INPUTS
There are two sets of RCA jacks on the front end of your amplifier. The RCA cables from your source unit go in the set labeled INPUTS. If your source unit doesn’t have RCA outputs, then add a set of RCA plugs (available at your dealer) to your front or rear set of speaker leads (see drawing below). Plug them into the input jacks, and push in the
SOURCE Headunit
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| BASS | TREBLE |
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VOLUME | BALANCE |
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| PPI |
| MAR KET ING DPT | |||||||||
LEFT | RIGHT | FOWARD |
| REVERSE |
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(+) Positive
LEFT input
(+) Positive 
RIGHT input
ADVANCED INSTRUMENTATION INPUT
The Advanced Instrumentation Input has been incorporated from the legendary PrecisionPowerTM 2500F1. This circuit completely isolates the chassis ground from the audio circuit of the amplifier and reduces noise radiated into your signal cables by up to 40dB. This is equivalent to a noise reduction of approximately one hundred times what the noise level would be without this circuitry. It provides all the benefits of a true balanced line without the need of any special cables (see diagram below). This type of input works with any conventional RCA cables.
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