Instruction manual
DESCRIPTION
The
McIntosh
Model
Mc-30
is
a
30
watt
high
fidelity
power
amplifier
designed
for
home
entertainment
systems
and
professional
applications.
The
Model
Mc-30
is
similar
to
the
earlier
McIntosh
Model
A-116
30
watt
amplifiers
and
includes
all
of
the
rigid
electrical
specifications
and
features
found
in
these
earlier
units
plus:
less
than
0.3%
harmonic
distortion
at
any
power
output
up
to
30
watts
and
at
any
frequency
in
the
audio
spectrum,
20
to
20,000
cps;
less
than
0.5%
intermodulation
distortion
if
instantaneous
peak
power
is
below
60
watts
for
any
combination
of
fre-
quencies
20
to
20,
000
cps;
and
noise
and
hum
level
90
db
or
more
below
rated
output.
The
famous
McIntosh
high
efficiency
output
circuit
is
used
to
obtain
the
high
standard
of
performance
found
in
this
amplifier.
The
Mc-30
may
"be
operated
from
any
signal
source
delivering
0.5
or
more
volts,
or
directly
from
a
McIntosh
Audio
Compensator
or
Pre-Amplifier,
such
as
the
Models
C-S,
C-104,
or
C-10S.
Output
impedances
of
4,
Sand
16
ohms
are
provided
for
direct
connection
to
loudspeakers.
An
additional
600
ohm
output
is
present
for
use
with
lines,
etc.
INST
ALLA
TION
Location
The
Mc-30
should
be
located
in
a
ventilated
area.
If
the
amplifier
is
housed
in
a
cabinet
or
other
enclosure,
holes
should
be
provided
for
air
circulation.
Input
Connections
1.
When
a
McIntosh
Audio
Compensator
or
other
McIntosh
pre-amplifier
is
used
with
the
Mc-30,
plug
the
pre-amplifier's
output-power
cord
into
the
"Pre-Amp
input"
receptacle
on
the
Mc-30
and
turn
the
"gain"
control
fully
counter
clockwise.
This
receptacle
supplies
the
required
plate
and
filament
power
to
the
pre-amplifier
equipment
as
well
as
providing
the
necessary
audio
connection.
For
pre-amplifier
installation
and
operation
refer
to
the
pre-amplifier's
instruction
manual.
2.
When
a
signal
source
of
O.
5
volts
or
more
is
used
to
drive
the
amplifier,
such
as
the
output
from
a
tuner,
tape
recorder,
or
pre-amplifier,
plug
the
source
into
the
"0.5
volt
input"
pin
jack
receptacle
or
connect
to
the
"0.5
volt"
and
"GND"
screw
terminals.
Use
the
"gain"
control
to
obtain
the
desired
operating
level.
If
desired,
the
signal
source
may
be
wired
to
an
octal
plug
for
insertion
in
-1-