Sansui QS-500 - Page 10

ADJUSTMENTS
Having read the foregoing instructions on the func-
tions and connections of your newly acquired QS-500
and proper speaker positions, you are now almost
ready to step into the immensely richer world of 4-
channel stereo. Before you step out, however, make
the following adjustments and you'll save yourself
a lot of trouble in the future.
Setting for Optimum Input
Signal Levels
1. Turn down slightly the volume controls of your
QOS-500 and front-channel amplifier, and turn the
Level Set Control of your QS-500 fully counter-
clockwise. Then turn on their power switches.
2. Turn on the tape monitor switch of your front-
channel amplifier.
3. Set the unit’s three balance controls to their re-
spective center positions.
4, Operate your front-channel amplifier and play a
record just as you would do in 2-channel sound re-
production. __
5. Turn the Level Set Control clockwise gradually,
and you'll notice the four VU meter pointers begin
to swing. Leave the control where the front-chan-
nel VU meters swing as far as the red 1 or 2 mark
at the loudest passages of the music. The Level Set
Control, consisting of two friction-coupled knobs,
permits separate adjustment of the left and right
channel input signal strengths, should they be out
of proportion with each other.
NOTE: If your radio tuner and tape decks also have
provisions for adjusting their output signal levels,
match them to the output level of the phonograph
(or turntable or record changer). This will save you
the trouble of readjusting the Level Set Control (or
Volume Control) every time you change the pro-
gram source.
Adjusting Volume Balance between
the Front/Rear Channels
1. Set your QOS-500’s three balance controls at their
respective center positions.
2. Turn the unit’s Volume Control all the way up
to the maximum, turning down the front-channel
amplifier’s volume control simultaneously so as to
obtain the loudest volume you can tolerate in daily
listening. |
3. Now turn down your QS-500’s Volume Control
to the usual listening level, and then adjust the Rear
Volume Control to achieve optimum balance be-
tween the front and rear channels.
4. Once the above adjustments are finishedl, use the
QS-500’s Volume Control to make any temporary
volume adjustments in the course of daily listening.
Adjusting Volume Balance between
the Front Left/Right Channels
Adjust the volume balance between front left and
right channels by fixing the balance control of the
front-channel amplifier in its center and then mani-
pulating the QS-500’s Front Balance Control.
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