Owner’s
Manual
MCC404/MCC404M Power Amplifier
MCC404
MCC404M
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549
McIntosh MCC404 Amplifier
Thank You
Your decision to own this McIntosh MCC404/MCC404M
Four Channel Power Amplifier ranks you at the very top
among discriminating music listeners. You now have “The
Best.” The McIntosh dedication to “Quality,” is assurance
that you will receive many years of musical enjoyment
from this unit.
The McIntosh MCC404 Power Amplifier is identical to the
McIntosh MCC404M illustrated throughout this manual in
every aspect except the MCC404 is without the Power Out-
put Meters.
Please take a short time to read the information in this
manual. We want you to be as familiar as possible with all
the features and functions of your new McIntosh.
Please Take A Moment
The serial number, purchase date and McIntosh dealer
name are important to you for possible insurance claim or
future service. The spaces below have been provided for
you to record that information:
Serial Number:
Purchase Date:
Dealer Name:
Technical Assistance
If at any time you have questions about your McIntosh
product, contact your McIntosh dealer who is familiar with
your McIntosh equipment and any other brands that may
be part of your system. If you or your dealer wish addi-
tional help concerning a suspected problem, you can re-
ceive technical assistance for all McIntosh products at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-1545
Fax: 607-723-3636
Customer Service
If it is determined that your McIntosh product is in need of
repair, you can return it to your dealer. You can also return
it to the McIntosh Laboratory Service Repair department.
For assistance on factory repair return procedure, contact
the McIntosh Repair Department at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3515
Fax: 607-723-1917
Copyright 2000 ã by McIntosh Laboratory, Inc.
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Table of Contents
Introduction
Safety Instructions ............................................................. 2
Thank You.......................................................................... 3
Please Take a Moment ....................................................... 3
Customer Service............................................................... 3
Table of Contents............................................................... 4
Introduction ....................................................................... 4
Performance Features ........................................................ 4
Dimensions ....................................................................... 5
Installation ........................................................................ 6
Side Panel Cooling and Connections ................................ 7
How to Connect for Four Channels ................................... 8
How to Connect for Three Channels ................................. 9
How to Connect for Two Channels ................................. 10
How to Connect with Subwoofer Channels .................... 11
Top Panel Controls, Displays and Switches .................... 12
Now you can take advantage of traditional McIntosh stan-
dards of excellence in the MCC404/MCC404M power am-
plifier. Four 100 watt high current output channels will
drive any high quality loudspeaker system to its ultimate
performance. The MCC404/MCC404M reproduction is
sonically transparent and absolutely accurate. The McIn-
tosh Sound is “The Sound of the Music Itself.”
Performance Features
· Power Output
The MCC404/MCC404M consists of four separate power
amplifier channels, each capable of 100 watts into 4ohm
speakers with less than 0.005% distortion.
How to Operate the MC404/MC404M............................ 13 · Four Bridgeable Channels
How to Operate in Four or Three Channel Mode............ 14
How to Operate in Two Channel or Subwoofer Mode .... 15
How to Replace the Fuses ............................................... 16
Block Diagram................................................................. 17
Specifications .................................................................. 18
Packing Instruction .......................................................... 19
The MCC404/MCC404M includes four 100 watt amplifier
channels. Each pair of channels can be set in bridged con-
figuration for 400 watts output into 4 ohm loudspeakers
with less than 0.007% distortion.
· High Current Output
A peak output current of 20 amperes ensures that the
MCC404/MCC404M will successfully drive high quality
loudspeakers, such as McIntosh, for a truly exciting sound
experience.
General Notes
1. An optional McIntosh External Subwoofer Rotary Control,
Model Number R1163, is available from your McIntosh
Dealer.
2. Do not connect the Amplifier Speaker Negative Terminal
Connection directly to the Vehicle Chassis. Failure to observe
this could result in damage to your Amplifier.
3. For additional connection information, refer to the owner’s
manual(s) for any component(s) connected to the MCC404/
MCC404M Amplifier.
4. There is a built-in turn on delay which will mute the speaker
outputs for approximately two seconds when the amplifier is
turned on.
· Equalizer and Variable Crossover Filters
The one band equalizer has a center frequency that is vari-
able from 40 Hz to 2,000 Hz that can be either cut or
boosted ±12db. 12dB per octave high pass filters with vari-
able corner frequencies from 5Hz to 5,000Hz and 12dB per
octave low pass filters with variable corner frequencies
from 50Hz to 5,000Hz.
5. It is very important that loudspeaker cables of adequate size
be used in your music system, to ensure that there will be no
power loss or heating. If your loudspeaker cables are 25 feet
(7.62m) or less, use at least 16 Gauge wire size or larger.
6. It is advisable to place an in-line fuse as close as possible to
the battery.
· Power Guard and Sentry Monitor
All channels include the patented McIntosh Power Guard
circuit that prevents the amplifier from being overdriven
into clipping with its harsh distorted sound that can also
damage your valuable loudspeakers. McIntosh Sentry
Monitor power output stage protection circuits are present
on all channels to ensure the MCC404/MCC404M will
have a long and trouble free operating life.
7. The MCC404/MCC404M Line Level OUTPUTs are wired as a
“Y” connection with the INPUTs to pass the input signals on
to additional amplifiers (keep cable lengths as short as
possible). The McIntosh MX406 Control Center is capable of
driving several additional
(-) NEGATIVE SPEAKER OUTPUT
power amplifiers with no
· Speaker Protection
degradation of the signal.
8. The MCC404M/MCC404 can
accept speaker level inputs at
its Input Jacks. Refer to the
If for any reason, a DC (Direct Current) voltage appears at
the speaker output terminals, a built-in circuit turns off the
amplifier power supplies to prevent damage to your valu-
able loudspeakers.
(+) POSITIVE SPEAKER OUTPUT
diagram for connection.
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