McIntosh MCC406M, Owner'S Manual

16

How to Operate in Six or Five Channel Mode

How to Operate in Six Channel Mode

How to Operate in Five Channel Mode

Figure 8

In the 6 Channel Operating Mode, channels 1 thru 4 oper-
ate as independent 50 watt amplifiers; channels 5 and 6
each provide 100 watts of power output. A typical six chan-
nel application is to use an Electronic Crossover Network
ahead of the MCC406M Power Amplifier and each ampli-
fier channel powers Loudspeaker Drivers directly. A sec-
ond power amplifier is used to drive the Subwoofer. Refer
to figures 8 and 9, along with pages 8 and 9 of this
Owner’s Manual.

Input Source

Set the Channel 3-4 INPUT SOURCE Switch to 3, 4 and
the Channel 5-6 INPUT SOURCE Switch to the 5-6 posi-
tion for 6 Channel Mode.

Sensitivity Controls

The Sensitivity Controls allow setting of the input level of
all six amplifier channels to provide an ideal match for the
signal source being used.

Output Mode

Set all three OUTPUT MODE Switches to the STEREO
position to configure the amplifier for six channel opera-
tion.

High Pass Filter

Set each of the High Pass Filter Frequency Controls to 50
and the MULTIPLIER Switches to X.1. This will pass the
full audible spectrum, yet filter out power-robbing sub-
sonics below 5 Hz.

Low Pass Filter

Set each of the Low Pass Filter Switches to the OUT posi-
tion.

In the 5 Channel Operating Mode, channels 1 thru 4 oper-
ate as independent 50 watt amplifiers for the front and rear
Loudspeakers; channels 5 and 6 are Bridged for 400 watts
of power output. Refer to figures 8 and 9, along with page
10 of this Owner’s Manual.

Input Source

Set the Channel 3-4 INPUT SOURCE Switch to 3, 4 and
the Channel 5-6 INPUT SOURCE Switch to the 1-4 (SUB)
position for 5 Channel Mode.

Sensitivity Controls

The Sensitivity Controls allow setting of the input level of
all five amplifier channels to provide an ideal match for the
signal source being used.

Note: Set CH6 SENSITIVITY Control to the maximum

counterclockwise position.

Output Mode

Set CHANNELS 1-2 and 3-4 OUTPUT MODE Switches
to the STEREO position. Set the CHANNELS 5-6 OUT-
PUT MODE Switch to the BRIDGED position. This will
configure the amplifier for five channel operation.

High Pass Filter

Set the Channels 1-2 and 3-4 High Pass Filters’ FRE-
QUENCY Control to 100 and the MULTIPLIER Switch to
X1. Set the channel 5-6 High Pass Filter Frequency Control
to 50 and the MULTIPLIER Switch to X.1. This will send
frequencies above 100Hz to the upper range speakers for
channels 1 thru 4 and roll-off frequencies below 5Hz for
channels 5-6.

Low Pass Filter

Set the Channel 3-4 low pass filter to OUT. Set the Chan-
nel 5-6 Low Pass Filter FREQUENCY Control to 100 and
the MULTIPLIER Switch to X1. This will roll-off frequen-
cies above 100Hz for channels 5-6.