McIntosh MCC204 - Manual (Page 15)

15
How to Operate in Two Channel or Subwoofer Mode
How to Operate in Two Channel Mode How to Operate in Subwoofer Mode
In the Two Channel Mode, Channels 1 and 2, and Channels
3 and 4 operate in bridged configuration as a pair of full
frequency range 200 watt amplifiers. A typical application
is use of a more powerful amplifier for stereo reproduction.
Refer to figures 7 and 8.
Power
The MCC204 will turn On or Off when the Control Center
turns On or Off.
Note: There must be an Amp ON connection between the
MCC204 and the signal source unit in order for the
amplifier power turn On and Off to function.
Input Source
Set the Channel 3-4 SOURCE Switch to 3, 4.
Sensitivity Controls
The Sensitivity Controls 1 and 3 allow the setting of input
level of both bridged pairs of amplifier channels to provide
an ideal match for the signal source being used.
Mode
Set both the Channel 1-2 MODE Switch and the Channel
3-4 MODE Switch to the BRidged position to configure
the amplifier for two channel operation.
Crossover
Set the CROSSOVER Switches to the OUT position since
both bridged channels are operating at full frequency
range.
In the Sub Woofer Mode, Channels 1 and 2 operate as in-
dependent 50 watt amplifiers, driving two midrange and
high frequency or full range speakers. Channels 3 and 4
operate in Bridged Mode as a single 200-watt amplifier,
driving a low frequency speaker. A typical Subwoofer Ap-
plication is to drive two upper-range loudspeakers and one
woofer or subwoofer. Refer to figures 7 and 8.
.
Power
The MCC204 will turn On or Off when the Control Center
turns On or Off.
Note: There must be an Amp ON connection between the
MCC204 and the signal source unit in order for the
amplifier power turn On and Off to function.
Input Source
Set the Channel 3-4 SOURCE Switch to the 1-4 (SUB) po-
sition to send the summed signals from Input 1 and 2 to the
Bridged Channels 3 and 4 for low-pass filtering.
Sensitivity Controls
The Sensitivity Controls allow setting the input level of
Amplifier Channels 1, 2 and 3 to provide an ideal match
for the signal source being used. Sensitivity Control 3 ad-
justs the subwoofer level balance and Sensitivity Control 4
has no effect.
Output Mode
Set the Channels 1-2 MODE Switch to the STereo position
and the Channels 3-4 MODE Switch to the BRidged posi-
tion to operate in the Subwoofer Mode.
Crossover
Set the Channel 1-2 CROSSOVER Switch to the HP Posi-
tion and the Channel 3-4 CROSSOVER Switch to the LP
Position. Adjust the CROSSOVER FREQUENCY Control
for both Channels 1-2 and 3-4 to the same frequency set-
ting. The selection of the Crossover Frequency should be
determined by the recommendations of the Loudspeaker
Manufacturer for the best performance.