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~INSTALLATI~N
STEP
I
)
(
INSTALLATION STEP 2
)
SELECTING THE SPEAKER OUTPUT MODE
The
RUBICON
Class A 10.2 and 5.2 amplifiers have the ability to operate in
any one of the following modes:
Stereo
(STACT/Mjx&
Mono): Use this mode for either stereo operation (left
and right channels) or for Mixed Mono operation (stereo left and right channels
plus bridged mono for a subwoofer).
Summed Mono: Use this mode to get a bridged mono output while using both
the left and right inputs and gain controls.
Bridged Mono: Use this mode to get a bridged mono output while using only
the right channel input and gain control (for use with a singular mono input).
Please follow the wiring schemes below for the correct operation:
‘+dONO
\
//’
BRIDGED
iiON
-
L+
-
R+
STEREO
-
L+
- R+
,-
/
‘.
__
-
--_
/
,J’
\
\
SUMMED MONO
-
L+
-
R+
The RUBICON
Class A
10.2 and 5.2
amplifiers have the ability to accept either
a standard Unbalanced RCA signal input, or a Balanced “Pro Audio” style input
signals with the use of the Soundstream BLT Balanced Line Transmitter or some
other balanced line audio source. Before installing your system, you should
decide upon which signal type you wish to run. There are advantages to both:
1. Most preamplifier
/
source units have
I.
Improved Signal to Noise Ratio
(S/N Ratio).
I
ADVAMAGES
I
Unbalanced RCA outputs
I
2.
Excellent noise cancellation
(Industry Standard). characteristics.
I
I
2.
No
Interface module is
3. Immune to noise radiated in
necessary.
the car audio environment.
I
The
RUBICON
amplifiers’ signal inputs accept a wide range of input level: from
300
mVrms
to 5.0 Vrms for both Balanced and Unbalanced inputs. For the best
S/N Ratio, we recommend that the input level controls be set as far down as
possible (rotated counter-clockwise), while maintaining an acceptable level of
output.
Using the “Unbalanced” RCA Input
When using the Unbalanced RCA input, the RIGHT channel input signal switch
MUST be in the “UNBAL” position. Also, when first installing the amplifier using
this input configuration, we suggest that the left channel input signal switch be in
the “UNBAL” position as well.
If vou
exDerience
alternator wine or other instal-
lation noise with both switches in the
“UNBAL”
position,
try
movina the LEFT
channel
inout
signal switch to the “BAL”
Dosition.
This should remove any
system noise due to the installation.
Using the “Balanced” RCA Input
When using the Balanced
6-pin
DIN audio input, both switches MUST be in the
“BAL” position. Also, we recommend that when using this input configuration, the
input level controls be set to the “minimum” position (rotated counter-clockwise).
.
The system gain should then be
other other balanced line audio
gram below:
adjusted on the BLT Balanced Line Transmitter,
source. For the pin configuration, see the dia-
BALANCED
-75
van
-
Left
Signal
t
+ 75 Volts
-
Right Signal
+
Leff
Signal
I
+ Right Signal
Shield
11