Pioneer SX-980 Manual de instrucciones - Página 17
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Fig. 21
USING
PREAMP
OUT AND
POWER AMP
IN JACKS
If the connections
between
the
PREAMP
OUT
and
POWER
AMP
IN
jacks
are
removed
(see
Fig. 22),
it is possible
to use
the
preamplifier
section and the power amplifier section independ-
ently. However,
for normal use always keep these
connections in place since once you remove them,
no
sound
will
be heard
through
the
speakers.
Always
set
the
POWER
switch
to OFF
when
removing or replacing these connections.
Fig. 22
INDEPENDENT PREAMPLIFIER SECTION
As
shown
in Fig. 28, you
can
connect
a high
output power stereo power amplifier or
a home-
built power amplifier to the PREAMP
OUT jacks
and compare
the sound with the power amplifier
section of the stereo receiver.
Power amplifier
mpur
Fig. 23
PIONEER
INDEPENDENT
POWER
AMPLIFIER
SECTION
As shown
in Fig. 24, you
can
connect
a stereo
amplifier
which
you
may
have
to the POWER
AMP
IN
jacks
and
compose
your
own
stereo
system.
Preamplifier
ppoo#o°
;
eoeod
0
cof
y
Fig. 24
COMPOSING A MULTI-AMPLIFIER SYSTEM
As shown in Fig. 25, you can compose your own
multiamplifier system if you connect an optional
stereo
power
amplifier
and
crossover
network.
A
multi-amplifier
system
splits up
the
audible
frequency
range into different frequency
bands.
Each
of these
bands
is then
amplified
by the
amplifiers and so this has the advantage of reducing
intermodulation distortion.
Crossover network
HIGH RANGE
Power amplifier
OUTPUT
OEE 000 6x6
FACE
O
FOE
OM
o_O
=>
LOW
RANGE
OUTPUT
POWER
AMP
IN
Tweeter
Woofer
Tweeter
-
Woofer
L.A
Z-way multi-amplifier system
'
Fig. 25
17