Figure
9.
Front
Panel
Controls
and
Jacks
DIMENSION
The DIMENSION control
is
operative
only
when
the MODE Switch
is
set
to
the
VARI-MATRIX
position. This control optimizes the 4-channel
VARI-MATRIX
effect.
sa DECODER
With the MODE Switch on
SO
DECODER, any
rear
input
signals
to
the 4300
are
internally
dis-
connected. The rear channel outputs
are,
in-
stead,
derived
from
front
channel
signals
which
have
been
processed
by the plug-in decoder. The
characteristics
of
these
derived rear channel
out-
puts
are
determined by the type
of
plug-in
decoder.
Use
sa DECODER position only with
an
optional
plug-in decoder installed. Without this optional
decoder, there will
be
no
output
when the MODE
Switch
is
on
saDECODER.
BALANCE CONTROLS
The Model 4300
has
three BALANCE Controls:
FRONT L-R, REAR L-R
and
FRONT-REAR.
The FRONT
L-R
slide knob adjusts the balance
between the
front
channels. The REAR
L·R
slide knob adjusts the balance between the rear
channels. The FRONT·REAR slide knob adjusts
the balance between the
rear
and
front
pairs
of
channels.
The balancing technique described must
be
carried
out
in MONAU
RAL
MODE. To balance
the
front
channels, first
set
the FRONT-REAR
control all the way
to
the FRONT
to
silence the
rear
speakers
while you adjust the FRONT L-R
BALANCE control. To balance the rear channels,
move the FRONT·REAR control all the way
to
REAR,
and
then adjust REAR L-R BALANCE.
Now you
are
ready
to
adjust the FRONT-REAR
control
for
the most pleasing overall balance.
SELECTOR SWITCH
The SELECTOR Switch selects the program
source
for
listening or recording. The switch
can
select any
of
six sources:
AM,
FM, PHONO,
CD-4/AUX, TAPE 1 and TAPE
2.
BASS,
MID
AND
TREBLE CONTROLS
These
controls
are
used
to
adjust the tonal
balance
of
program material
to
suit
your
indio
vidual listening preference. The
bass,
midrange
and
treble
responses
are
adjusted
by
dual-con-
centric, friction-coupled controls. With the
BASS,
MID
and TREBLE controls
set
at the center
position, frequency
response
of
the amplifier
becomes
flat.
The larger (outer) knob adjusts the
response
of
the
front
audio channels, while the smaller (inner)
knob adjusts the rear audio channels.
Turn the Tone Control knobs clockwise
to
boost
or counterclockwise
to
attenuate their respective
frequency
ranges.
MONITOR SWITCH
When
the MONITOR Switch
is
placed in the
TAPE 1
or
TAPE 2 position, the signals connect-
ed
to
the tape
input
jacks will
be
played back.
To play a tape recorder that
is
connected
to
the
TAPE MONITOR 1 jacks, select TAPE 1
on
the
SELECTOR Switch.
To
monitor
the tape on a
three-head recorder during recording,
place
the
MONITOR Switch in the TAPE 1 position.
To
playa
tape recorder that
is
connected
to
the
TAPE MONITOR 2 jacks, select TAPE 2
on
the
SELECTOR Switch.
To
monitor
the tape on a
three-head recorder during recording,
place
the
8
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