Pioneer SX-424 KCW Manual de instrucciones - Página 9
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PtoNEefit
A
WORD ABOUT ROOM ACOUSTICS
The
quality of
reproduced sound
varies
according
to the
size
and
shape
of
the room, the materials
of
the walls,
floor
and
ceiling and the amount and arrangement
of
furniture.
Too
"harsh"
or "bright"
a
sound
usually results
from too
many
hard reflecting surfaces, and/or
too low
a
ceiling.
This condi-
tion
js improved by
having an ample carpeted
area
or
covering
the wall
(especially
that
facing the
speaker systems)
with
a
thick curtain.
On
the other hand,
too
many absorbing surfaces
will
tend
to
"soak
up"
the sound, resulting in
a
certain "dead-
ness."
Furniture may
be
rearranged
to
provide
irregular reflec-
tion of
the sound.
In
any event, the true
stereo
effect
is
lost
if
the two
speaker systems are placed
too far
apart.
This may
be corrected
by
angling
them slightly toward
each
other or
reducing the distance between them.
4.CHANNEL
STEREO SYSTEM
Conventional 2-channel stereo systems are designed so that
instrumental and vocai music can be reproduced
in
stereo
through
left
and
right
speakers
placed
in front of the
listener.
In
contrast,
the newly
developed 4-channel stereo
system
features
a high
degtee
of
reproduction
of full
dimensional
sound including the atmosphere and
applause
in
a
concert
hall in addition to
stereo sound
from
singers
and instruments.
Consequently,
you
can get magnificently
lifelike
4-channel
sound
far
superior
to
that
of
2-channel
stereo.
The Pioneer 4-channel Decoder Amplifier, model QL-600A
combined with
your
SX-424, and
two
additional
speakers
gives
you
4-channel
sound.
See
Fig.1tr.
HOW
TO
USE
THE 4-CHANNEL
DECODER
AMPLIFIER
OL-6OOA
To obtain
4-channel sound, combine
the
Pioneer QL-600A
with
your
SX-424. The QL-600A
has
a matrix
decoder
circuit
for
converting
a
2-channel stereo signal
into a
4-
channel stereo signal
plus amplifiers
for
driving the two
rear
speaker
systems. As
shown
in
Fig.
12,
the eL-600A
can be
plugged
into the TAPE
2 REC and
TAPE 2 MON jacks
of your
SX-424, giving you
4-channel
sound
of
the REG-
ULAR or
SQ
MATRIX
type.
With the MATRIX
system,
matrix
recordings
or FM
stereo broadcasts are reproduced
to
perfection.
What's more,
with
a 4-channel stereo tape deck
(Pioneer QT-6600,
for
example) connected
to the
eL-600A
as shown
in
Fig.
12,
discrete 4-channel tapes can be
re-
produced.
FRONT
LEFT
SI
DE
RIGHT
SI
DE
REAR
CARTR IDGE
TAPE
PLAYER
Fis.
11
Fig.
12