2
Table of Contents
Thank You.......................................................................... 2
Please Take a Moment ....................................................... 2
Customer Service ............................................................... 2
Table of Contents ............................................................... 2
Safety Instructions ............................................................. 3
Introduction ........................................................................ 4
Performance Features ........................................................ 4
Installation ......................................................................... 5
Rear Panel Connections ..................................................... 6
How to Connect ................................................................. 7
How to Connect for Video Switching................................ 8
Front Panel Controls, Displays, Push-Buttons,
and Switches ...................................................................... 9
How to Operate................................................................ 10
HR-033 Push-Buttons ...................................................... 12
How to Operate by Remote Control ................................ 13
Specifications .................................................................. 14
Packing Instruction .......................................................... 15
NOTES:
1. Connecting Cables are available from the McIntosh Parts
Department:
Data and Power Control Cable Part No. 170-202
Six foot, shielded 2 conductor, with 1/8 inch stereo mini
phone plugs on each end.
2. For additional connection information, refer to the owners
manual(s) for any component(s) connected to the MA6450
Amplifier.
3. There is a built-in turn on delay which will mute the speaker
outputs for approximately two seconds when the amplifier is
turned on.
4. If the rear panel processor switch is set to the in position, and
a signal processor is not connected, no sound will be heard
through the system. When a signal processor is connected to
the MA6450 processor jacks, and the processor switch is set
to the in position, the processor must be on and operating, or
in bypass mode, for a sound to be heard through the system.
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. Cable size is specified in Gauge
numbers or AWG, (American Wire Gauge). The smaller the
Gauge number, the larger the wire size:
If your loudspeaker cables are 25 feet (7.62m) or less,
use at least 18 Gauge (AWG) wire size or larger.
If your loudspeaker cables are 50 feet (38.1m) or less,
use at least 16 Gauge (AWG) wire size or larger.
If your loudspeaker cables are 100 feet (76.2m) or less,
use at least 14 Gauge (AWG) wire size or larger.
Copyright 1997
by McIntosh Laboratory, Inc.
Thank You, Please Take A Moment,
Customer Service and Table of Contents
Customer Service
If at any time you have questions about your McIntosh
MA6450 Intergrated Amplifier, contact your McIntosh
dealer. Your dealer is familiar with your McIntosh equip-
ment as well as other brands that may be included in your
system and is best qualified to help you.
If it is determined that your MA6450 is in need of repair,
you can return it to your dealer or you can return it to
McIntosh Laboratory. Contact the McIntosh Repair Depart-
ment for assistance at,
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3512
FAX: 607-724-0549
Serial Number:
Purchase Date:
Dealer Name:
Thank You
For your decision to own this McIntosh MA6450 Inte-
grated Amplifier ranks you at the very top among discrimi-
nating 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 MA6450.
This will ensure that you receive all the performance ben-
efits this equipment can offer you, and that it will become a
highly valued part of your home entertainment system.
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 serial number is located on the rear panel of the
equipment. The spaces below have been provided for you to
record that information:
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