McIntosh MR80, Owner'S Manual

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Performance Limits
Performance Guarantee
Performance limits are the maximum deviation from
perfection permitted for a Mclntosh instrument. We
promise you that the MR 80, at the time of its pur-
chase, is capable of performance at or exceeding
these limits or you get your money back. Mclntosh is
the only manufacturer that makes this guarantee.
Tuning:
88 to 108MHz
Antenna Inputs:
One 300 W balanced and two 75 W unbalanced.
Intermediate Frequency:
10.7MHz
Sensitivity:
9.3dBf (1.6 m V) for 35dB of quieting
14.7dBf (3
m
V) for 50dB of quieting
13.2dBf (2.5
m
V) for 3% total noise and harmonic dis-
tortion
Signal to Noise Ratio:
75dB below 100% modulation
Harmonic Distortion:
0.2% 20Hz to 15kHz, mono or stereo
Typically, 0.08% at 1000Hz
Intermodulation Distortion:
0.15% mono or stereo for any combination of fre-
quencies from 20Hz to 15,000Hz with peak modula-
tion equal to 100% or less. Typically 0.1%
Frequency Response:
Mono and Stereo ± 1dB 20Hz to 15kHz with 75, 50
or 25 m S deemphasis
Capture Ratio:
1.5dB
Selectivity:
Adjacent channel
Alternate channel
Spurious Rejection:
110dB
Narrow
8dB
90dB
Super Narrow
60dB
110dB
Tuner IM (RF):
-23dBm for 2 signals 1MHz apart
Tuner Intercept Point:
-10dBm 75
W
Image Rejection:
90dB
Maximum Signal Input:
8 volts across 75
W
(1W) antenna terminal will not
increase harmonic or intermodulation distortion.
Audio Hum:
75 dB down from 100% modulation
Muting:
70dB noise reduction between stations
Muting Threshold:
2
m
V to 1000
m
V
SCA Rejection:
60dB minimum
Stereo Separation:
50dB to 1000Hz
Stereo Filter:
10dB noise reduction
Audio Output:
Variable:
2.5V into 47k
Fixed:
1V into 47k
General Information
Power Requirements:
120 volts 50/60Hz. 25 watts
Semiconductor Complement:
57 Transistors
68 Integrated Circuits
81 Diodes
4 LED Displays
18 LED's
7 Neon Lamps
Mechanical Information
SIZE: Front panel measures 16 inches wide (40.6 cm)
by 5 7/16 inches high (13.8 cm). Chassis measures
14 3/4 inches wide (37.5 cm) by 4 13/16 inches high
(12.2 cm) by 13 inches deep (33 cm), including con-
nectors. Knob clearance required is 1 1/4 inches (3.2
cm) in front of mounting panel.
FINISH: Front panel is anodized gold and black with
special gold/teal n o m e n c l a t u r e illumination.
Chassis is black.
MOUNTING: Exclusive Mclntosh developed profes-
sional PANLOC
WEIGHT: 27 pounds (12.2 kg) net, 39 pounds (17.7 kg)
in shipping carton
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