First. let
us in
model OM-800.
4-channel stereo installation,
preamplifier,
us thank
purchasing
sources. Engineered
open
up a whole new
Please read
that
all connections
will reveal
800
you
for the
Pioneer
the
This amplifier is
4
speaker systems
for
following
the
are
its true
performance
quadraphonic power
highest sound fidelity, it
world of
instructions
made
confidence
together
and one or several
"environmental
correctly
you
designed to serve in
with
carefully to assure
and that the
quality.
have
amplifier.
4-channel
a
program
sound."
shown
a
will
OM-
FEATU
DIRECT COUPLING
Direct coupling
phase
characteristics
quency
supply
unit is
RES
of all
and
response
down
employed, and output
OF ALL STAGES
amplifier stages
permits
to near-DC. A load-regulated
an extremely wide fre-
will ever be required.
LEVEL
To
four
meters'sensitivity can be adjusted in
and
levels.
ADJUSTABLE
As the
in
any
LINE
METERS
obtain
optimum sound balance in a 4-channel system,
separate level
dB)
-20
power
6dB steps
preamplifier
VOLTAGE
FOR ALL FOUR CHANNELS
meters are
permit
to
lNPUT
amplifier's input
(at
0.5, 1 and 2 volts), it is
accurate
SENSITIVITY
provided.
readings
sensitivity can be adjusted
AND FUSE
greatly
power
is higher than
Moreorrer, the
three stages
at all
to
easy
match
improves
power
(0,
-10
volume
with
SPECIAL
ln addition to
a set
OM-800
a multi-amplifier installation.
PERFECT
TRANSISTORS
The output
case of overload
system of relay and
dual
The latter also
DC current.
UNIOUE
front
The
With
other
HIGH-RANGE
the four normal.
of high-range
can
be used as
speaker
an exclusive
PROTECTION
AND
transistors
guard
PIONEER
panel
its natural
Pioneer hi-f i components
are
or short-circuits
DC
against
EXTERIOR
is
attractive
wooden cabinet,
SPEAKER
full-range
outputs are
high-range
OF OUTPUT
SPEAKERS
protected
drift voltage
possible
as well
from
in
the speaker leads) by
as
the
perfectly.
OUTPUTS
speaker
terminals.
provided.
amplifier in
STAGE
damage
detector circuits.
speaker
DESIGN
logically
OM-800 matches
(in
damage
laid
The
the
a
by
out.
CHANGING
To
remove
voltage
selector
the fuse plug
Put
the fuse
can
be
seen
ever
of
or
130V
If
FUSE
If
with
position
the
the fuse.
24OY
the rating
the
operation
operation.
REPLACEMENT
fuse
new
a
LINE VOLTAGE
the fuse,
from
plug
through the
in the
the unit.
back so
of the
turn
direction
that the
cut in
selector is
A 2-ampere
and a 4-ampere
of the fuse is
blows, remove
one.
AND
the fuse
of
proper
the edge
is
to be
conect,
the fuse
FUSE
cap located
on
the arrow. Then
line
voltage
for
cap.
plug.
either
110V,
of the
changed, check
used
fuse for
replace
cap
and replace
the
line
remove
marking
When-
the rating
220V
I20V,
the fuse
oft the
FUSE CAP
fuse cap
cotN
Take
in the direction indicated by the arrow
FUSE
turning it with a
by
FUSE PLUG
coin, etc.
mark.
SOCKET
r'IOI\IEER
COMPOS
To
compose
state
Quadraphonic
a 4-channel
speaker
When
stereo tuner,
systems as shown
the
ITION
a 4-channel
tape
deck, a 4-channel preamplifier,
QM-800
a turntable,
Power
is
raphonic preamplifier
(Pioneer
channel
of a
4-channel
work
(separately
installed
can
be
set up.
QC-800,
program
as
shown in Fig.
for
source
performance.
available,
OF 4.
stereo system,
Amplifier,
Fig.
in
combined
four speaker
equipped
instance)
can
be reproduced
If
Pioneer
3,
a 2-way multi-amplifier
CHANNEL
the
QM-800,
can be combined
1.
with a tape deck,
systems,
with
quadralizer
a
as shown in Fig.
electronic
an
SF-500 or
and
in a
high
crossover
SF-700.)
a solid
with
four
and
AM/FM
quad-
a
circuit
2,
a 2-
degree
system
STEREO
net-
is
4 CHANNEL
STEREO
PREAMPLI
(oc-800)
SYSTEM
4 CHANNEL
TAPE
DECK
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TURNTABLE
TAPE DECK
PREAMPLI
(sc-700,
sc-1001
ELECTRONIC
CROSSOVER
NETWORK
(sF-500)
{sF-700}
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SYSTEMS
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TURNTABLE
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SPEAKER
SYSTEMS
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