Owner's Manual Car Stereo Preamplifier RUBICON 502 702 1002
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Front View
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KEY TO
CALLOUTS
Power LED
-
Indicates amplifier power, either in High Power or Auto High
Current.
Clip Indicators
-
Indicates the signal output level is too high and the output
stage of the amplifier is clipping.
Subsonic, Hawkins Bass Control, H.P. Xover Switch
-
Selectable high pass
filter frequency range.
Select “SUB SONIC” to engage the Sub Sonic filter
with no boost. Use the knob indicated by callout
#I2
to set the frequency:
13-30Hz).
Select “Hawkins Bass Control” to engage the Sub Sonic filter
with available boost. Use the knob indicated by
callout
#I2
to set the
frequency: 30 Hz to 70 Hz. Select
“H.P.
XOVER” to engage the amplifier’s
high pass filter for running satellite speakers. Use the knob indicated by
callout
#I2
to set the frequency: 70-I 60 Hz.)
Low Pass XOVER Switch
-
Selectable low pass filter for driving subwoofers.
Use the knob indicated by callout
#I3
to set the low pass frequency.
Note:
Do not have the
*‘L.P
XOVER” and the
“HR
XOVER” engaged at the same
time.
MONO/SUM/ST Switch
-
“MONO”
for bridged mono operation with a single
input signal (right channel only).
‘SUM” for bridged mono operation sum-
ming two input signal (left and right).
“ST’ for normal stereo operation,
Left Channel Balanced/Unbalanced Input Selector
-
Select “BALANCED”
to use the 6 pin Balanced signal input. Select “UNBALANCED” to use the
RCA signal inputs.
Right Channel Balanced/Unbalanced Input Selector
-
Select “BALANCED”
to use the 6 pin Balanced signal input. Select “UNBALANCED” to use the
RCA signal inputs.
RCA Inputs
-
Right and Left channel RCA (Unbalanced) inputs.
Balanced Signal Input Connector
-
6-Pin Balanced input connector for use
with the Soundstream
BLT/BLT4
Balanced Line Trasmitter.
Input Levels
-
Independent Left and Right input level controls.
Hawkins Bass Control “Boost” Adjustment
-
Varies from 0 to
+9
dB
of
boost when the Hawkins Bass Control circuit is engaged.
High Pass Filter Control Adjustment
-
Frequency adjustment control for the
High Pass filter, the Hawkins Bass Control filter, or the Sub Sonic filter.
Low Pass Filter Control Adjustment
-
Frequency adjustment control for the
Low Pass filter.
Line Outputs
-
Line level RCA outputs to drive an external amplifier (Note:
The outputs are full-range.)
Speaker Connection Terminal
-
Speaker connections for Ch’s 1
&
2.
REMOTE
-
Remote turn-on input from the head unit. Accepts
+12V.
GND
-
Main ground connection. Bolt to a clean chassis point in the vehicle.
+12V
-
Connected to a fuse or circuit breaker, then to the battery’s positive
terminal
FUSE
-
Main power supply fuse. Warning: Replace only with the same
value fuse!
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