Owner’s
Manual
MR85 AM/FM Tuner
MR85
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549
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Safety Instructions
IMPORTANT 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.
PLEASE READ THEM BEFORE
OPERATING THIS EQUIPMENT.
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 dis-
connect the antenna or cable system. This will prevent
damage to the product due to lightning or power line
surges.
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 product’s
enclosure that may be of sufficient magnitude to consti-
8. Do not use attachments not recommended in this
owner’s manual as they may cause hazards.
tute a risk of electric shock to persons.
AVIS RISQUE DE CHOC -
NE PAS OUVRIR.
Installation:
9. Locate the equipment for proper ventilation. For ex-
ample, 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(s)
(including amplifiers) that produce heat.
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.
11. Mount the equipment in a wall or cabinet only as de-
scribed in this owner’s 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, caus-
ing serious injury to a person, and serious damage to
the product.
General:
1. Read all the safety and operating instructions, con-
tained in this owner’s manual, before operating this
equipment.
2. Retain this owner’s manual for future reference about
safety and operating instructions.
Connection:
3. Adhere to all warnings and operating instructions.
4. Follow all operating and use instructions.
14. Connect this equipment only to the type of AC power
source as marked on the unit.
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 pres-
sure levels. Continued exposure to high sound pres-
sure levels can cause permanent hearing impair-
ment or loss. User caution is advised and ear protec-
tion 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 in-
serted to prevent blade exposure.
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, con-
venience receptacles, and the point where they exit
from the instrument.
16. Do not defeat the inherent design features of the polar-
ized 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 re-
place your obsolete outlet. Do not defeat the safety
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purpose of the grounding-type plug.
20. Do not permit objects or liquids of any kind to be
pushed, spilled and/or fall into the equipment through
enclosure openings.
21. Unplug the power cord from the AC power outlet
when left unused for a long period of time.
17. Do not overload wall outlets, extension cords or inte-
gral convenience receptacles as this can result in a risk
of fire or electric shock.
Outdoor Antenna:
Repair of Equipment:
18. If an outdoor antenna is connected to the antenna ter-
minal, be sure the antenna system is grounded to pro-
vide some protection against voltage surges and built
up static charge. In the U.S.A., section 810 of the Na-
tional Electrical Code, ANSI/NFPA No. 70-1978, pro-
vides information on the proper ground for the mast
and supporting structure, ground for the lead-in wire to
an antenna discharge unit, and size of ground conduc-
tors, location of antenna-discharge unit, connection to
ground electrode. For ground wire:
22. Unplug this equipment from the wall outlet and refer
servicing to a qualified service personnel under the fol-
lowing 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 owner’s 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.
A. Use No. 10 AWG (5.3 mm2) copper No. 8 AWG
(8.4 mm2) aluminum, No. 17 AWG (1.0 mm2) cop-
per-clad steel, bronze, or larger as ground wire.
B. Secure antenna lead-in and ground wires to the
house with stand-off insulators spaced from 4 feet
(1.2 meters) to 6 feet (1.83 meters) apart.
E. The equipment has been dropped or damaged in any
way.
C. Mount antenna discharge unit as closely as possible
to where lead-in enters house.
F. The equipment exhibits a distinct change in perfor-
mance - this indicates a need for service.
23. Do not attempt to service beyond that described in the
operating instructions. All other service should be re-
ferred to qualified service personnel.
D. Use jumper wire not smaller than No. 6 AWG (13.3
mm2) copper or equivalent when separate antenna
grounding electrode is used.
24. When replacement parts are required, be sure the ser-
vice technician has used replacement parts specified by
McIntosh or have the same characteristics as the origi-
nal part. Unauthorized substitutions may result in fire,
electric shock, or other hazards.
25. Upon completion of any service or repairs to this prod-
uct, ask the service technician to perform safety checks
to determine that the product is in proper operating
condition.
Care of Equipment:
19. Clean the instrument by dusting with a dry cloth. Un-
plug 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.
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Introduction and Performance Features
Introduction
The MR85 AM/FM Tuner is an elegant instrument that al-
lows you to enjoy outstanding music reproduction. It in-
cludes a wide range of convenient operating functions to
enhance your listening experience. The classic McIntosh
MR85 will perfectly complement a McIntosh System of
incomparable performance and style.
· Optional Second Tuner Module
A second fully independent McIntosh TM1 Tuner Module
may be added to the MR85 by your dealer. This is ideal for
applications where two tuners may be used at the same
time, such as Multizone Systems or listening to one station
while recording another station. The TM1 is the most eco-
nomical way to add a second high performance McIntosh
Tuner to a system.
Performance Features
· Preset Stations
· Special FM RF Amplifier
Nine AM and nine FM station presets for each tuner mod-
ule make it easy to listen to your favorite stations.
Double-Diffused Metal Oxide Field Effect Transistor
(DMOS-FET) RF amplifier increases sensitivity and Cross
Modulation rejection.
· Custom Preset Naming
All 9 AM and 9 FM station presets for each tuner module
may be custom labeled with any desired name up to 8 char-
acters. For example, FM Preset Number 3 (92.50MHz) can
be renamed “JAZZ 7”, or “WXYZ”.
· External AM RF Amplifier
The MR85 includes an electrostatically shielded AM RF
Amplifier Stage with a shielded connecting cable that al-
lows it to be located in a remote area, away from sources of
interference. The Amplifier Stage can be adjusted for opti-
mum signal strength at both ends of the AM dial and can
be positioned for the best possible reception of even the
weakest AM stations.
· Permanent Memory
Station Presets and Functions Modes are retained in Perma-
nent Memory even when AC power is turned off.
· Alphanumeric Fluorescent Display
· Flywheel Manual Tuning
The Multi-function Front Panel Display indicates station
frequency, station preset number, signal strength, stereo
and broadcast band. Custom Naming for each Preset can
also be displayed. The display intensity is fully adjustable.
A newly designed, optically encoded weighted flywheel
system makes ‘dialing in’ stations an easy job. Reminiscent
of the dial-cord flywheel tuning method found in classic
McIntosh Tuners.
· Adjustable Output Level
· FM Stereo Auto Blend Circuitry
Both Tuner 1 and the optional Tuner 2 have Variable Out-
puts which can be used to match audio levels between vari-
ous sources.
An automatic variable stereo separation control circuit is
used to reduce background noise when receiving weak ste-
reo stations.
· Remote Control Capable
When used in conjuction with a McIntosh Control Center
or Multizone Controller, tuning functions can be performed
with a remote control.
· Automute
The MR85 automatically mutes when manually tuning be-
tween stations, yet provides the ability to be switched off
when searching for very weak stations.
· Special Power Supply
Fully regulated power supply with double shielded power
transformer ensures stable noise free operation even if the
power line should vary.
· Spatial Sound Enhancement
A sound Spatializer circuit can be selected for Tuner 1 En-
hancement. This circuit can expand the sound field for FM
stations with poor separation, or can provide a pseudo-ste-
reo effect for AM stations.
5
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Dimensions
MR85 Dimensions
The following dimensions can assist in determining the
best location for your MR85. There is additional informa-
tion on the next page pertaining to installing the MR85 into
cabinets.
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Installation
Installation
The MR85 can be placed upright on a table or shelf, stand-
ing 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 MR85.
Cool operation ensures the longest possible operating life
for any electronic instrument. Do not install the MR85 di-
rectly 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 defi-
nite asset in main-
taining all the sys-
tem components
at the coolest pos-
sible operating
temperature.
A custom cabi-
net installation
should provide the
following mini-
mum spacing di-
mensions for cool
operation. Allow
at least 2 inches
(5.08 cm) above
the top, 2 inches
(5.08cm) below
the bottom and 1
inch (2.54 cm) on
each side of the
AM/FM Tuner, so
that airflow is not
obstructed. Allow
20 inches (50.8
cm) depth behind
the front panel.
Allow 1 inch
(2.54 cm) in front
of the mounting
panel for knob
clearance. Be sure
to cut out a venti-
lation hole in the
mounting shelf
according to the
dimensions in the
drawing.
7
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MR85 Rear Panel and RAA1 Top Panel Connections
ANTENNA 1 AM
ANT connector for
the supplied McIn-
tosh RAA1
POWER CONTROL IN
TUNER 2 OUTPUT
LEVEL control re-
served for the op-
tional TM1 second
tuner module
jack accepts a turn on sig-
nal from a McIntosh Con-
trol Center. The OUT jack
sends the turn on signal to
another McIntosh product
Spaces reserved for
the optional TM1
second tuner module
TUNER 1 VARIABLE
OUTPUTS supply audio
signals that can be adjusted
by the rear panel TUNER 1
OUTPUT LEVEL control
TUNER 1 DATA IN
jack receives tuner
control and operating
data from a McIntosh
Control Center to
control the Tuner 1
Module
ANTENNA 1
TUNER 1 FIXED
TUNER 2 DATA
IN jack reserved
for the optional
TM1 second tuner
module
75W (ohm) FM
ANT connects to
an external FM
antenna or cable
OUTPUTS supply
audio signals at a
volume level that
cannot be changed
TUNER 1 OUTPUT
Connect the MR85 power cord
TUNER 2 FIXED and
VARIABLE OUTPUTS
jacks reserved for the
optional TM1 second
tuner module
LEVEL control adjusts
the volume level of the
Variable Outputs
to a live AC outlet. Refer to
information on the back panel
of the MR85 to determine the
correct voltage
EXT TUNER connects
to the MR85 Tuner
AM ANT input
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How to Connect
How to Connect
1. Connect a data cable from the TUNER 1 DATA IN jack
to the TUNER DATA PORT of a McIntosh Control
Center or preamplifier.
5. Connect with the supplied cable, from the 5 Pin Socket
of the McIntosh RAA1 Remote AM Antenna to the
MR85 Tuner AM ANT DIN socket.
2. Connect a power control cable from the POWER CON-
TROL IN jack to the POWER CONTROL OUT or
ACC jack of a McIntosh Preamplifier, Control Center
or other McIntosh component.
6. Plug the MR85 AC Power Cord into a live AC Outlet.
3. Connect shielded cables from the TUNER 1 FIXED
OUTPUTS to the TUNER INPUTS of a preamplifier
or control center.
Note: An optional connection would be to use the TUNER 1
VARIABLE OUTPUTS.
4. Connect the FM Antenna or Cable (from the Cable
Company) to the MR85 Tuner 75W (Ohm) FM
ANTenna connector.
McIntosh Control Center
To AC Outlet
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How to Connect with Optional Tuner Module
How to Connect with Optional Tuner Module
1. Connect a data cable from the TUNER 1 DATA IN jack
to the TUNER DATA PORT of a McIntosh Multizone
Control Center.
2. Connect a data cable from the TUNER 2 DATA IN jack
to the LOCAL ZONE 1 AUX IN DATA PORT of a
McIntosh Multizone Control Center.
3. Connect a power control cable from the POWER CON-
TROL IN jack to the POWER CONTROL OUT of a
McIntosh Multizone Control Center.
4. Connect shielded cables from the TUNER 1 FIXED
OUTPUTS to the TUNER INPUTS of a McIntosh
Multizone Control Center.
OUTPUTS to the LOCAL ZONE 1 AUX IN AUDIO
Jacks of a McIntosh Multizone Control Center.
Note: An optional connection would be to use the TUNER 2
VARIABLE OUTPUTS.
6. Connect the FM Antenna(s) or Cable (from the Cable
Company) to the MR85 Tuner 75W (Ohm) FM
ANTenna connector for both Tuner 1 and 2.
Note: If the same FM Antenna or Cable (from the Cable
Company) is used for both Tuner 1 and 2, a suitable coaxial
splitter must be utilized.
7. Connect with the supplied cables, from the 5 Pin Socket
of the McIntosh RAA1 Remote AM Antenna(s) to the
MR85 Tuner AM ANT DIN socket(s) for both Tuner 1
and 2.
Note: An optional connection would be to use the TUNER 1
VARIABLE OUTPUTS.
5. Connect shielded cables from the TUNER 2 FIXED
8. Plug the MR85 AC Power Cord into a live AC Outlet.
To AC Outlet
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Front Panel Controls, Displays, Push-Buttons and Switch
Enters desired radio
stations and custom
names into memory
Indicates the Preset
Memory Location
Indicates the
Broadcast Band of
the Radio Station
Indicates reception of
a FM Stereo Signal
Turns all
AC Power
On or Off
Selects Preset
Indicates the Radio
Station Frequency
Indicates the
Tuning Knob for
manual tuning of
radio stations
Stations and is
used for custom
station naming
relative Signal
Strength of the
radio station
signal
Selects front panel
Selects the
Mono Mode
of operation
Select AM or
FM tuning
bands
Selects the
display brightness and
display cursor posi-
tion during custom
station naming
Automute Function
which mutes the
audio between ra-
dio stations when
manually tuning
Adds Spatial Audio
Enhancement to the
received sound
Selects which tuner
Automatically tunes
Turns the
MR85 On
and Off
module is controllable
from the front panel
and displayed
up or down the AM
or FM broadcast
band
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How to Operate
Power On
changing the Front Panel Alphanumeric Display from indi-
cating the Station Frequency (default), to displaying per-
Press the POWER switch to ON. The Red LED, above the
STANDBY/ON Push-button, lights to indicate the MR85 is sonalized names of your choice. Example, instead of the
in Standby Mode. To turn ON the MR85 press the
STANDBY/ON push-button. Refer to figure 1.
Note: The POWER Switch is only intended to be switched OFF
when the MR85 Tuner is not used for extended periods
of time, like while away on vacation. During normal
operation, the POWER Switch should stay in the ON
position. Press the STANDBY/ON Push-button for
turning the MR85 ON and OFF. When the Power
Control Cable is connected to a McIntosh Control
Center, A/V Multizone System Controller or
Front Panel Display showing Preset number 3 as “105.70
FM” it could display “JAZZ 7”. Refer to “How to Assign
Presets Stations and Custom Names” for further informa-
tion.
Note: The PRESET Selection Switch will not access Station
Presets that have been left blank. If no Presets have
been assigned, the Front Panel Display will show “NO
PRESETS” until at least one station has been entered
into memory. Refer to figure 2 below.
Preamplifier, the MR85 Tuner will automatically switch
ON and OFF.
The McIntosh MR85 is an advanced design AM/FM Tuner
with many desirable performance features to enhance your
enjoyment of radio broadcasts. There are three modes of
tuning to an AM/FM Broadcast Station. There is Manual
Tuning using the TUNING Knob; Seek Mode Station Se-
lection using the SEEK p (Up) and q (Down) Push-
button(s); and Preset Station Selection using the PRESET
Selection Knob.
Figure 2
Manual Tuning
Manual Tuning is provided through the Front Panel TUN-
ING Knob. Rotate the TUNING Knob clockwise to tune up
in frequency, 10kHz steps for AM or 200kHz steps for FM.
Spin the knob to tune up continuously. Rotate the TUNING
Knob counterclockwise in the same manner to tune down
in frequency. When a station is selected, the Front Panel
Display will indicate (from left to right) a Preset Number,
if that station has been assigned a Preset, the FM Station
Frequency, the received Stations Signal Strength from 1 to
9, and a dot (located to the right of the Signal Strength
Digit) if the station is broadcasting stereo.
Note: When the MR85 AM/FM Tuner is connected to a
McIntosh Control Center, A/V Multizone System
Controller or Preamplifier via a data connection ,the
tuner functions such as SEEK, direct PRESET Selection
and REVIEW of Preset Stations may be controlled by
the McIntosh Remote Control and/or Keypad.
Preset Selector Switch
Note: FM band indications are in Megahertz. In the US and
Canada, they change frequency in 200kHz steps. The
second digit to the right of the dot which displays a 0, is
used for FM stations in Europe where stations change
in 50kHz steps. In Europe and Japan, the AM display
changes in 9kHz steps.
The PRESET Selection Switch allows selection of desired
radio stations that have already been stored into memory.
There are up to 9 AM and 9 FM stations that can be stored
for the Tuner 1. The optional secondary Tuner 2 Module
also has up to 9 AM and 9 FM stations that can be stored
into memory. The PRESET Selection Switch also assists in
Figure 1
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How to Operate
Enter Mode
Note: If the optional secondary Tuner 2 Module is not
installed, the TUNER Selector will stay on the TUNER 1
selection.
The ENTER Push-button is used to enter into memory, de-
sired AM or FM radio stations and any custom naming you
might wish. A station Preset and its custom name may also
be cleared from memory using the ENTER Push-button.
The LED above the ENTER Push-button will light when in
the Preset Enter Mode.
AM/FM Band Selector
Select the AM or FM Broadcast Band by pressing the AM/
FM push-button.
Note: When the Front Panel Alphanumeric Display is
displaying the radio station frequency (default), the
letters AM or FM will appear to the right of the tuned
stations frequency to indicate the broadcast band.
Display Modes
The DISPLAY Push-button allows for adjustment of the
Front Panel Alphanumeric Display Brightness from Off (0)
to Bright (31) and for Custom Naming Station Presets with
the name of your choice. Refer to figure 3.
SEEK p and q
Press and release the Front Panel SEEK p (Up) and q
(Down) Push-button(s), to move from one station to the
next. Press and hold the SEEK Push-button to move
continuously up or down the broadcast band.
Automute Function
Figure 3
When manually tuning through the band, the outputs will
unmute only when a strong radio station is sensed and re-
ceived. Sometimes it is desirable to search for a very weak
station and the AUTOMUTE Function can be switched
OFF. This will allow all stations to be heard as well as
noise and interference normally found in-between stations.
The LED above the AUTOMUTE Push-button will light
when the Automute Function is active.
Spatial Enhancement
Press the Spatial push-button to add Audio Enhancement to
either an AM or FM signal. For example, AM Stations with
monaural signals will have a simulated stereo effect. The
LED above the SPATIAL Push-button will light when in
the Spatial Mode.
Note: The Spatial Enhancement function is for the Tuner 1
Note: The AUTOMUTE Function can only be switched OFF
when manually tuning to a station using the TUNING
Knob. When using SEEK p (Up) and q (Down) Push-
button(s), the AUTOMUTE Function will always be
engaged.
only.
Mono Mode
Press the MONO Push-button to combine left and right ste-
reo signals to monaural. This is useful when the MR85
Tuner is receiving a very weak Stereo Signal that might be
accompanied with a high degree of background noise. By
switching to MONO Mode, most of the background noise
will disappear, thus making the station more listenable. The
LED above the MONO Push-button will light when in the
MONO Mode.
Output Level Control (Rear Panel)
There are both FIXED OUTPUTS and VARIABLE OUT-
PUTS on the MR85 Rear Panel for Tuner 1 and optional
secondary Tuner 2 Module. For most applications, the vol-
ume level at the FIXED OUTPUTS will match other
sources connected to the McIntosh Control Center or
Preamplifier. If the volume level from the tuner is higher
than from other sources, the VARIABLE OUTPUTS to-
gether with the OUTPUT LEVEL Control may be used to
reduce the tuner volume level.
Note: When the tuned to an AM Radio Station the tuner will
automatically switch to the MONO Mode.
Tuner Selector
The Tuner Selector selects between the default Tuner 1 and
the optional secondary Tuner 2 Module, if installed. Once
the desired tuner is selected, the Front Panel Controls in-
cluding Station Selection and Preset Assignment may be
performed. The Number 1 LED above the TUNER Push-
button will light, indicating when Tuner 1 has been se-
lected and the Number 2 LED above the TUNER Push-but-
ton will light when Tuner 2 Module is selected.
Reset of Microprocessor
In the event that the controls of the MR85 stop functioning,
there is a built-in user reset function. Press the POWER
switch to the OFF position and wait for two minutes. Then
press the POWER switch to ON; the Red LED above the
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STANDBY/ON Push-button, lights to indicate the MR85 is
in Standby Mode. To turn ON the MR85, press the
STANDBY/ON Push-button.
Note: The above condition is usually caused by either
interruptions or changes in AC voltage.
Figure 5
through 5 until a total of 9 AM and 9 FM Station Pre-
sets have been assigned. Each time you assign an addi-
tional Preset Number, the Front Panel Display will in-
dicate the number of the next available preset.
Note: If all 9 presets are assigned and you press ENTER, the
display will indicate the station selected for preset
number 1.
7. To verify the Station Preset(s) you have just entered ro-
tate the PRESET Knob clockwise or counterclockwise
to cycle through and confirm your preset assignments.
How to Assign Preset Stations
The MR85 AM/FM Tuner allows for presetting your favor-
ite radio stations into memory. It will also remember any
desired audio modes of operation such as Stereo/Mono and
Spatial Enhancement for each station separately. To enter
Presets and Audio Modes follow the below steps:
Note: The MR85 Tuner 1 and the optional secondary Tuner 2
Module each can store up to 9 AM and 9 FM stations.
1. Select the AM or FM broadcast band.
2. Tune to the desired radio station with either the Front
Panel TUNING Knob or the SEEK p (Up) and q
(Down) Push-button(s).
How To Clear an Assigned Station Preset
1. Press and release the ENTER Push-button; the LED
above the ENTER Push-button will light.
2. Rotate the PRESET Knob clockwise or counterclock-
wise to select the desired Station Preset you wish to
clear.
3. Press and Hold the ENTER Push-button for approxi-
mately 3 seconds until the Front Panel Display indi-
cates the word CLEARED. Refer to figure 6.
3. Optionally, select the Mono and/or Spatial Enhance-
ment Modes of Operation for that station.
Note: The Spatial Enhancement Mode is only applicable to
the Tuner 1. All AM Radio Stations are automatically
received in Mono.
4. Momentarily press and release the Front Panel ENTER
push-button. The LED above the ENTER push-button
will light and the Front Panel Display will indicate 1
AVAILABLE, which is the first of 9 Preset Numbers
that can be assigned. Refer to figure 4.
Note: Presets are automatically assigned in order from 1 to 9.
5. Press and release the front panel ENTER push-button a
Figure 6
Note: If you wish to replace an already assigned Station
Preset with another radio station, it is not necessary to
clear the Preset first, just enter in the new station for
that Preset. The new station will automatically replace
the previously assigned station.
4. To clear any additional Station Presets perform steps 1
through 3 again.
Figure 4
second time to store the Preset into memory, the LED
above the ENTER push-button will turn off and that
station Preset Selection will be assigned Preset Num-
ber 1. The assigned Preset Number will appear on the
Front Panel Display to the right of the Station Fre-
quency whenever it is selected. Refer to figure 5.
6. Assign additional station Presets by performing steps 1
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How to Assign Preset Stations and Custom Names
How to Assign Custom Names
The Front Panel Alphanumeric Display of the MR85 to-
gether with the built in memory, allows for Custom Nam-
ing of each Station Preset. Instead of the Front Panel just
indicating the frequency of the received radio station, it
could indicate such things as type of music played on that
station. The assignable characters include the alphabet,
numbers, and symbols. To enter Custom Presets Names
follow the below steps:
6. Rotate the PRESET Knob clockwise again until the
“A” appears to the right of the “JA”.
7. Rotate the TUNING Knob clockwise to scroll through
the alphabet until the character “Z” appears. Refer to
figure 10.
Note: In the below example, we will Custom Name an already
assigned FM Station Preset Number 1 which has a
frequency of 99.10MHz and rename it JAZZ 7. The
Custom Naming of a Station is applicable for both
Tuner 1 and the optional secondary Tuner 2 Module.
Figure 10
8. Rotate the PRESET Knob clockwise again until the
“A” appears to the right of the “JAZ”.
9. Repeat step 7 and refer to figure 11.
1. Momentarily press and release the Front Panel ENTER
push-button. The LED above the ENTER push-button
will light.
2. Select Station Preset Number 1, by rotating the PRE-
SET Knob clockwise or counterclockwise.
3. Push the DISPLAY Push-button and the Front Panel
Display of the Station Frequency (default) will be re-
placed by “1”, a blank space, and then a flashing “A”.
Refer to figure 7.
Note: The number 1 is the assigned Preset Number followed
by the first of eight possible characters of the new
Assigned Preset Name.
Figure 11
10. Rotate the PRESET Knob clockwise again until the
“A” appears to the right of the “JAZZ”.
11. Rotate the TUNING Knob clockwise to scroll through
the alphabet until no character appears.
12. Rotate the PRESET Knob clockwise again until the
“A” appears to the right of the “JAZZ ”.
13. Rotate the TUNING Knob clockwise to scroll through
the alphabet and numbers until the “7” digit appears.
Refer to figure 12.
Figure 7
4. Rotate the TUNING Knob clockwise to scroll through
the alphabet until the character “J” appears. Refer to
figure 8.
Figure 12
14. Press and release the front panel ENTER push-button
a second time to store the newly assigned Preset Name
into memory; the LED above the ENTER push-button
will turn Off and the assigned Preset Name will appear
on the Front Panel Display.
Note: If a Preset has been Custom Named, it is possible to
restore the default Station Frequency Display if desired.
Press the ENTER Push-button once, then press and hold
the DISPLAY Push-button for 3 seconds.
Figure 8
5. Rotate the PRESET Knob clockwise until the “A” ap-
pears to the right of the “J”. Refer to figure 9.
Figure 9
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Preset Station Lists
Tuner 1 Preset Stations
Optional Tuner 2 Module Preset Stations
16
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Information about the Optional TM1 Tuner Module
Cable for connection of the RAA1
to the MR85 AM Antenna 2 Jack
Hook-up cables for the McIntosh
TM1 AM/FM Tuner Module
McIntosh RAA1 Remote
AM Antenna
High Performance McIntosh
AM/FM Tuner Module
Benefits of Adding the Second McIntosh AM/FM TM1 Tuner Module
l Adds the functionality of a second McIntosh Quality Tuner to your MR85 for
a modest additional investment.
l Listen to one Radio Station while recording another.
l Add Multiroom enjoyment, listen to two different Radio Stations in different
rooms of your home simultaneously.
l Your McIntosh Dealer can install the Second TM1 Tuner Module into your
MR85 for you at any time, usually while you wait.
17
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Specifications
FM Tuner Specifications
AM Tuner Specifications
Useable Sensitivity
Sensitivity
14dBF which is 1.4uV across 75 ohms
20uV External Antenna Input
50dB Quieting Sensitivity
Mono: 19dBF which is 2.4uV across 75 ohms
Stereo: 35dBF which is 15uV across 75 ohms
Signal To Noise Ratio
48dB at 30% modulation
58dB at 100% modulation
Signal To Noise Ratio
Mono: 75dB
Harmonic Distortion
0.5% maximum at 50% modulation
Stereo: 70dB
Frequency Response
Frequency Response
50Hz to 6kHz NRSC
Mono: + 0, - 1dB from 20 to 15,000Hz
Stereo: + 0, - 1dB from 20 to 15,000Hz
Adjacent Channel Selectivity
45dB minimum IHF
Harmonic Distortion
Mono: 0.3% at 100Hz
0.3% at 1,000Hz
Image Rejection
65dB minimum from 540 to 1600kHz
0.3% at 10,000Hz
IF Rejection
Stereo: 0.45% at 100Hz
0.45% at 1,000Hz
80dB minimum
0.65% at 10,000Hz
General Specifications
Intermodulation Distortion
Mono 0.25%
Stereo 0.45%
Rated Output
Fixed output: 1.2 Volts
Variable output: 0 - 1.2 Volts
Capture Ratio
1.2dB
Output Impedance
Less than 100 ohms
Alternate Channel Selectivity
75dB
Power Requirements
100 Volts, 50/60Hz at 20 watts
110 Volts, 50/60Hz at 20 watts
120 Volts, 50/60Hz at 20 watts
220 Volts, 50/60Hz at 20 watts
230 Volts, 50/60Hz at 20 watts
240 Volts, 50/60Hz at 20 watts
Spurious Response
100dB
Image Response
75dB
Note: Refer to the rear panel of the MR85 for the correct
voltage.
RF Intermodulation
65dB
Dimensions
Stereo Separation
45dB at 100Hz
45dB at 1,000Hz
35dB at 10,000Hz
17-1/2” (44.5cm) W, 5-3/8” (13.7cm) H, 17-1/2” (44.5cm)
D, (including clearance for connectors)
Weight
25.5 pounds (11.6 Kg) net, 43 pounds (19.5 Kg) in ship-
ping carton
SCA Rejection
65dB
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Packing Instructions
Packing Instructions
In the event it is necessary to repack the equipment for
shipment, the equipment must be packed exactly as shown
below. It is very important that the four plastic feet are at-
tached to the bottom of the equipment. This will ensure the
proper equipment location on the bottom pad. Failure to do
this will result in shipping damage.
Quantity Part Number
Description
Shipping carton only
End Cap
End Cap
Corrugated Wrap
1
2
2
1
034125
033837
034126
034044
Use the original shipping carton and interior parts only
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 Repair Department of McIntosh
Laboratory. Please see the Parts List for the correct part
numbers.
1
1
1
1
033836
033725
034008
034037
Inside carton only
Top Pad
Bottom pad
Inner carton pad
4
4
4
017218
100159
104083
Plastic foot
#10-32 x 3/4” Machine screw
#10 x 7/16” Flat washer
1
049259
Shipping carton complete with
all the above parts
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McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, NY 13903
McIntosh Part No. 040698
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