Take the time after you make your wire
connections to run through the quick phase check procedure in the AM
I IN PHASE? Section of this manual. NEVER USE BOTH high and low-
level inputs at the same time!
High-Level Inputs:
If the source unit has both front and rear speaker outputs, use only one set
of speaker outputs for the high-level input of the Amplified Bazooka.
Connect the GREEN wire from the 14-pin Molex plug of the Amplified
Bazooka to the source units left (+) positive speaker output. Connect the
GREEN W/BLACK stripe wire of the plug to the source units left (-) negative
speaker output. Connect the GRAY wire of the plug to the source units right
(+) positive speaker output. Connect the GRAY W/BLACK stripe wire of the
plug to the source units right (-) negative speaker output.
INPUT SIGNAL CONNECTIONS
PHASE ALERT
13
Am I In Phase?
If your inputs are out of phase and you turn the balance control of
your radio all the way to one side, right or left, the bass output from
the Bazooka will increase. When you bring the balance control back
to the center position the bass level will drop. This confirms that one
of your input channels is wired out of phase with the other. To correct
When one of the Amplified Bazooka's High-level Input channels is out
of phase electrically with the other High-level Input channel, your
Bazooka will sound as if it has little or no output and any output that
is produced may sound distorted. If you suspect that your Bazooka is
out of phase, use the AM I IN PHASE procedure to diagnose and cor-
rect the Bazookas' output, and proper bass response will be produced.
this situation, simply reverse the connections on ONE of the two input
channels. When the wiring is in correct electrical phase, the level of
bass output will be greatest when the balance control of the radio is
set to the center position.
LOW-LEVEL INPUT:
If your source unit only has low-level RCA phono jack output, use only
the low-level inputs of the Amplified Bazooka.
Connect the low-level RCA phono jack inputs of the Amplified Bazooka to
the source with a shielded RCA patch cord. To avoid possible noise prob-
lems, be sure to run the patch cord away from all power wires and facto-
ry wire harnesses.
When using the low-level inputs DO NOT make any connections to
the Green and Gray high-level input wires of the Amplified Bazooka
and make sure these wires are insulated to avoid the possibility of a
short circuit.
SIGNAL CONNECTIONS CONT.
SETTING THE LEVEL
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To set the level of the Amplified Bazooka, start with the control all the
way to the left. The bass should be off or very low at this point. Turn
up the head unit until the sound from the existing speakers starts to
clip or distort. This should be the max volume point of the system. Now
bring up the level of the Amplified Bazooka so that the bass volume
blends well with the other speakers in the system. This should be the
proper setting for the level control.