McIntosh MC207 - Manual (Page 15)

15
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 IM-
PEDANCE Switch to the position (4 ohm
or 8 ohm) that matches the impedance
of the connected Loudspeakers. In the
event that some of the Loudspeakers
in the system are of different imped-
ance, use the impedance of the Left
and Right Front Loudspeakers to set
the IMPEDANCE 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 Loud-
speakers. The meters respond to all the musical information
being produced by the amplifier. They indicate to an accu-
racy of at least 95% of the power output with only a single
cycle of a 2000Hz tone burst. Refer to figure 12.
Figure 10