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Caution: The Loudspeaker Negative Connections are above chassis ground. Do not combine any connections together, ground them or connect with another MC452.
Connect the MC452 power
cord to a live AC outlet. Refer
to the rear panel to determine
the correct voltage
POWER CONTROL IN
receives turn On/Off
signals from a McIntosh
component.
POWER CONTROL OUT
1 and 2 send turn On/Off
signals to the next McIn-
tosh Component
Unbalanced INput (RIGHT Channel) for an
audio cable from a Preamplifier or A/V Con-
trol Center audio output.
Unbalanced OUTput (RIGHT Channel) for an
audio cable to the next Power Amplifier Input
INPUT MODE switch
selects between Balanced
or Unbalanced Inputs
Balanced INputs (LEFT
and RIGHT Channels) for
audio cables from a Pre-
amplifier or A/V Control
Center audio output
Balanced OUTputs (LEFT and
RIGHT Channels) for an audio
cable to the next Power Ampli-
fier Input
RIGHT OUTPUTS
Connection for a 2
ohm Loudspeaker
Rear Panel Connections and Switch
Fuse holder, refer to information
on the rear panel of your MC452
to determine the correct fuse
size and rating
RIGHT OUTPUTS
Connection for a 4
ohm Loudspeaker
RIGHT OUTPUTS
Connection for an 8
ohm Loudspeaker
LEFT OUTPUTS
Connection for an 8
ohm Loudspeaker
LEFT OUTPUTS
Connection for a 4
ohm Loudspeaker
LEFT OUTPUTS
Connections for a 2
ohm Loudspeaker
Unbalanced INput (LEFT Channel) for an au-
dio cable from a Preamplifier or A/V Control
Center audio output.
Unbalanced OUTput (LEFT Channel) for an
audio cable to the next Power Amplifier Input
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