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Thank You
Your decision to own this McIntosh MC1.2KW 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.
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
additional help concerning a suspected problem, you can
receive technical assistance for all McIntosh products at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-1545
Fax: 607-724-0549
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 Department. For
assistance on factory repair return procedure, contact the
McIntosh Service Department at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3515
Fax: 607-723-1917
Copyright 2007 © by McIntosh Laboratory, Inc.
Table of Contents
General Information
Safety Instructions ............................................................. 2
Thank You and Please Take a Moment ..............................
3
Technical Assistance and Customer Service ..................... 3
Table of Contents ............................................................... 3
General Information .......................................................... 3
Connector Information ...................................................... 4
Introduction ........................................................................
4
Performance Features ........................................................ 4
Dimensions ........................................................................ 5
Installation ......................................................................... 6
Rear Panel Connections and Switch .................................. 7
How to Connect .............................................................. 8-9
How to Connect for Bi-Amp ........................................10-11
Front Panel Displays and Controls ....................................12
How to Operate .................................................................13
Technical Description ..................................................14-17
Specifications ....................................................................18
Packing Instruction ...........................................................19
Caution: The MC1.2KW Amplifier weight is 147 pounds (66.7
kilograms). It requires two or more persons to safely
handle when moving the amplifier.
1. The following Connecting Cable is available from the McIn-
tosh Parts Department:
Power Control Cable Part No. 170-202
Six foot, 2 conductor shielded, with two 1/8 inch stereo
mini phone plugs.
2. For additional connection information, refer to the owner’s
manual(s) for any component(s) connected to the MC1.2KW.
3. The MC1.2KW mutes the speaker output for approximately
two seconds when first turned on.
4. It is very important that loudspeaker cables of adequate size
be used, so that there will be no power loss. The size is speci-
fied in Gauge Numbers or AWG, (American Wire Gauge). The
smaller the Gauge number, the larger the wire size:
If your loudspeaker cables are 50 feet (38.1m) or less, use
at least 14 Gauge.
If your loudspeaker cables are 100 feet (76.2m) or less,
use at least 12 Gauge.
5. In the event the MC1.2KW over heats, due to improper
ventilation and/or high ambient temperature, the protection
circuits will activate. The Front Panel Power Guard LED will
continuously indicate ON and the audio will be muted. When
the MC1.2KW has returned to a safe operating temperature,
normal operation will resume.
6. The MC1.2KW incorporates the very latest in Fully Double
Balanced Circuitry. As a result, the Loudspeaker Negative
Connections are above chassis ground. Do not combine any
connections together, ground them or connect with another
MC1.2KW.