McIntosh MCC406M, Owner'S Manual

15

The McIntosh MCC406M is a highly versatile amplifier
that can be configured in many ways. This manual gives
examples of some of the most common configurations. The
best way to set the filter controls is through the use of a
real-time spectrum analyzer and the expertise of a profes-
sional installer. This manual will guide you through the ba-
sic operation, however we suggest you refer to your Dealer
for further information on the use of this unit. To access the
Amplifier Controls and Switches refer to “Removing the
Glass Panel” located on page 6 of this Owner’s Manual.

Low Pass Filter

The LOW PASS Filter Controls select the frequencies at
which the filters operate. Any given frequency number is
selected through the combined settings of the FRE-
QUENCY and MULTIPLIER controls.
The low-pass filters multiplier switches
have settings of X1 (frequency times
one), X10 (frequency times ten). Refer
to figure 4.

Example: A frequency 1,500 Hz would be

attained by setting the
FREQUENCY Control to 150 and setting the
MULTIPLIER Switch to X10 (150 times 10 equals
1,500).

High Pass Filter

The HIGH PASS Filter Controls select the center frequen-
cies at which the filters operate. Any given frequency num-
ber is selected through the combined settings of the FRE-
QUENCY and MULTIPLIER controls.
The high-pass filter multiplier switches
have settings of X.1 (frequency times
one-tenth), X1 (frequency times one),
X10 (frequency times ten). Refer to fig-
ure 5.

Example: A frequency of 15 Hz would be

selected by setting the FREQUENCY Control to 150
and the MULTIPLIER Switch to X

.

1 (150 times 

.

1

equals 15).

Input Sensitivity Controls

The SENSITIVITY controls allow independent setting of
the input sensitivity of all amplifier channels, to provide an
ideal match for the signal source being used. The most de-
sirable setting allows the control center to have a useful
volume range as wide as possible from loud to soft. A good
place to start is to set the amplifier’s SENSITIVITY Con-
trol to the output voltage called out in your control center

owner’s manual. The Level controls can
be set for any sensitivity from .5 volts to
8 volts. Refer to figure 6.

Note: When used in conjunction with a

McIntosh control center, you may
find setting the Sensitivity controls
to the center detent (1.5V) works best.

Power Output Meters

There are two illuminated watt meters on the glass panel,
the left meter displaying combined power output for chan-
nels 1, 2, 3 and 4 and the right meter displaying combined
power output for channels 5 and 6. The upper scale shows
power in watts during normal operation, the lower scale
displays power in watts for bridged operation. All displays
show power into a 4 ohm load. The meters respond to all
the musical 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. Re-
fer to figure 7.

Power

The MCC406M will turn on or off when the Control Cen-
ter turns On or Off.

Note: There must be an Amp ON connection between the

MCC406M and the signal source unit in order for the
amplifier power turn On and Off to function.

How to Operate the MCC406M

Introduction

Figure 4

Figure 5

Figure 6

Figure 7