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How to Operate and Read the Power Output Meters
How to Operate
Power On
With the POWER Switch set to the REMOTE Position, the
MC207 will turn On or Off when
an A/V Control Center turns On or
Off. For manual operation, rotate
the POWER Switch to the ON or
OFF Position as desired. Refer to
figure 8.
Note: There must be a power
control connection between
the MC207 and the McIntosh
A/V Control Center in order
for the remote power turn-on
to function.
Meter Illumination
Rotate the METER LIGHTS Switch to select Meter Illumi-
nation On or Off. Refer to figure 9.
Note: When the MC207 is
connected to a McIntosh
MX132, MX134 or MX135
A/V Control Center with a
DB25 conductor cable, the
meter illumination will
automatically switch On
during the Loudspeaker Level
Setup Adjustment.
Impedance Switch
The MC207’s Dynamic Power Manager circuitry allows
for the connection of either 4 ohm or 8
ohm Loudspeakers to its output terminals,
while at the same time delivering the same
power output. Refer to figure 10. Place the
IMPEDANCE Switch to the position (4
ohm or 8 ohm) that matches the im-
pedance of the connected Loudspeak-
ers. In the event that some of the
Loudspeakers in the system are of
different impedance, use the imped-
ance of the Left and Right Front
Loudspeakers to set the IMPED-
ANCE Switch position. Refer to figure 11.
How to Read the Power Output Meters
Figure 8
Figure 9
Figure 12
Figure 11
The MC207 Power Output Meters are calibrated to allow
for the direct reading of either the Power Output in Watts
or Decibels going to the Front Left, Center and Right
Loudspeakers. The meters respond to all the musical infor-
mation being produced by the amplifier. They indicate to
an accuracy of at least 95% of the power output with only
a single cycle of a 2000Hz tone burst. Refer to figure 12.
Figure 10