Installation: Balanced / Unbalanced Inputs - Soundstream Rubicon 1002 Owner's Manual And Installation Manual

INSTALLATION STEP 2
BALANCED / UNBALANCED INPUT
The RUBICON502 and 1002 amplifiers have the ability to accept either a stan-
dard 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 Unbalanced RCA
outputs (Industry Standard).
2. No Interface module is
necessary.
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 R/GM 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 you experience alternator wine or other instal-
lation noise with both switches in the "UNBAL" position, try moving the LEFT
channel input signal switch to the "BAL" position. This should remove any
system noise due to the installation.
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).
other balanced line audio source. For the pin configuration, see the diagram
below:
"NOTE: The pin configura-
tion shown in the diagram
is the view looking into the
Balanced input jack o n the
UNBALANCED INPUT
Using the "Balanced" RCA Input
-15 Volts*-,. zr + 15 Volts
+ left Signal
1. Improved Signal to Noise Ratio
(S/N Ratio).
2. Excellent noise cancellation
characteristics.
3. Immune to noise radiated in the
car audio environment.
BALANCED
+ Right Signal
Shield