How To Operate - McIntosh MC452 Owner's Manual

How to Operate

Power On
To have the MC452 automatically turn On or Off
when a control center turns on or off, rotate the power
switch to the Remote position. 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 MC452 and the Audio
Preamplifier or A/V Con-
trol Center, in order for the
remote power turn-on to
function.
Meter Selection
Rotate the meter mode switch to select the meter op-
eration mode you desire. Refer to figures 9 and 10.
Lights Off - Meter lights
are turned off
and the meter
will continue
to indicate
the power
output.
Note: When
Power
Con-
trol Input of the MC452 is con-
nected to a Audio Preamplifier or
A/V Control Center with Remote
Meter Illumination Control, the
Meter Illumination will automati-
cally be remotely controlled (On/
Off) with the METER Switch set to
the WATTS or HOLD position.
Watts- The meters respond to all the musi-
Figure 8
Hold - The meter pointer is locked to the high-
Figure 9
Figure 10
cal information 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.
est power peak in a sequence of peaks.
It is electronically held to this power
level until a higher power peak passes
through the amplifier. The meter point-
er 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.
Note: The MC452 Power Output Meter
indicates the actual power delivered
to the loudspeakers by responding
to the combination of current and
voltage output.
Input Mode Switch
The Input Mode Switch, which is located on the Rear
Panel of the MC452, allows
selection of either the Bal-
anced or Unbalanced Input.
Refer to figure 11.
How to Operate
Figure 11
13