McIntosh C30 Owners Manual

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INSTRUCTION MANUAL
MCINTOSH MODEL MC-30
30 WATT POWER AMPLIFIER

Type A-11GB

Serial #9E341 and above

038-243

MCINTOSH LABORATORY, INC

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DESCRIPTION

The McIntosh Model MC-30 is a 30 watt high fidelity power amplifier designed for home en-
tertainment 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 1/3% 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
l/2% intermodulation distortion if instantaneous peak power is below 60 watts for any combin-
ation of frequencies 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 per-
formance found in this amplifier.

The MC-30 maybe 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-8. C-4, C-104,
or ClOS. Output impedances of 4, 8 and 16 ohms are provided for direct connection to loud-

speakers. Additional outputs for 166 ohms (70.7 volts) and 600 ohms are provided for use with
multiple speaker systems, lines, etc.

INSTALLATION

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 preAamplifier is used with the
MCA30, 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 re-

quired plate and filament power to the pre-amplifier equipment as well as providing the neces-
sary audio connection.

For pre~amplifierinstallation and operation refer to the pre-amplifier's instruction manual.

2, When a signal source of 0. 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
pin jack receptacle or connect to the "0.5 volt" and "GND" screw terminals. Use the
control to obtain the desired operating level.

input"
"gain"