Pioneer SX-939 Operating Instructions Manual page 9

ee R PIONEER
Connections for Playback
@ Connect the receiver TAPE 1 PB input jacks to
the playback output jacks (LINE OUTPUT or
TAPE MONITOR) on the tape deck. The upper
jacks of each pair are the L (left) channels,
and the lower are the R (right) channels.
NOTE:
If the ADAPTOR IN jacks are to be used, connect
them to the tape deck output (LINE OUTPUT) jacks.
@ When using two tape decks, the second tape
deck should be connected to the receiver TAPE
2 PB input jacks. If, however, the first deck
has been connected to the DIN-type recording/
playback connector (TAPE 2 REC/PB), the
second deck should be connected to the TAPE
1 PB input jacks.
USE OF THE AUX INPUT JACKS
These jacks are a set of spare input jacks. They
can be connected to cartridge tape players,
television sound multiplex tuners, or other forms
of signal output.
The upper of the two terminals is the L (left)
channel, and the lower is the R (right) channel.
USING THE PRE OUT AND POWER IN JACKS
If the connections between the PRE OUT and
POWER
IN jacks shown in Fig. 11 are removed,
the power amplifier and pre-amplifier sections can
function separately.
Fig. 11
Connections for Setting up A Multi-amplifier
one or two additional power amplifiers, a two- or
three-way multi-amplifier system can be set up.
The multi-amplifier system splits up the audible
frequency range into different frequency bands,
operating amplifiers and speakers ideally suited to
each band. This results in reduced intermodulation
distortion and improved damping and crossover
characteristics. Use of the multi-amplifier system
enables construction of the ideal playback system.
Connections for a two-way multi-amplifier system
are as follows:
1. Remove both of the plugs bridging the PRE
OUT and POWER IN jacks.
2. Connect the PRE OUT jacks to the input jacks
of the crossover network.
3. Connect the POWER IN jacks to the LOW range
jacks of the crossover network.
4, Connect the HIGH range output jacks of the
crossover network to the input jacks of a
separately bought power amplifier for the
high frequency range.
5. Connect the speakers for the lower frequencies
to the receiver, and those for the higher fre-
quencies to the separate amplifier.
The levels of the different frequency ranges are
adjusted at the crossover network. For detailed
instructions on the use of the crossover network,
please refer to the instruction manual provided
with it.
SPEAKER SYSTEMS
$X-939 RIGHT SIDE
TWEETER
CROSSOVER
NETWORK
WOOFER
POWER AMPLIFIER
(HIGH-RANGE)
Fig. 12