McIntosh MR77 Vintage Tuner
If you haven't heard a vintage FM tuner recently, you really owe it to yourself to give one a listen.
The right model matched with the proper antenna will make some of the warmest and most natural sounding music you've (ever) heard. Especially through an all analog piece like this McIntosh MR77.
We are very lucky in our area to have some of the best sounding stations in the world, and you better believe we take full advantage. If you come to our shop you're likely to hear our local Jazz station WBGO playing from one of our vintage tuners just like this one.
Sitting just below the renowned McIntosh MR78, this MR77 model provides 99% of the sound quality with a just a few removed features, which most users would never ever use or miss.
My favorite feature (that's actually not found in the MR78!) is the "magic eye" indicator. It's an actual tube-based light emitting component with two lines that fluctuate indicating multipath reception. Super cool!
Condition is very good with only the slightest signs of use.
Thoroughly tested in our lab utilizing our Sencore SG80 FM Generator, which allows us to generate a reference FM signal of any frequency and amplitude, and then measure the results of the MR77 tuner output on our Sencore PR81 or oscilloscope. This unit passed with flying colors and produced a natural and warm sounding output.
• Light blemishes on metal surfaces and covers
• Glass has a few defects and some of the lettering is worn
Click below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.
Kimber Kable - RCA Interconnects - Better
The SkyFi Testing Process for Tuners:
We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale signs of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage.
Then the tuner is thoroughly tested in our lab utilizing our professional Sencore SG80 FM Generator, which allows us to generate a reference FM signal of any frequency and amplitude, and then measure the resulting tuner output on our Sencore PR81 or oscilloscope.
Final testing involves pushing actual music from the tuner. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some tuners will then move into our listening room where they are tested with our in-house reference speakers of choice.
Click here for a PDF copy of the MR77 Owner's Manual
2μV for 35 dB of quieting; 2.5μA at 100% modulation (±75 kHz deviation) for 3% total noise and harmonic distortion
SIGNAL TO NOISE RATIO:
75 dB below 100% modulation
0.2% mono or stereo at 100% modulation, 20 Hz to 15,000 Hz. Typically, 0.05% at 1,000Hz
25,000 Hz in first two minutes; thereafter 5,000 Hz at 25°C in 24 hours
±1 dB 20 Hz to 15,000 Hz with standard de-emphasis, (75μS) and 19,000 Hz pilot filter
0.25 dB detector only; 2.5 dB complete tuner
Adjacent channel 6 dB IHF, carrier 47 dB down; Alternate channel 50 dB IHF, carrier 90 dB down
100 dB IHF
100 dB; 88 to 108 MHz (IHF)
MAXIMUM SIGNAL INPUT:
12 volts across 300 ohms antenna terminals will not increase harmonic or intermodulation distortion
0.2% mono or stereo for any combination of frequencies from 20 Hz to 15,000 Hz with peak modulation equal to 100% or less. Typically 0.1%
75 dB down from 100% modulation
70 dB noise reduction between stations
Position 1; 5 μ V ; Position 2, 20μV
50 dB down from 67 kHz to 74 kHz; 275 dB per octave slope
40 dB at 1,000 Hz
10 dB noise reduction in position 1
20 dB noise reduction in position 2
300 ohms balanced; 75 ohms un- balanced
2.5 volts into 47,000 ohms; 1 volt into 600 ohms from fixed output
120 volts, 50/60 Hz. 35 watts
8-Pole Rimo Filter, 2 IC's, 1 J-Fet, and push-pull overlay power transistor stage driving a linear phase bridge discriminator
Front panel stereo light activated by 19,000 Hz only
AUTOMATIC MONO-STEREO SWITCH:
Mclntosh developed; all electronic automatic mono-stereo switching circuit
21 Transistors, 24 Diodes, 4 Integrated Circuits, 1 Indicator Tube
Front panel measures 16 inches wide (40.64 cm) by 5-7/16 inches high (13.81 cm). Chassis measures 15 inches wide (38.1 cm) by 13 inches deep (33.02 cm), including PANLOC shelf and back panel connectors. Knob clearance required is 11⁄2 inches (3.81 cm) in front of mounting panel
Front panel is anodized gold and black with special Mclntosh gold/teal panel nomenclature illumination. Chassis is chrome and black
Exclusive Mclntosh developed professional PANLOC
27 pounds (12.25 kg) net, 39 pounds (17.69 kg) in shipping carton
Yes and Online
Yes - Power Only
7 / 10
10 / 10