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Performance Features
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 compliment a McIntosh System of
incomparable performance and style.
••
••
• Special FM RF Amplifier
Double-Diffused Metal Oxide Field Effect Transistor
(DMOS-FET) RF amplifier increases sensitivity and Cross
Modulation rejection.
••
••
• External AM RF Amplifier and Antenna
The included RAA1 Remote AM Antenna contains an elec-
trostatically shielded AM RF Amplifier Stage and can be
located in a remote area away from sources of interference
assuring the best possible reception.
• •
• •
• Flywheel Manual Tuning and Automute
A newly designed, optically encoded weighted flywheel
system makes ‘dialing in’ stations a breeze. Reminiscent of
the dial-cord flywheel tuning method found in classic
McIntosh Tuners. The MR85 automatically mutes when
manually tuning between stations, yet provides the ability
to be switched off when searching for very weak stations.
• •
• •
• FM Stereo Auto Blend Circuitry and
Spatial Sound Enhancement
An automatic variable stereo separation control circuit is
used to reduce background noise when receiving weak ste-
reo stations. A sound Spatializer circuit can be selected for
Tuner 1 Enhancement. This circuit can expand the sound
field for FM stations with poor separation; it also provides
a pseudo-stereo effect for AM stations.
••
••
• Optional Second Tuner Module
The McIntosh TM1 Tuner Module may be added to the
MR85 by your Dealer and is the most economical way to
add a second tuner to a system. This is ideal for applica-
tions where two tuners may be used at the same time, such
as Multizone Systems or listening to one station while re-
cording another station.
••
••
• Preset Stations and Custom Preset Naming
Nine AM and nine FM station presets with custom naming
(any desired name may contain up to eight characters) for
each tuner module make it easy to listen to your favorite
stations. For example, FM Preset Number 3 (92.50MHz)
can be renamed “JAZZ 7”, or “WXYZ”. The station pre-
sets, custom naming and functions modes are retained in
Permanent Memory even when AC power is turned off.
••
••
• Alphanumeric Fluorescent Display
The Multifunction Front Panel Display indicates station
frequency, station preset number, custom naming, signal
strength, stereo and broadcast band. The display intensity is
fully adjustable.
• •
• •
• Adjustable Output Level and Remote Control
Capable
Both Tuner 1 and the optional Tuner 2 have Variable Out-
puts which can be used to match audio levels between vari-
ous sources. When used in conjunction with a McIntosh
Control Center or Multizone Controller, tuning functions
can be performed with a remote control.
Connector Information
RAA1 Connector
Connect the shield and two leads of a shielded 2 conductor
cable to the supplied 5 Pin Terminal Connector Plug. Refer
to the connection information on the top cover of the
RAA1.
5 PinTerminal Connector
1. N/C 4. Black Wire
2. N/C 5. Green Wire (Shield)
3. Red Wire
7 Pin DIN Connector
1. Red Wire 5. N/C
2. Black Wire 6. Jumper from Pin 7
3. N/C 7. Green Wire (Shield)
4. N/C and Jumper to Pin 6
Power Control Connectors
The MR85’s Power Control Output
provides a 5 volt signal. Use a 1/8
inch stereo mini phone plug to con-
nect to the Power Control Output on
other McIntosh Components.
Data Connectors
The MR85’s Data Port Output pro-
vides Remote Control Signals. Use
a 1/8 inch stereo mini phone plug
to connect to the Data Port Inputs
on McIntosh A/V Control Centers.
Red
Black
Green
Positive
N/C
Negative
Data Signal
N/C
Ground