McIntosh MC-8207 User Manual
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
MC8207
Seven Channel
Power Amplier
Owner’s Manual
The lightning ash with arrowhead, within an equilateral
triangle, is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s enclosure that may be of sufcient magnitude to constitute
a risk of electric shock to persons.
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.
WARNING - TO REDUCE RISK
OF FIRE OR ELECTRICAL
SHOCK, DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR
MOISTURE.
IMPORTANT SAFETY
INSTRUCTIONS!
PLEASE READ THEM BEFORE
OPERATING THIS EQUIPMENT.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install
in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as
radiators, heat registers, stoves, or other appa-
ratus (including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other.
A grounding type plug has two blades and a
NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL.
third grounding prong. The wide blade or the
third prong are provided for your safety. If
the provided plug does not t into your outlet,
consult an electrician for replacement of the
obsolete outlet.
10. Protect the power cord from being walked on
or pinched particularly at plugs, convenience
receptacles, and the point where they exit
from the apparatus.
11. Only use attachments/accessories specied by
the manufacturer.
12. Use only with the cart, stand, tripod, bracket,
or table specied by the manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/
apparatus combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning storms
or when unused for long periods of time.
14. Refer all servicing to qualied service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-
To prevent the risk of electric
shock, do not remove cover or
back. No user-serviceable parts
inside.
supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or
has been dropped.
15. Do not expose this equipment to dripping or
splashing and ensure that no objects lled
with liquids, such as vases, are placed on the
equipment.
16. To completely disconnect this equipment from
the a.c. mains, disconnect the power supply
cord plug from the a.c. receptacle.
17. The mains plug of the power supply cord shall
remain readily operable.
18. Do not expose batteries to excessive heat such
as sunshine, re or the like.
19. Connect mains power supply cord only to a
mains socket outlet with a protective earthing
connection.
2
Thank You
Your decision to own this McIntosh MC8207 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
Copyright 2011 © by McIntosh Laboratory, Inc.
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
Table of Contents
Safety Instructions ......................................................2
Thank You and Please Take a Moment .......................3
Technical Assistance and Customer Service ..............3
Table of Contents ........................................................3
General Information ............................................... 3-4
Connector and Cable Information ..............................4
Introduction .................................................................4
Performance Features .................................................4
Dimensions .................................................................5
Installation ..................................................................6
Connections:
Rear Panel Connections ..............................................7
How to Connect for a Seven Channel System ........ 8-9
Connection Diagram (Separate Sheet) ............Mc1A
How to Connect for a Five Channel and Zone B Sys-
tem (or Seven Channel System) ........................... 10 -11
Connection Diagram (Separate Sheet) ............Mc1B
Front Panel Displays and Controls ............................12
How to Operate ......................................................... 13
Technical Description .......................................... 14 -15
Photos ................................................................... 16-17
Specifications ............................................................ 18
Packing Instruction ................................................... 19
General Information
1. For additional connection information, refer to the
owner’s manual(s) for any component(s) connected
to the MC8207 Power Amplifier.
2. The Main AC Power going to the MC8207 and any
other McIntosh Component(s) should not be applied
until all the system components are connected
together. Failure to do so could result in malfunctioning of some or all of the system’s normal operations. When the MC8207 and other McIntosh Components are in their Standby Power Off Mode, some
of the circuitry inside each component is active and
communication is occurring between them.
3. In the event the MC8207 overheats, due to improper ventilation and/or high ambient temperature, the
protection circuits will activate. The Front Panel
Power Guard LEDs will continuously indicate ON
and the audio will be muted. When the MC8207
has returned to a safe operating temperature, normal operation will resume.
4. For the best performance and safety it is important
to always match the impedance of the Loudspeaker
to the Power Amplifier connections. Refer to “How
to Connect” pages 8 thru 11.
Note: The impedance of a Loudspeaker actually var-
ies as the Loudspeaker reproduces different
frequencies. As a result, the nominal impedance
rating of the Loudspeaker (usually measured at
a midrange frequency) might not always agree
with the impedance of the Loudspeaker at low
frequencies where the greatest amount of power
is required. Contact the Loudspeaker Manufacturer for additional information about the actual
impedance of the Loudspeaker before connecting
it to the McIntosh MC8207.
3
General Information, con,t and Cable Information, Introduction and Performance Features
Power
Control
Meter
Illumination
Control
Ground
PIN 2 PIN 1
PIN 3
General Information, con’t
5. When discarding the unit, comply with local rules
or regulations. Batteries should never be
thrown away or incinerated but disposed
of in accordance with the local regulations
concerning battery disposal.
6. For additional information on the MC8207
and other McIntosh Products please visit
the McIntosh Web Site at www.mcintoshlabs.com.
Connector and Cable Information
XLR Connectors
Below is the Pin configuration for the XLR Balanced
Input, Input/Output Connectors on the MC8207. Refer
to the diagram for connection:
PIN 1: Shield/Ground
PIN 2: + Input/Output
PIN 3: - Input/Output
Power Control Connector
The MC8207 Power Control Input receives an On/
Off signal from +5 to +12 volts. The Power Control
Output will in turn provide a +12 volt Output Signal
with a total current up to 50mA.
An additional connection is for
controlling the illumination of the
MC8207 Ilumeter Power Output
Indicators. The 1/8 inch stereo
mini phone plug connects to a
McIntosh Preamplifier or A/V Control Center Power
Control Output.
Introduction
Now you can take advantage of traditional McIntosh
standards of excellence in the MC8207 Power Amplifier. The Seven Channel Power Amplifier produces a
power output of 200 watts per channel and will drive
quality Loudspeakers to a high level of performance.
The MC8207 reproduction is sonically transparent
and absolutely accurate. The McIntosh Sound is “The
Sound of the Music Itself.”
Performance Features
• Power Output
The MC8207 consists of Seven Power Amplifier
Channels, each capable of 200 watts into 4 ohm or 8
ohm Loudspeakers with less than 0.005% distortion.
• Power Guard
The patented McIntosh Power Guard Circuit prevents
the amplifier from being over driven into clipping,
with its harsh distorted sound that can damage your
valuable Loudspeakers.
• Dynamic Power Manager
The MC8207’s Dynamic Power Manager (DPM) circuitry allows for the connection of either 4 ohm or 8
ohm Loudspeakers, while at the same time delivering
identical power output. A peak output current of 25
amperes per channel ensures that it will successfully
drive high quality Loudspeakers such as McIntosh, for
a truly exciting sound experience.
• Versatile Operation
The MC8207 can provide power amplification for
seven channels in a single Zone A/V System or five
channels for Zone A and two channels for Zone B in a
Dual Zone A/V System.
TM
• Balanced and Unbalanced Inputs
There are Balanced Connections for all seven Power
Amplifier Input Channels. For convenience when the
MC8207 is used in a Dual Zone System there are also
two unbalanced inputs.
• Sentry Monitor and Thermal Protection
McIntosh Sentry Monitor power output stage protection circuits ensure the MC8207 will have a long and
trouble free operating life. Built-in thermal protection
circuits guard against overheating.
• Ilumeter Power Output Indicators
The LED Ilumeter Power Output Indicators are peak
responding and indicate the power output of the amplifier in watts.
• Power Control
The McIntosh Power Control Circuit allows for remote
turn-on of the MC8207 Power Amplifier from a McIntosh A/V Control Center or Preamplifier for a single
or dual Zone System.
• Special Power Supply
A regulated Power Supply and a very large Toroidal
Wound Power Transformer, ensures stable noise free
operation even though the power line varies.
• Fiber Optic Solid State Front Panel Illumination
The even Illumination of the Front Panel is accomplished by the combination of custom designed Fiber
Optic Light Diffusers and extra long life Light Emit-
ting Diodes (LEDs). The glass Front Panel ensures
the pristine beauty of the MC8207 will be retained for
many years.
4
Dimensions
Front View of the MC8207
Rear View of the MC8207
Side View of the MC8207
17-1/2"
44.5cm
8-7/8"
22.5cm
9-7/16"
23.9cm
11-3/4"
29.9cm
16-13/16"
42.7cm
18-5/8"
47.3cm
3/16"
0.5cm
7/8"
2.2cm
8-1/8"
20.6cm
13"
33.0cm
16-1/2"
41.9cm
2-1/2"
6.4cm
The following dimensions can assist in determining
the best location for your MC8207.
Dimensions
5
Installation
MC8207 Front Panel
Custom Cabinet Cutout
Cutout
Opening
for
Ventilation
Cutout Opening for Ventilation
Support
Shelf
Cabinet
Front
Panel
Chassis
Spacers
MC8207 Side View
in Custom Cabinet
MC8207 Bottom View
in Custom Cabinet
12
-1/4
"
31.1cm
12-3/8"
31.4cm
14-1/4"
36.2cm
2-7/8"
7.3cm
6"
15.2cm
Opening
for Ventilation
15-3/4"
40.0cm
9
-7/8
"
25.1cm
10"
25.4cm
14-11/16"
37.3cm
17"
43.2cm
Cutout Opening for Custom Mounting
Opening for Ventilation
Cabinet Front Panel
Note: Center the cutout Horizontally
on the unit. For purposes of
clarity, the above illustration
is not drawn to scale.
The MC8207 can be placed upright on a table or
shelf, standing on its four feet. It also can be custom
installed in a piece of furniture or cabinet of your
choice. The four feet may be removed from the bottom
of the MC8207 when it is custom installed as outlined below. The four feet together with the mounting
screws should be retained for possible future use if the
MC8207 is removed from the custom installation and
used free standing. The required panel cutout, ventilation cutout and unit dimensions are shown.
Always provide adequate ventilation for your
MC8207. Cool operation ensures the longest possible
operating life for any electronic instrument. Do not
install the MC8207 directly above a heat generating
component such as a high powered amplifier. If all
the components are installed in a single cabinet, a
quiet running ventilation fan can be a definite asset in
maintaining all the system components at the coolest
possible operating temperature.
A custom cabinet installation should provide the
following minimum spacing dimensions for cool
operation.
Allow at least 6 inches (15.24cm) above the top, 2
inches (5.08cm) below the bottom, 3 inches (7.62cm)
behind the rear panel and 2 inches (5.08cm) on each
side of the Power Amplifier, so that airflow is not
obstructed. Allow 2-1/2 inches (6.35 cm) in front of
the mounting1 panel for clearance. Be sure to cut out a
ventilation hole in the mounting shelf according to the
dimensions in the drawing.
Installation
1
When the MC8207 is installed together with other McIn-
tosh Components, check clearances on all components
before proceeding.
6
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