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UPGRADING YOUR STEREO
4-Channel Stereo System
The sound we hear daily is a mixture of the sound
that reaches
our
ears
straight from
the sound
source—be
it a musical instrument, a jet, a man's
mouth cr what have you—and the 'indirect sounds'
that arrive at our earsonly after they are reflected
off various surfaces, such as the walls, ceiling and
so forth. Four-channel recordings are made using
two microphones in the front of the concert hall and
two in the rear (to simplify the explanation).
The
'indirect sounds' with their complicated waveforms
are mainly picked up by the two microphones in the
rear, and reproduced out of the two rear speakers
in a 4-channel stereo set-up for greatly enhanced
'ambience' effects.
The effect is almost as if the
original live performance were re-played right in
your own room.
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This new approach can now
be yours simply by
adding certain
equipment—mainly,
a Sansui
4-
channel rear amplifier with its unique QS (RM)
synthesizer decoder matrix (patents pending), and a
second pair of speaker systems—to your 2-channel
stereo system.
Connection of such a rear amplifier
or 4-channel adaptor is easy. Just connect the 4-
CH ADAPTOR
2-CH OUTPUT
terminals of the
AU-6500
with
the input terminals of such rear
amplifier or 4-channel adaptor, then connect its 4-
CH ADAPTOR INPUT terminals with the output
terminals of such unit.
To operate the rear amplifier or 4-channel adaptor
so connected, push the 4-Channel Adaptor Switch on
the amplifier's front panel, and otherwise follow its
manufacturer's instructions.
Electrically, the 4-CH
ADAPTOR
2-CH OUTPUT and INPUT terminals
possess the some functions as the TAPE
REC and
MON terminals, respectively.
4-CHANNEL
REAR AMP.
4-CHANNEL
ADAPTOR
Electronic Crossover system
Electronic Crossover System
Using the AU-6500
ELECTRONIC
CROSSOVER
DIVIDER
PROGRAM
70)
8] £69
WOOFER
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