13
Power On
To have the MC1.25KW automatically turn On or Off
when a Preamplifier or 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 con-
trol connection between the
MC1.25KW and the McIntosh Control Center, in
order for the remote power turn-on to function.
Meter Selection
Rotate the meter mode switch to select the meter
operation 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 Control Input of the
MC1.25KW is connected to a McIn-
tosh A/V Processor or Preamplifier
with Remote Meter Illumination
Control, the Meter Illumination will
automatically be remotely con-
trolled (On/Off) with the METER
Switch set to the WATTS or HOLD
position.
Watts- The meters respond to all the musi-
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.
Hold - The meter pointer is locked to the high-
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 MC1.25KW Power Output
Meter indicates the actual wattage
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 MC1.25KW, allows you to
select either the BALanced or UNBAL-
anced Input. Refer to figure 11.
Auto Off Switch
The MC1.25KW incorporates Power Save Circuitry
to automatically place the MC1.25KW into the power
saving Standby Mode approximately 30 minutes after
there has been an absence of an audio input signal.
When there is a Power Control Connection be-
tween the MC1.25KW and a Preamplifier with Power
Save Circuitry, the AUTO OFF Switch is
bypassed (located on the Rear Panel Of the
MC1.25KW). Refer to figure 12.
In the event there is no Power Control
Connection and the Power Save Circuitry is
activating inappropriately relative to your
specific use of the MC1.25KW, place the AUTO OFF
Switch in the DISable position.
Note: If the Power Save Circuitry has switched Power
to the MC1.25KW OFF, place the POWER in
the OFF Position and then in the ON position to
reset the circuitry.
How to Operate
How to Operate
Figure 12
Figure 11
Figure 9
Figure 8
Figure 10
