McIntosh MC300 Owner's Manual

FRONT
PANEL
a sequence of peaks. The meter is electronically held to this power level until another higher
power peak passes through the amplifier. The meter pointer will then rise to the newer higher
indication. If no further power peaks are reached, the meter pointer will very slowly return
to its rest position or lower power level. The decay rate is approximately 6dB per minute.
POWER: OFF/REMOTE-ON
ON position turns the MC300 AC power on. OFF/REMOTE allows the MC300 AC power
to be turned on by a DC Power Control signal from a Mclntosh Control Center or similar com-
patible accessory, sent to the POWER CONTROL IN CONNECTOR.
The ON position turns on the MC300 as long as its power cord is connected to a live AC
outlet.
POWER GUARD
The patented Mclntosh POWER GUARD circuit prevents the MC300 from ever being driven
into clipping. This protects you from distortion and possible speaker damage. The POWER
GUARD LED near each meter will light whenever POWER GUARD is activated on either chan-
nel, and indicates that you are being protected.
REAR
PANEL
POWER CONTROL: IN/OUT
The MC300 can be turned ON and OFF remotely by means of a DC POWER CONTROL
signal from a compatible Mclntosh Control Center or Power Amplifier. Connect a cable from
the POWER CONTROL OUT on the accessory Mclntosh unit, to the POWER CONTROL IN
on the MC300. When the accessory unit is turned on, the Power Control signal will then turn
on the MC300. The POWER CONTROL OUT on the MC300 will feed the same turn on control
signal out, time delayed, to an additional Mclntosh Power Amplifier or compatible accessory.
A POWER CONTROL cable uses single conductor shielded wire with 1/8" mini phone plugs
on each end. Connections are to the sleeve (-) and tip (+) of each plug.
MODE SWITCH
Provides Stereo, MONO (Bridged) or MONO (Parallel) OPERATION.
LEFT LEVEL
Use the LEFT LEVEL control to adjust the output in the left channel to the desired listening
level.
RIGHT LEVEL (MONO)
Use the RIGHT LEVEL control to adjust the output in the right channel to the desired listening
level.
When the amplifier is connected for either bridged or parallel monophonic operation, the
RIGHT LEVEL control is used to control the combined monophonic level of both channels.
FOR THE BEST SIGNAL TO NOISE RATIO WHEN USING MclNTOSH PREAMPLIFIERS
OR CONTROL CENTERS, TURN THE INPUT LEVEL CONTROL ON THE REAR PANEL
OF THE AMPLIFIER TO THE 2.5V POSITION.
If your needs require more or less input sensitivity from the amplifier, turn the LEVEL con-
trols up or down as needed.
BALANCED AND UNBALANCED INPUTS; SPEAKER OUTPUTS; FUSE
Refer to other sections of this manual for the proper connections and operation of the
inputs and outputs.
14

McIntosh MC300 Specifications

General

Brand	McIntosh
Model	MC300
Category	Amplifier
Language	English