Owner's Manual and Installation Guide 5/3 Channel Power Amplifiers 255, 355, 555

( INSTALLATION STEP 4)
LEVEL SEmlNG
The input levels are adjusted by means of the input level controls located on the
front of the amplifier. This is a unique dual-stage circuit that adjusts both level and
gain. This topology maintains better S/N Ratio even when using sources with
minimal output.
In the ideal situation, all components in the audio system reach maximum undistorted
output at the same time. If you send a distorted signal to an amplifier, it is simply
going to amplify distorted information. The same holds true if an outboard proces-
sor or crossover begins to distort before you have maximum output from the ampli-
fier. By setting all components to reach clipping at the same time, you can maxi-
mize the output of your system.
For the RUBICON amplifier, follow these steps for
setting the input levels:
1.
Turn the amplifier’s input levels to minimum position (counter-clockwise)
,
\
\
2.
Set the source unit volume to approximately 3/4 of full volume.
I
I
,
3.
While playing dynamic source material, slowly increase the amplifiers’ input
,
level until a near maximum undistorted level is heard in the system.
FRONT SPOILER
Once the amplifier is installed and the
proper levels set, place the front spoi
I
position, and secure it using the suppl
ied hardware.
4 channels of input
2-way front/rear fade with constant level bass
4 channels of 2-way high pass, (rear de-emphasis engaged on 555)
subwoofer channel in low pass
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