MA6500 Integrated Amplifier
OWNERS
MANUAL
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MA6500
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549
Your decision to own this McIntosh MA6500 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:
Thank You, Please Take A Moment,
Customer Service and Table of Contents
Table of ContentsThank You
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, Display, Indicator Push-Button and
Switch ................................................................................ 9
How to Operate ................................................................ 10
Remote Control Push-Buttons ......................................... 12
How to Operate by Remote Control ................................ 13
Performance Charts ......................................................... 16
Specifications .................................................................. 18
Packing Instruction .......................................................... 19
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: 607-723-3512
Fax: 607-723-3636
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 Repair department.
For assistance on factory repair return procedure, contact
the McIntosh Repair Department at:
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3515
Fax: 607-723-1917
Copyright 1999 ã by McIntosh Laboratory, Inc.
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 MA6500
Integrated 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 16 Gauge (AWG) wire size or larger.
If your loudspeaker cables are 50 feet (38.1m) or less,
use 14 Gauge (AWG) wire size or larger.
If your loudspeaker cables are 100 feet (76.2m) or less,
use 10 Gauge (AWG) wire size or larger.
5. In the event that MA6500 Integrated Amplifier over heats, due
to improper ventilation and/or extremely high ambient
temperature, the built in protection circuits will activate. The
MA6500 Front Panel Power Guard LEDs will both
continuously indicate On and the audio output signal will be
muted. When the temperature of the MA6500 has returned to
a safe condition, sound will return and the Power Guard
Indicators will return to normal operation.
2
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.
3
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 fol-
lowing the operating instructions contained within
this owners manual. Adjust only those controls
that are covered by the operating instructions, as an
improper adjustment of other controls may result
in damage and will often require extensive work by
a qualified technician to restore the product to its
normal 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
The MA6500 Remote Controlled Integrated Amplifier is a
simple but elegant instrument that allows you to enjoy outstanding music reproduction. It includes a wide range of
convenient operating functions to enhance your listening
experience. The classic McIntosh MA6500 will perfectly
complement a McIntosh Loudspeaker System for a stereo
system of incomparable performance and style.
Performance Features
· Power Output
The MA6500 combines a 200 watts per channel power amplifier and a sophisticated control center in one compact
unit with less than 0.005% distortion.
· 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.
· Electronic Input Switching
Digital Logic integrated circuits drive Electromagnetic
switches on all six inputs and operating functions for reliable, noiseless, distortion free switching.
· Speaker Switching
Front panel Speaker push-buttons control two switched
outputs that allow you to send signals to two separate pairs
of loudspeakers.
· Sentry Monitor and Thermal Protection
McIntosh Sentry Monitor power output stage protection
circuits ensure the MA6500 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 MA6500
are peak responding, and indicate the power output of the
amplifier.
4
Installation
Installation
The MA6500 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 required
panel cutout, ventilation cutout and unit dimensions are
shown.
Always provide adequate ventilation for your MA6500.
Cool operation ensures the longest possible operating life
for any electronic instrument. Do not install the MA6500
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.
Front View of the MA6500
custom installed
A custom cabinet installation should provide the following
minimum spacing dimensions for cool operation. Allow at
least 6 inches (15.24 cm) above the top, 2 inches (5.08cm)
below the bottom and 1 inch (2.54 cm) on each side of the
amplifier, so that airflow is not obstructed. Allow 21 inches
(53.3 cm) depth behind the mounting panel, which includes clearance for connectors. Allow 1-1/8 inches (2.9
cm) in front of the mounting panel for knob clearance. Be
sure to cut out a ventilation hole in the mounting shelf according to the dimensions in the drawing.
NOTE: In Europe, if the MA6500 is custom mounted, an
additional ventilation opening of 6 inches (15.24 cm) in
height, running the full width of the front panel, needs
to be directly above the front top of the MA6500.
Side View of the MA6500
custom installed
Bottom View of the MA6500
custom installed
5
MA6500 Rear Panel Connections
MA6500 Rear Panel Connections
The EXT
(external)
SENSORS
for a McIntosh Key-
pad or IR
Connect the
MA6500 power
cord to a live AC
outlet. Refer to information on the
back panel to determine the correct
voltage
Sensor
POWER
CONTROL
Output sends
turn-on signal to a
McIntosh
Component
SPEAKERS 1 and 2
the signal output
controlled by the
front panel
SPEAKER pushbuttons
VIDEO inputs
for audio signals
from a LV, VCR,
TV or the optional MVS-3 A/
V Selector
TUNER inputs
accept signals
from the output
of a tuner
PH (Phono)/AUX INPUTS accept signals
from a Moving Magnet
phono cartridge or an
audio high level signal,
depending on the position of the PH/AUX
Switch
GND terminal
accepts a
ground wire
from a turntable
Fuse holder, refer
to information on
the back panel to
determine the
correct fuse size
and rating
SUM Data Port
connects to a
McIntosh Remote Control
Translator
HOME Data Port
is for use with the
optional HC-1
Home Controller
6
DATA PORTs
send signals to
compatible
source components to allow
you to remote
control them
POWER AMP IN inputs accept
signals from separate external
preamplifier
POWER AMP
INPUT Switch
allows an external preamplifier
connection to the
MA6500 Power
Amplifier
MAIN OUTPUTS supply
the Preamplifier Output
to an external power amplifier
TAPE OUTPUTS supply
record signals
for tape recorders
The PH/AUX
Switch selects
signals from a
Moving Magnet
phono cartridge
or an audio high
level signal
CD1 and CD2
inputs accept
signals from
separate CD
players
TAPE inputs
are for tape
recorders
How to Connect Loudspeakers and Sensor
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Components
1. Prepare the loudspeaker hookup cables as follows:
A. Carefully remove sufficient insulation from the
loudspeaker cable ends to just fit within the binding post with no
exposed wire accessible. Refer to figure 1.
B. If the cable is
stranded, carefully
twist the strands
together as tightly
as possible. Refer
to figures 2 & 3.
Note: If desired, the
twisted cable
section can be
tinned with a
solder iron to
keep the
strands
together and/
or attach
appropriate
connector ends.
How to Connect Loudspeakers
and Sensor Components
C. Insert the bare section of the cable end or connector
into the access hole, and tighten the terminal nut
clockwise until the cable is firmly clamped into the
terminal so the wires cannot slip out. Refer to figures 4, 5 & 6.
Note: The bare sections of the cable ends or the non
insulated part of the connectors must not be
exposed on either side of the terminal access
hole.
D. Repeats Steps A through C for each speaker cable
used with the amplifier.
4. Connect the loudspeaker cables to the appropriate terminals for your loudspeakers, being
careful to observe the correct polarities.
5. Install the plastic protective loudspeaker terminal covers that were
supplied with your amplifier. Refer
to figure 7.
6. Optionally connect a Coax cable from the EXT SENSOR to a McIntosh Wall Sensor or WK-2 Keypad in a
second room.
Figure 7
Right Loudspeaker
4 ohm
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Left Loudspeaker
4 ohm
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Second Room
Right Loudspeaker
4 ohm
McIntosh
IR Remote
Sensor
Left Loudspeaker
4 ohm
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7
How to Connect Audio Components
1. Connect the MA6500 power cord to a live AC outlet.
2. Connect a cable from the TAPE 1 OUTPUTS to the
Record Inputs of a tape recorder and the TAPE 1 INPUTS to a tape recorder Outputs. Connect a second
tape in the same manner to the Tape 2 inputs and outputs.
3. Connect a cable from a McIntosh D/A Converter UNBALANCED outputs to the CD2 INPUTS.
4. Connect a cable from the McIntosh Transport Digital
OPTICAL output to the McIntosh D/A Converter Digital OPTICAL input.
How to Connect Audio
Components
5. Connect a cable from a McIntosh Tuner to the TUNER
INPUTS.
6. Connect cables from a Turntable to the PH/AUX INPUTS and the Turntable Ground Connection to the
GND grounding post.
7. Connect cable(s) from the POWER CONTROL jack to
the Power Control In on a McIntosh component or
Power Controller.
8. Connect a cable(s) from the DATA PORTS to the components that are to be controlled by the MA6500.
McIntosh Tuner
To AC Outlet
McIntosh PC-3
McIntosh CD Transport
8
Tape Recorder
McIntosh D/A Converter
Turntable
How to Connect the MA6500 for Video
Switching
1. Connect a Data cable from the MA6500 VIDEO DATA
PORT to the MVS-3 DATA IN jack.
2. Connect the MVS-3 CONTROL CENTER AUDIO
OUTPUTS to the MA6500 VIDEO INPUTS.
3. Connect the MVS-3 VIDEO MONITOR OUTPUT to a
TV or Monitor.
4. Connect a McIntosh DVD/CD Player Audio Outputs to
How to Connect the MA6500
for Video Switching
the MVS-3 V-AUX AUDIO INPUTS, the Video Output to the MVS-3 VIDEO INPUT and the Control Out
to the MVS-3 DATA OUTPUT jack.
Note: The S-Video Connections may also be used when the
Monitor/TV supports them.
5. Connect other video source components to the appropriate audio and video and data jacks on the MVS-3.
McIntosh Video/Audio Selector
McIntosh DVD / Video CD / CD Player
Monitor
9
MA6500 Front Panel Controls, Push-Buttons
and Switch
MA6500 Front Panel Controls, Push-
Buttons and Switch
BASS control provides
12dB boost or cut with
a flat center position
METER indicates the
Left Channel Power
Output of the amplifier
.
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TREBLE control provides 12dB boost or
cut with a flat center
position
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POWER OUTPUT
The BALANCE control
allows you to adjust the
relative volume balance
between channels
POWER GUARD
LEDs light when the
amplifier channel
METER indicates the
Right Channel Power
Output of the amplifier
POWER GUARD circuit activates
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VOLUME control
allows you to adjust
the listening level of
both channels
POWER
switch turns
all AC power
completely
ON or OFF
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IR Sensor
receives
commands
from a remote control
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B4=B>A
Select any
one of the
six Audio
signal
sources
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HEADPHONES jack
allows connection of
Stereo Headphones for
private listening
MONO push-button
combines the left and
right channel signals for
Mono operation
7403?7> =4B
SPEAKERS
1 and 2
push-buttons
turn the
speakers On
or Off
MUTE pushbutton mutes
the listening
audio
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LOUDNESS
provides frequency response contoured to compensate for the
behavior of the
human ear at
softer listening
levels
STANDBY/ON
push-button turns
the MA6500 ON,
or OFF (Standby)
How to Operate the MA6500
How to Operate the MA6500
Power On
Press the POWER switch to ON. The Red LED above the
STANDBY/ON push-button, lights to indicate the
MA6500 is in Standby mode. To turn On the MA6500,
press the
STANDBY/
ON push-
17
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button. The
MUTE LED
will light for
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approximately two
seconds after turn on.
Figure 1
Refer to figures 1 and 2.
Note: For normal operation, turn the
MA6500 On and Off with the
Standby/On push-button. If the
amplifier is not going to be used
for an extended time, turn off all
AC power with Power Switch.
You may also turn On the
MA6500 by simply pressing the
desired source selection pushbutton switch on the Front
Panel or Remote Control.
Source Selection
Select the desired source with the appropriate push-button switch on the
Front Panel or Remote Control. Refer
to figures 2 and 3 and page 15 for additional information.
Volume Control
Adjust the VOLUME control for the
desired listening level.
Figure 2
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PH/AUX Inputs
When using a phono player with a moving magnet cartridge connected to the PH/AUX inputs, set the PH-AUX
switch to the PH position.
When using an auxiliary
program source component
connected to the PH/AUX
inputs, set the PH-AUX
switch to the AUX position.
Refer to figure 4.
Figure 4
Balance Control
Adjust the BALANCE control as needed to achieve approximately equal listening volume levels in each loudspeaker. Turn the BALANCE to the Left to emphasize the
left channel by reducing the level of the right channel. Turn
the BALANCE to the right to emphasize the right channel
by reducing the level of the left channel.
Bass and Treble Controls
Adjust the BASS and TREBLE controls to suit your listening preferences. The bass or treble intensity can be increased with clockwise rotation and decreased with counterclockwise rotation. All tone control circuit elements are
removed from the signal path when the controls are in the
center or flat position.
Loud Switch
Press the LOUD push-button to add loudness bass compensation to the volume control for improved low level listening.
Mono
Press the MONO push-button to combine left and right stereo signals to mono at the SPEAKERS 1 and 2 and HEADPHONES output.
Mute
Press the MUTE push-button to mute audio in all outputs
except the HEADPHONES and TAPE OUTPUT. The
MUTE LED above the push-button will flash on and off to
indicate that Mute is active. To unmute audio, press
MUTE, press the Remote Control Volume push-button(s)
or press an Input push-button.
Figure 3
11
How to Operate the MA6500 cont
Speakers 1 and 2
Press SPEAKERS 1 or 2 push-buttons to switch the two
pairs of speakers on or off. You can press either push-button individually, or both together. Refer to figure 5.
Headphones
Jack
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Connect a pair
of dynamic
headphones to
the Headphones
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Jack for private
listening. Press
Mute to mute
all other outputs
Figure 5
including the amplifier connected to the loudspeakers. Refer to figure 5.
Reset of Microprocessors
In the event that the controls of the MA6500 stop functioning, push the POWER switch OFF and wait about two minutes. Then push the POWER switch ON followed by pushing the STANDBY/ON push button. This will reset the
MA6500 microprocessors and the Integrated Amplifier
should be functioning normally.
Note: The above condition is usually caused by either
interruptions in AC power and/or major changes that
may occur in AC power line voltage.
the second/third pair to the MA6500. Set the rear panel
POWER AMP INPUT Switch to the INT position. Refer to
figure 6.
Note: The MA6500 VOLUME Control will affect the sound
level of all the loudspeakers.
How To Make A Tape Recording
1. Select the source signal you wish to record with the
appropriate Front Panel input push-button. If you wish
to record from an Audio/Video source connected to the
optional MVS-3 Audio/Video Selector, using the Remote Control, select the desired source connected to
the MVS-3. Refer to figure 8.
2. Adjust the record level using the tape recorder volume
control and proceed with the recording process.
3. To listen to the tape playback of the program source
just recorded, press the TAPE input push-button. Refer
to figure 7.
Note: The MA6500 TAPE OUTPUTS are not affected by the
VOLUME or BALANCE controls.
CA41;410BB
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Using a Separate Power Amplifier
There are two different ways to use a separate power amplifier with a MA6500. The first way is to use the separate
amplifier instead of the MA6500 built-in power amplifier.
Connect the loudspeakers to the separate power amplifier
and set the rear panel POWER AMP INPUT Switch to the
EXT position. Refer to figure 6.
Note: When a separate power
amplifier is connected to
the MA6500 and the
POWER AMP INPUT
Switch to the EXT
position, the MA6500
Front Panel SPEAKERS
Push-button Switches
will no longer function.
Figure 6
The second way is to use both a separate power amplifier
and the MA6500 built-in power amplifier. Connect one
pair of loudspeakers to the separate power amplifier and
12
Figure 7
How to Read the Power Output Meters
The MA6500 Power Output Meter scales are based on using 2, 4 and 8 ohm loudspeakers. The meters are peak responding and indicate the power output of each channel
with high accuracy when the amplifier is reproducing music. Refer to figure 8.
WATTS
How to Operate the MA6500, cont
.
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Figure 8
.
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POWER OUTPUT
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13
Press to Power the
MA6500 ON or OFF
Selects one of the twelve
High Level Audio/Video
Sources or Phono Input
Selects CD Player or
Tape Recorder Functions
and also performs various
functions on a variety of
McIntosh Components
Press the push-button
to illuminate the keys
Selects the Rewind Mode
on Disc Players and Tuning Down the AM/FM
Dial
Use to select tuner
presets, disc tracks or
any numbered operation
Selects Speaker 1, AM
Tuner Operating Functions and Disc Selection
on certain McIntosh CD
Players
Mutes the audio
Remote Control Push-Buttons
Turns AC Power ON or OFF to
certain McIntosh Components
when connected via the Data Port
Selects Functions for
McIntosh Home Controller and as a shift key
when used with the AM
or FM push-buttons to
select Speakers 1 or 2
Selects On Screen Functions for McIntosh DVD
Players and certain CD
Players
Selects the Fast Forward
Mode on Disc Players
and Tuning Up the AM/
FM Dial
Press to review Tuner
Station Presets and selects certain functions on
McIntosh CD Players
Press MODE to switch
between Stereo or Mono
Modes
Press TRIM to turn the
Loudness Control On or
Off
Selects Speaker 2, FM
Tuner Operating Functions and Track Selection
on certain McIntosh CD
Players
14
Adjusts the volume
level up or down
Note: The Remote Control push-buttons that are
blackened out are for use with other
McIntosh Control Centers.
How to Operate by Remote Control
The supplied remote control is capable of directly controlling the functions of contemporary McIntosh Source Components connected to the MA6500. Earlier McIntosh
source components and other brand source components can
be controlled by the MA6500 with the addition of a McIntosh Remote Control Translator (RCT).
Note: Your McIntosh Dealer can assist you with the
installation and operation of the Remote Control
Translator (RCT).
Mute
Press the MUTE push-button to mute audio at the MAIN
OUTPUT, SPEAKERS 1 & 2. The TAPE OUTPUTS and
HEADPHONES output are not affected by the MUTE
function. The MUTE LED above the push-button will flash
on and off to indicate that Mute is active. Press MUTE a
second time to unmute audio.
Mono
Press the MONO push-button to combine left and right stereo signals to mono at the MAIN OUTPUT, SPEAKERS 1
& 2 and HEADPHONE Output.
Trim
Press the TRIM push-button to active the Loudness Compensations circuit.
Disc and Track
Use the DISC and TRACK push-buttons when a CD player
or changer is being used.
Tuner Push-buttons
Press the AM or FM push-button to select the desired
broadcast band. Press and release the Channel Upp or
Downqpush-button to move from station to station. Press
and hold a Channel Upp or Downq push-button to move
continuously from station to station. Press REVIEW to
start the automatic brief audition of each of the presets
stored in the tuner memory. Press REVIEW a second time
to stop on a station preset and exit the Review process.
Volume
Press the Up or Down VOLUME push-button to raise or
lower the listening volume level.
Note: The TAPE OUPUTS are not affected by volume
changes.
Amplifier Selection
Press HOME push-button followed by the SPEAKER 1 or
2 push-buttons either separately or together, to control the
rear panel SPEAKER 1 & 2 which can feed signals to a
power amplifier or other accessory component.
Input Source Selection
Press any of the twelve input push-buttons to select a program source. When one of the Audio/Video Inputs (SAT,
LV, TV, VCR, VCR2 and DVD) are selected by remote
control, the MA6500 will automatically switch to the
VIDEO Input. If the Front Panel VIDEO Push-button is
pressed, the source device connected to the VIDEO INPUT
Jacks will be heard. When the optional McIntosh MVS Audio/Video Selector is added, multiple Audio/Video Inputs
Sources, such as LV, TV, VCR, VCR2 and DVD (V-Aux),
will become available by just pressing the desired program
source push-button on the remote control.
CD/Tape Functions
Use these push-buttons to operate a CD player, CD changer
or tape recorder.
Numbered Push-buttons
Press push-buttons 0 through 9 to access tuner station presets or CD tracks/discs.
Acc On
Press ACC ON to turn the power ON to a McIntosh Disc
Player.
Acc Off
Press ACC OFF to turn the power OFF to a McIntosh Disc
Player.
E
Press E to perform various functions on a variety of McIntosh Components. It will also pause the playing of a disc or
tape player.
Lighting
Press and release the LIGHTING push-button to momentarily illuminate the upper half of the remote control pushbuttons.
Note: While the LIGHTING push-button is being depressed,
the remote control will be unable to send a remote
command. When the LIGHTING push-button is released
the push-buttons will continue to stay illuminated for
approximately three seconds thus allowing you to send
the desired command.
15
Performance Charts
dB
(Decibel)
N N N N N
Hz (Hertz)
Frequency Response
dB
(Decibel)
Loudness Compensation Range
N N N N N
Hz (Hertz)
Note: The Loudness Compensation Range is a combination of
the Loudness Circuitry and the Volume Controls
rotational position. When the Loudness Circuit is active,
the first 50% rotation of the Volume Control achieves
maximum loudness compensation, as shown on the
upper curve. When the Volume control is rotated beyond
the 50% point, the loudness compensation is gradually
reduced, as shown by the remaining curves.
16
Performance Charts, cont
dB
(Decibel)
N N
Bass Control Adjustment Range
Hz (Hertz)
dB
(Decibel)
N N N N N
Hz (Hertz)
Treble Control Adjustment Range
17
Specifications
Power Output
250, 200, 120 watts minimum sine wave continuous average power output per channel, both channels operating,
into a load impedance of 2, 4, and 8 ohms respectively.
Total Harmonic Distortion
0.005% maximum at any power level from 250 milliwatts
to rated power per channel from 20Hz to 20,000Hz, both
channels operating.
Intermodulation Distortion
0.005% maximum if instantaneous peak output per channel
does not exceed twice the rated output with both channels
operating for any combination of frequencies from 20Hz to
20,000Hz.
Output Load Impedance
2, 4 or 8 ohms
Rated Power Band
20Hz to 20,000Hz
Dynamic Headroom
2.4dB at 2, 4 or 8 ohms
Specifications
Maximum Input Signal
Phono, 90mV
High Level, 8V
Preamplifier Maximum Voltage Output
Phono, 90mV at tape output
High Level, 8V at tape output
Main Out, 8V at preamp output
Voltage Gain
High Level to Tape: 0dB
High Level to Main: 20dB
Tone Controls
Bass Control ± 12dB @20Hz
Treble Control ± 12dB @10kHz
Power Requirements
100 Volts, 50/60Hz at 4.8 Amps
110 Volts, 50/60Hz at 4.4 Amps
120 Volts, 50/60Hz at 4.0 Amps
220 Volts, 50/60Hz at 2.0 Amps
230 Volts, 50/60Hz at 2.0 Amps
240 Volts, 50/60Hz at 2.0 Amps
Damping Factor
60 at 2 Ohms
120 at 4 ohms
230 at 8 ohms
Frequency Response
+0, -0.5dB from 20Hz to 20,000Hz
Signal To Noise Ratio (A Weighted)
90dB (84dB IHF) below 10mV input, Phono Input
100dB (90dB IHF) below rated output, High Level
110dB below rated output, Power Amplifier
Sensitivity
Phono, 2.5mV for 2.5V rated output (0.5mV IHF)
High Level, 250mV for 2.5V rated output (50mV IHF)
Power Amplifier Input, 2.5V for rated output
Input Impedance
Phono, 47K ohms, 65pF
High Level, 22K ohms
NOTE: Refer to the rear panel of the MA6500 for the correct
voltage.
Dimensions
17-1/2 inches (44.5 cm) wide by 7 1/16 inches (17.9 cm)
high. Depth behind front panel is 18-1/8 inches (46 cm)
including connectors. Knob clearance required in front of
the mounting panel is 1-1/8 inches (2.9 cm).
Weight
41 pounds (18.6 Kg) net, 60 pounds (27.2 Kg) in shipping
carton
18
Packing Instructions
In the event it is necessary to repack the equipment for
shipment, the equipment must be packed exactly as shown
below.
tached to the bottom of the equipment. Two #10 x 2-1/4
screws and washers must be used to fasten the unit securely
to the bottom pad and wood skid. This will ensure the
proper equipment location on the bottom pad. Failure to do
this will result in shipping damage.
if they are all in good serviceable condition. If a shipping
carton or any of the interior part(s) are needed, please call
or write Customer Service Department of McIntosh Laboratory. Please see the Part List for the correct part numbers.
It is very important that the four plastic feet are at-
Use the original shipping carton and interior parts only
Packing Instructions
Quantity Part Number Description
1 033888 Shipping carton only
4 033887 End cap (Foam pad)
1 033697 Inside carton only
1 033725 Top Pad
1 034008 Bottom pad
3 017218 Plastic foot (spacer)
1 033699 Wood skid
2 101169 #10 x 2-¼ Wood screw
2 104033 #10 x 1-¾ Flat washer
4 017218 Plastic foot
4 100159 #10-32 x ¾ Machine screw
4 104083 #10 x 7/16 Flat washer
19
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, NY 13903
McIntosh Part No. 04063201
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