McIntosh MA7000 User Manual
Integrated Amplifier
MA7000
Owner’s Manual
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549
The lightning flash 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 sufficient
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 apparatus
(including amplifiers) 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 third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does
not fit 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.
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.
11. Only use attachments/accessories specified by the
manufacturer.
12. Use only with the cart, stand, tripod, bracket, or
table specified 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 qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-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 filled 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, fire or the like.
2
Thank You
Table of Contents
Your decision to own this McIntosh MA7000 Integrated
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
Safety Instructions ............................................................
Thank You and Please Take a Moment .............................
Technical Assistance and Customer Service ....................3
Table of Contents .............................................................. 3
General Information .........................................................3
Connector and Cable Information ....................................4
Introduction .......................................................................
Performance Features .......................................................4
Dimensions .......................................................................5
Installation ........................................................................ 6
Connections:
Rear Panel Connections ....................................................
Connecting Components ...................................................
Connection Diagrams (Separate Sheet) .............. Mc1A/1B
Connecting Loudspeakers ................................................ 9
Remote Control:
Remote Control Push-buttons ......................................... 10
How to Operate by Remote Control ............................... 11
Front Panel Features:
Front Panel Displays, Controls, Push-buttons and Jack . 12
Operation:
How to Operate the MA7000 ..................................... 13-14
Additional Information:
Technical Description ................................................ 15-17
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 MA7000 Integrated Amplifier.
2. The Main AC Power going to the MA7000 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
MA7000 and other McIntosh Components are in their
Standby Power Off Mode, the Microprocessor’s Circuitry inside each component is active and communication
is occurring between them.
2
3
4
7
8
Copyright 2007 © by McIntosh Laboratory, Inc.
3
Connector Information, Introduction and Performance Features
Power
Control
Ground
N/C
Data
Signal
N/C
Data
Ground
PIN 2 PIN 1
PIN 3
PIN 2
PIN 1
PIN 3
Connector and Cable Information
XLR Connectors
Below is the Pin configuration for the XLR Balanced Input
and Output Connectors on the MA7000. Refer to the diagram for connection:
PIN 1: Shield/Ground
PIN 2: + Output
PIN 3: - Output
Power Control Connector
The MA7000 Power Control Output Jack sends Power On/
Off Signals when connected to other
McIntosh Components. A 1/8 inch
stereo mini phone plug is used for con
nection to the Power Control Output
on the MA7000.
Note: The Data and Power Control Connecting Cable is avail-
able 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.
Data Port Connectors
The MA7000 Data Out Ports send Remote Control Signals
to McIntosh Source Components. A 1/8
inch stereo mini phone plug is used for
connection.
McIntosh Plug-In Jumper Connector
The MA7000 utilizes a phono style Plug-In Jumper to con
nect the OUTPUT 1 (Preamplifier Output)
Jack to the PWR AMP (Power Amplifier
Input) Jack for each channel.
Note: The Jumper Connector is available
from the McIntosh Parts Department:
McIntosh Jumper Connector Part No. 117-781
-
-
Performance Features
• Power Output with Patented Autoformer
The MA7000 consists of a 250 watts per channel stereo
Power Amplifier with less than 0.005% distortion. The
McIntosh designed and manufactured Autoformer allows
connection of 2, 4 or 8 ohm Loudspeakers.
• Electronic Switching and Balanced Connections
The Preamplifier uses Logic Circuits controlling Electro
magnetic Switches on all inputs and operating functions
for reliable, noiseless, distortion free switching. There are
two Balanced Inputs for connection of source components
and a Balanced Preamplifier Output for driving an external
Power Amplifier.
• Power Guard
The patented McIntosh Power Guard circuit prevents the
amplifier from being overdriven into clipping with its
harsh distorted sound that can also damage your valuable
loudspeakers.
• Sentry Monitor and Thermal Protection
McIntosh Sentry Monitor power output stage protection
circuits ensure the MA7000 will have a long and trouble
free operating life. Built-in thermal protection circuits
guard against overheating.
• Illuminated Power Meters
The Illuminated Power Output Watt Meters on the
MA7000 are peak responding, and indicate the power out
put of the amplifier.
• Power Control and Remote Control
The Power Control Output connection provides convenient
Turn-On/Off of McIntosh Source Components. The Data
Ports together with the supplied Remote Control provides
control of McIntosh Source Components connected to the
MA7000.
-
-
Introduction
Now you can take advantage of traditional McIntosh stan
dards of excellence in the MA7000 Integrated Amplifier.
The Power Amplifier section of the MA7000, with a power
output of 250 watts per channel, will drive a pair of quality
Loudspeakers to a high level of performance. The flexible Preamplifier section provides connections for various
input sources and may also be used to drive an external
Power Amplifier. The MA7000 reproduction is sonically
transparent and absolutely accurate. The McIntosh Sound
is “The Sound of the Music Itself.”
4
• Special Power Supply
The large Power Transformer, multiple filter capacitors and
regulated Power Supply 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 Emitting Diodes
(LEDs). The glass Front Panel ensures the pristine beauty
of the MA7000 will be retained for many years.
Dimensions
17-1/2"
44.45cm
8-13/16"
22.38cm
Front View of the MA7000
Rear View of the MA7000
9-
7/16"
23.97cm
11-1/2"
29.21cm
16-13/16"
42.70cm
Side View of the MA7000
19-3/4"
50.17cm
3/16"
0.48cm
7/8"
2.22cm
8-1/4"
20.96cm
12-3/4"
32.39cm
16-7/16"
41.75cm
1-1/4"
3.18cm
2-1/4"
5.72cm
The following dimensions can assist in determining the
best location for your MA7000. There is additional information on the next page pertaining to installing the
MA7000 into cabinets.
Dimensions
5
Installation
8-5/16"
21.11cm
17-1/16"
43.34cm
MA7000 Front Panel
Custom Cabinet Cutout
Cutout
Opening
for
Ventilation
Cutout Opening for Ventilation
Support
Shelf
Cabinet
Front
Panel
Chassis
Spacers
MA7000 Side View
in Custom Cabinet
MA7000 Bottom View
in Custom Cabinet
9-1/2"
24.13cm
16"
40.64cm
11-1/2"
29.21cm
10"
25.4cm
4-5/8"
11.75cm
Cutout Opening
for
Custom Mounting
6"
15.24cm
Opening
for Ventilation
Note: Center the cutout Horizontally on the unit.
For purposes of clarity, the above
illustration is not drawn to scale.
The MA7000 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 MA7000 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 MA7000 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 MA7000.
Cool operation ensures the
longest possible
operating life for
any electronic
instrument. Do
not install the
MA7000 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.
6
Allow at least 6 inches (15.24cm) above the top, 2 inches
(5.08cm) below the bottom and 1 inch (2.54cm) on each
side of the Integrated Amplifier, so that airf low is not obstructed. Allow 20 inches (50.8cm) depth behind the front
panel. Allow 2-1/4 inch (5.72cm) in front of the mounting
panel for handle clearance. Be sure to cut out a ventilation
hole in the mounting shelf according to the dimensions in
the drawing.
Installation
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