McIntosh MC-122 User Manual
MC122 Power Amplifier
OWNERS
MANUAL
MC122
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549
Thank You, Please Take A Moment,
Customer Service and Table of Contents
Thank You
For your decision to own this McIntosh MC122 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 MC122.
This will ensure that you receive all the performance benefits 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:
Serial Number:
Purchase Date:
Dealer Name:
Customer Service
If at any time you have questions about your McIntosh
MC122 Power Amplifier, contact your McIntosh dealer.
Your dealer is familiar with your McIntosh equipment 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 MC122 is in need of repair,
you can return it to your dealer or you can return it to
McIntosh Laboratory. Contact the McIntosh Repair Department for assistance at,
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 Controls and Connections ............................... 6
How to Connect ................................................................. 7
Front Panel Displays and Switch ....................................... 8
How to Operate.................................................................. 9
Specifications .................................................................. 10
Packing Instruction .......................................................... 11
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 MC122
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. 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.
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3512
FAX: 607-724-0549
Copyright 1998 by McIntosh Laboratory, Inc.
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IMPORTANT SAFETY
INSTRUCTIONS!
PLEASE READ THEM BEFORE
OPERATING THIS EQUIPMENT.
WARNING SHOCK HAZARD DO NOT OPEN.
The lightning flash with arrowhead, within an equilateral
triangle, is intended to alert the user to the presence of
uninsulated dangerous voltage within the products
enclosure that may be of sufficient magnitude to consti-
tute a risk of electric shock to persons
.
Safety Instructions
Attention: pour pevenir les chocs elecriques pas
utiliser cette fiche polarisee avec un prolongateur,
une prise de courant ou un autre sortie de courant,
sauf si les lames peuvent etre inserees afond ans en
laisser aucune partie a decouvert.
7. For added protection for this product during a lightning
storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent
damage to the product due to lightning or power line
surges.
8. Do not use attachments not recommended in this
owners manual as they may cause hazards.
AVIS RISQUE DE CHOC NE PAS OUVRIR.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
NO USER-SERVICEABLE
PARTS INSIDE. REFER
SERVICING TO
QUALIFIED PERSONNEL
To prevent the risk of electric shock, do not remove
cover (or back). No user serviceable parts inside. Refer
servicing to qualified personnel.
General:
1. Read all the safety and operating instructions, contained in this owners manual, before operating this
equipment.
2. Retain this owners manual for future reference about
safety and operating instructions.
3. Adhere to all warnings and operating instructions.
4. Follow all operating and use instructions.
5. Warning: To reduce risk of fire or electrical shock,
do not expose this equipment to rain or moisture.
This unit is capable of producing high sound pressure levels. Continued exposure to high sound pressure levels can cause permanent hearing impairment or loss. User caution is advised and ear protection is recommended when playing at high volumes.
6. Caution: to prevent electrical shock do not use this
(polarized) plug with an extension cord, receptacle
or other outlet unless the blades can be fully inserted to prevent blade exposure.
Installation:
9. Locate the equipment for proper ventilation. For example, the equipment should not be placed on a bed,
sofa, rug, or similar surface that may block ventilation
openings; or, placed in a built-in installation, such as a
bookcase or cabinet, that may impede the flow of air
through the ventilation openings.
10. Locate the equipment away from heat sources such as
radiators, heat registers, stoves, or other appliance (including amplifiers) that produce heat.
11. Mount the equipment in a wall or cabinet only as described in this owners manual
12. Do not use this equipment near water; for example,
near a bathtub, washbowl, kitchen sink, laundry tub, in
a wet basement or near a swimming pool, etc.
13. Do not place this product on an unstable cart, stand,
tripod, bracket, or table. The equipment may fall, causing serious injury to a person, and serious damage to
the product.
Connection:
14. Connect this equipment only to the type of AC power
source as marked on the unit.
15. Route AC power cords so that they are not likely to be
walked on or pinched by items placed upon or against
them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from
the instrument.
16. Do not defeat the inherent design features of the polarized plug. Non-polarized line cord adapters will defeat
the safety provided by the polarized AC plug. If the
plug should fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.
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Safety Instructions cont,
Introduction and Performance Features
17. Do not overload wall outlets, extension cords or integral convenience receptacles as this can result in a risk
of fire or electric shock.
Care of Equipment:
18. Clean the instrument by dusting with a dry cloth. Unplug this equipment from the wall outlet and clean the
panel with a cloth moistened with a window cleaner. Do
not use liquid cleaners or aerosol cleaners.
19. Do not permit objects of any kind to be pushed and/or
fall into the equipment through enclosure openings.
Never spill liquids into the equipment through enclosure openings.
20. Unplug the power cord from the AC power outlet when
left unused for a long period of time.
Repair of Equipment:
21. Unplug this equipment from the wall outlet and refer
servicing to a qualified service personnel under the following conditions:
A. The AC power cord or the plug has been damaged.
B. Objects have fallen, or liquid has been spilled into
the equipment.
C. The equipment has been exposed to rain or water.
D. The equipment does not operate normally by follow-
ing the operating instructions contained within this
owners manual. Adjust only those controls that are
covered by the operating instructions, as an im-
proper adjustment of other controls may result in
damage and will often require extensive work by a
qualified technician to restore the product to its nor-
mal operation.
E. The equipment has been dropped or damaged in any
way.
F. The equipment exhibits a distinct change in perfor-
mance - this indicates a need for service.
22. Do not attempt to service beyond that described in the
operating instructions. All other service should be referred to qualified service personnel.
23. When replacement parts are required, be sure the service technician has used replacement parts specified by
McIntosh or have the same characteristics as the original part. Unauthorized substitutions may result in fire,
electric shock, or other hazards.
24. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks
to determine that the product is in proper operating
condition.
Introduction
Now you can take advantage of traditional McIntosh standards of excellence in the MC122 power amplifier. Two
120 watt high current output channels will drive any high
quality loudspeaker system to its ultimate performance.
The MC122 reproduction is sonically transparent and absolutely accurate. The McIntosh Sound is The Sound of the
Music Itself.
Performance Features
· Power Output
The MC122 consists of two separate power amplifier channels, each capable of 120 watts into 4ohm speakers with
less than 0.005% distortion.
· High Current Output
A peak output current of 18 amperes per channel ensures
that the MC122 will successfully drive high quality loudspeakers such as McIntosh for a truly exciting sound experience.
· Power Guard
Both 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.
· Sentry Monitor
McIntosh Sentry Monitor power output stage protection
circuits are present on both channels to ensure the MC122
will have a long and trouble free operating life.
· Thermal Protection
Built-in thermal protection circuits guard against overheating which could shorten the normal long life expectancy of
your McIntosh power amplifier.
· Convenient Hookup
Rear panel gold plated input jacks and heavy duty speaker
terminals make hookup easy.
· Power Control
Rear panel power control in and out jacks allow the amplifier to be turned on remotely from a McIntosh preamplifier
or control center.
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