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b. If the preamplifier and power amplifier sections of the
unit
cannot
be
used
separately,
a three-way
stereo
system
may
be constructed
as shown
at right (For a
two-way system, omit the midrange channel ).
4, 3-dimensional system
A 3-D stereo system can be constructed
essentially in
the same way as explained in 1, 2 and 3 on the previous
page, except for the low-channel
range
connection.
The
low-channel output should be derived from the CENTER
CHANNEL
terminal of the SF-700 and connected to a
monophonic
power
amplifier.
A 8-D system does not
require
a stereo
power
amplifier
for the low-channel
range
and,
hence,
requires
only
one
woofer
in the
system.
One consideration
in constructing a 3-D system is to
set the
crossover
frequency
between
the
low
and the
middle
channel
ranges
to
either
125 Hz
or
250 Hz,
because the 3-D system makes use of the non-directional
characteristic of low frequencies.
MULTICHANNEL
AMPLIFIER
SYSTEM
CONNECTIONS
PREAMPLIFIER CONNECTION
Connect the INPUT
of the SF-700 to the output jack of
your preamplifier. If your stereo amplifier contains both a
preamplifier
and
power
amplifiers
which
can
be
used
separately,
connect
the
INPUT
of
the
SF-700
to the
PREAMP OUTPUT of the amplifier.
Note that the INPUT jack on top is for the left-channel
connection,
and
that
the
one
on
the
bottom
is for the
right-channel
connection.
Be sure that the left and right-
channel INPUT jacks of the SF-700 are properly connected
to the corresponding channel output jacks of the preampli-
fiers.
3
TWEETER
(OR)
HIGH RANGE
1
a
Rec | MONITOR
MID RANGE,
HIGH]
MIO RANGE
(LR)
ss
| ry
il
OOOO.
Low RANGE
E
+9
STEREO PRE-MAIN AMP,
SA-700
Fig. 5
TWEETER
(LR)
-———
STEREO RECEIVER
pivioING
Nate ANGE
OR STEREO PRE-MAIN AMP.
NETWORK
(LR)
a}
wooreR
(CENTER CHANNEL)
CENTER ans
{eo _
|
Eel
POWER AMP.
Fig. 6
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