Rockford Fosgate 4-CHANNEL AMPLIFIER - Manual (Page 10)

Input/Output Terminal Side
7
Front Treble
Adjustment
Control
Front Bass
Adjustment
Control
Front Input
Gain
Control
Rear Treble
Adjustment
Control
Rear Input
Gain
Control
Rear Bass
Adjustment
Control
This switch allows you to use the front input to drive both
Front and Rear channels. Switching to Rear position
allows you to run separate Front and Rear inputs. This
eliminates the need for a "Y-adapter" when using the
amplifier in a bi-amplified or 4-Channel mode.
This switch enables you to easily invert the phase of the
Rear channels on the amplifier without having to discon-
nect the speaker wires. See the wiring diagram on page
17 for use.
These controls adjust the amount of treble and bass
response desired. To increase the amount of response,
turn the controls clockwise; to decrease, turn the controls
counterclockwise. Note that there are separate Bass and
Treble controls for Front and Rear channels.
These controls are factory preset to 500 millivolts to
match most head units and are variable from 100 millivolts
to two volts. (
More than likely they will not need
adjusting.)
If just a little volume from the source unit drives the
amplifier into distortion, reduce the input gain controls so
that the distortion doesn’t start until the source volume is
at about 3/4 of its rotation. Note that there are separate
Front and Rear gain controls.
0/180
°
Rear
Phase
Selector
Switch
Front/Rear
Input Switch
Treble/Bass
Input Gain
Controls
Front+Rear
Summed Pass-Thru
Connectors
Rear Input
Connectors
Front Input
Connectors
0/180
°
Rear
Phase Selector
Switch
Front/Rear
Input Switch