McIntosh MR85 User manual

MR85
AM/FM Tuner
“rediscover the pleasures
of radio with
the MR85 tuner”
The MR85 is meticulously engineered as a broadcast-grade monitor
that reveals the upper limits of AM/FM performance. Manual tuning
is accomplished through a sophisticated optical encoder that is
actuated by a smooth-dialing” weighted flywheel. Other features
include permanent memory for all settings and selectable auto-mute
for local/distance tuning. An alpha-numeric fluorescent display
indicates band, station frequency, signal strength and station preset.
As an expansion option, an additional tuner module may be added by
a McIntosh dealer. This is perfect for multizone applications because
the MR85 becomes two great tuners that operate independently and
can be used simultaneously. All station presets for each tuner may be
labeled with a name containing as many as eight characters. A good
tuner is hard to find, even as a separate. A great tuner such as the
MR85 is truly rare, and will let you rediscover the pleasures of radio.
High-Performance AM/ M Broadcast Monitor
Expansion Options Adds Second
Internal Tuner for Zone B
Non-Volatile Memory for 9 M and
9 AM Presets (per tuner)
Custom Naming for Each Preset
Auto-Memory of Preferred Settings
for Each Preset
Permanent Memory of All Settings
Auto-mute for Distance Tuning
Remote Power Control In/Out
ixed and Variable Audio Outputs
McIntosh Spatial Sound Enhancement
High Sensitivity DMOS- ET R Amplifier
Phase Locked Loop M Multiplex Decoder
Gold-Plated Output Jacks

McIntosh Laboratory, Inc. 2 Chambers Street, Binghamton, New York 139 3-2699
Tel [phone] • US Toll-Free (8 ) 538-6576 • Fax: [phone]• www.mcintoshlabs.com
For the Consumer’s Protection: In order to ensure the highest level of customer satisfaction “new” McIntosh
products may only be purchased over-the-counter or delivered and installed by an Authorized McIntosh Dealer.
McIntosh products that are purchased over the Internet by phone or mail order are presumed to be “used” and
do not qualify for any McIntosh Warranty. McIntosh does not warrant in any way products that are purchased
from anyone who is not an Authorized Dealer or products that have had their serial number altered or defaced.
MR85
AM/FM Tuner
Dual-Tuner Operation
As an expansion option, a
McIntosh Dealer may add an
additional tuner module. This
is ideal for multizone systems,
because it creates two tuners
that can be used simultaneously.
Weighted lywheel
or Manual Tuning
An optically encoded
weighted flywheel for “dialing
in” stations, reminiscent of the
smooth-acting flywheel found
in classic McIntosh tuners.
Custom Naming
All station presets for each
tuner may be labeled with a
name containing as many as
8 characters. or example,
M preset 1 could be re-
named “JAZZ 1” or “WHRW.”
Spatializer Enhancement
This circuit can expand
the sound field for M stations
that have poor separation, or
it can provide a pseudo-stereo
effect for AM stations.
DMOS- ET R Amplifier
This circuit provides very
high sensitivity with
ultra-low distortion.
Linear Phase,
Piezoelectric If ilters
Never requiring adjustment,
these filters – together with the
associated I amplifier – provide
more than 120dB of gain and
selectivity greater than 90dB.
M TUNER SPECI ICATIONS
USEABLE SENSITIVITY
14dBf (1.4uV across 75 ohms)
50dB QUIETING SENSITIVITY
Mono: 19dBf
(2.4uV across 75 ohms)
Stereo: 35dBf
(15uV across 75 ohms)
SIGNAL-TO-NOISE RATIO
Mono: 75dB
Stereo: 70dB
REQUENCY RESPONSE
Mono: 20H to 15kH , +0/-1dB
Stereo: 20H to 15kH , +0/-1dB
HARMONIC DISTORTION
Mono: 0.3% at 100H ,
1kH and 10kH
Stereo: 0.45% at 100H and 1kH ;
0.65% at 10kH
INTERMODULATION DISTORTION
Mono: 0.25%
Stereo: 0.45%
CAPTURE RATIO
1.2dB
ALTERNATE CHANNEL SELECTIVITY
75dB
SPURIOUS RESPONSE
100dB
IMAGE RESPONSE
75dB
R INTERMODULATION
65dB
STEREO SEPARATION
45dB at 100H and 1kH
35dB at 10kH
SCA REJECTION
65dB
10.03.MR85.20k.JCP 35003700.RevA
AM TUNER SPECI ICATIONS
SENSITIVITY
20uV (external antenna input)
SIGNAL-TO-NOISE RATIO
48dB at 30% modulation
58dB at 100% modulation
REQUENCY RESPONSE
Mono: 20H to 15kH , +0/-1dB
Stereo: 20H to 15kH , +0/-1dB
HARMONIC DISTORTION
0.5% max at 50% modulation
REQUENCY RESPONSE
50H to 6kH NRSC
ADJACENT CHANNEL SELECTIVITY
45dB minimum IHF
IMAGE REJECTION
65dB min, 540 kH to 1600kH
I REJECTION
80dB minimum
GENERAL
RATED OUTPUT
1.2V Fixed
0-1.2V Variable
OUTPUT IMPEDANCE
Less than 100 ohms
POWER REQUIREMENTS
120V 50/60H , 20W
OVERALL DIMENSIONS (H X W X D)
5 3/8" (13.8 cm) x 17 1/2"
(44.5 cm) x 17 1/2" (44.5 cm)
WEIGHT
25.5 lbs. (11.6 kg) net
43 lbs. (19.5 kg) boxed