OPERATION
POWER ON-OFF SWITCH
To turn amplifier on simply depress the power button. The power indicator
lamp will illuminate to indicate the amplifier is operating. With the switch in
the outward position, normal stereo operation is resumed and the amplifier is
off.
EQUALIZER TONE CONTROLS
Ten slide controls have been built-in for total tone control of the entire audio
reproduction range. These controls will vary the tone range from Bass through
Treble with the Bass controls at the left, the Mid-Range controls in the middle
and the Treble controls at the right.
Since tone quality is an individual application, we recommend you start all
ten controls in the mid-position. With all ten controls at the mid-position ad-
just each control to your personal taste. By moving the control upward you
will emphasize that range. (example-Bass control moved upward will empha-
size Bass tones, moving it down will de-emphasize Bass tones).
A visual inspection of the setting of the ten controls will provide a graphic
illustration of your actual response curve showing which ranges are empha-
sized and which are de-emphasized. Each slide control can vary response
(from the mid-position detent) upward by 12db or downward by 12 db, for a
total variation range of 24 db.
NOTE: For the best operation of the amplifier, set the tone control of your
stereo system at a mid-position.
LED POWER LEVEL METERS
These LED's will sequentially illuminate from one to five providing a relative
indication of the peak power output from the unit. Power output is controlled
by the volume control of your in-dash stereo system.
VOLUME
The volume level of the amplifier is controlled by the volume control of your
existing stereo system. Avoid setting volume at maximum levels since you
are at maximum distortion levels which the amplifier will reproduce.
FRONT/REAR FADER CONTROL
When wired to four speakers as shown in the wiring diagram for 4 speakers,
the fader control will vary volume level to either the two front or two rear
speakers depending upon the setting of the control. Adjust the Fader control
for balanced front-to-rear sound. NOTE: Fader control will operate with unit
"off" for use in normal stereo operation.
The balance control on your existing stereo system will control sound level to
the two left and the two right speakers. Adjust this control for balanced left-
to-right sound. NOTE: If your existing stereo system had both Left-Right and
Front-Rear controls you will find that the method of wiring it to the AMP-772
has made the Front-Rear control inoperable. The front-rear fader control on
the AMP-772 will operate in place of it. You will also notice that even with
amplifier off you will not have use of the stereo's front-rear control. The fader
control on the AMP-772 will still operate even though the unit is off.
When wired to only two speakers, the built-in fader control on the amplifier
will not operate. Only the existing Balance control on your stereo sound
system will work. Use the Balance control as you normally would and set the
fader control to the mid-position.
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