The McIntosh MR74 is one of those tuners that makes FM radio feel like a genuine event — composed, authoritative, and generously analog in a way that reminds you why broadcast audio had real devotees. It pulls stations with an ease that belies its age, delivering a presentation that has warmth and body in the mids without sacrificing the airy transparency that makes a good tuner so pleasurable to just leave on. The illuminated teal-and-gold faceplate glows with quiet confidence in the dark, while the 6HU6 multipath eye tube dances its slow shadow dance. The same tuner section McIntosh used in the MX113 preamplifier — which tells you exactly how serious they were about it.
Production
1972-1982
Condition
9/10
Serial No.
AC1023
Orig. MSRP
$849
Restoration
- LED bulb upgrade
- Cleaned and lubricated all controls
- Functions above factor spec
- Detailed
Factory Specs
TUNING RANGE
88 to 108 MHz
ANTENNA INPUTS
300 Ω balanced; 75 Ω unbalanced
INTERMEDIATE FREQUENCY (IF)
10.7 MHz
SENSITIVITY
2.5 µV (at 100% modulation, ±75 kHz deviation, for 3% total noise + harmonic distortion)
SIGNAL-TO-NOISE RATIO
70 dB below 100% modulation
HARMONIC DISTORTION
Mono: 0.3%; Stereo: 0.5% (at 100% modulation, ±75 kHz deviation)
FREQUENCY RESPONSE
±1 dB, 20 Hz to 15,000 Hz (75 µsec de-emphasis)
CAPTURE RATIO
1.5 dB minimum
SELECTIVITY — NORMAL MODE
Adjacent Channel: 6 dB; Alternate Channel: 68 dB
SELECTIVITY — NARROW MODE
Adjacent Channel: 15 dB; Alternate Channel: 88 dB
SPURIOUS REJECTION
90 dB
IMAGE REJECTION
95 dB (88–108 MHz, IHF)
MUTING
50 dB noise reduction (LOCAL position); Threshold: DISTANT 3 µV, LOCAL 10 µV
SCA FILTER
50 dB below 67 kHz; 275 dB/octave slope
STEREO SEPARATION
35 dB at 1,000 Hz
STEREO FILTER NOISE REDUCTION
Position 1: 10 dB; Position 2: 20 dB
DRIFT
25,000 Hz (first 2 min); 5,000 Hz at 25°C in 24 hrs thereafter
SENSITIVITY
75 µV (external antenna)
SIGNAL-TO-NOISE RATIO
55 dB at 100% modulation; 45 dB minimum
HARMONIC DISTORTION
1% at 30% modulation
SELECTIVITY (ADJACENT CHANNEL)
Normal: 35 dB; Narrow: 45 dB
IMAGE REJECTION
65 dB (540–1,600 kHz)
FREQUENCY RESPONSE
Normal: −6 dB at 3,500 Hz; Narrow: −6 dB at 2,100 Hz
AUDIO OUTPUT
Variable: 2.5V into 47 kΩ; Fixed: 2.5V into 47 kΩ (also 1.0V into 600 Ω)
POWER REQUIREMENTS
120V AC, 50/60 Hz, 30 watts
SEMICONDUCTOR COMPLEMENT
5 FETs (dual-gate MOSFETs in FM front end), 17 transistors, 2 ICs, 30 diodes, 1 indicator tube (6HU6 electron ray tube as multipath indicator)
DIMENSIONS
16 × 5-7/16 × 13 in. (W × H × D)
WEIGHT
25 lbs. (net); 37 lbs. (shipping)
FINISH
Front panel: anodized gold and black with special gold/teal nomenclature illumination; Chassis: chrome and black
MOUNTING
McIntosh PANLOC professional modular rack mounting system
Documentation
McIntosh MR74 Owner's Manual
McIntosh MR74 Service Manual
McIntosh MR74 Schematics
The History of McIntosh
Founded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment...
[ Read More ]
Packing
Prepare to be impressed. We have arguably the best packing process around. We use our InstaPak machine and white open cell foam to build a custom enclosure for your piece that ensures that it's stable and secure. If it is particularly fragile or heavy, we typically opt for private courier delivery. Depending on where you are in the country, that may cost a bit extra.
Shipping
This piece ships to the contiguous United States for a flat rate of $200, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
Stock No.
9676275089629
