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center conductors, but the cable shield ground must be connected to the source chassis, NOT the
speaker negative (-) wires.
Be sure to route the Power
wiring harnesses, to avoid noise coupling.
Pre-assembled interconnect adapters are available from Rockford Corporation's Perfect Interface
division for a wide variety of source units.
NOTE: In most Pioneer pre-amp output units, and some others, the audio shield ground is not at the source
chassis common. For these units, connect the shield line to both the audio shield and the chassis common.
INPUT LEVEL CONTROLS
The Power 1OOHD input level controls are accessible with a jeweler's screwdriver through four holes
in the cover. The controls are factory-preset to a level which matches most 500 millivolt to 1 Volt
rated preamp-output source units. If you are using the amp in bridged stereo or bi-amp stereo adjust
only the controls labeled 2-channel/4-channel front. If you are using a fader before the amplifier then
adjust all four channels. (See Figure Four)
If you are using the speaker-outputs leads of the source unit, turn the Power 100HD
fully counterclockwise to their minimum gain position.
If the volume control of the source is "touchy" and/or noisy and if just a little volume from the source
drives the amplifier into distortion, reduce the Power 100HD input gain controls so that the distortion
does not start until the source volume is at about 3/4 of its rotation.
If the maximum volume from the source does not drive the Power 100HD into distortion, increase
the Power 1OOHD input gain controls until distortion starts at about 3/4 volume.
100HD
signal input cable away from the White power wire and the car's
3
input controls
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