McIntosh MR77 Analog Vintage Tuner in Walnut Cabinet

Description

WHO WE ARE
SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of high end audio equipment. We only buy equipment that we admire and are passionate about. No mid-fi, no gimmicks, no junk.
Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. If it does not meet or exceed the original manufactures specifications, it will not be sold. We are very selective about the equipment we purchase, focusing on mostly analog, high-build quality, American, and European built units.
Through our sister company, which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Project, and Sony ES, we have access to OEM parts, service, and support.
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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" tube signal strength indicator. It's an actual tube-based light emitting component that provides two horizontal light indicators reflecting the signal strength. Super cool!
Condition is very good with only the slightest signs of use. The cabinet is very presentable for its age and looks amazing when matched with this tuner.
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.
Includes the tuner, and the wood cabinet as shown in our photos.
Technical Specifications:
SENSITIVITY:
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
HARMONIC DISTORTION:
0.2% mono or stereo at 100% modulation, 20 Hz to 15,000 Hz. Typically, 0.05% at 1,000Hz
DRIFT:
25,000 Hz in first two minutes; thereafter 5,000 Hz at 25°C in 24 hours
FREQUENCY RESPONSE:
±1 dB 20 Hz to 15,000 Hz with standard de-emphasis, (75μS) and 19,000 Hz pilot filter
CAPTURE RATIO:
0.25 dB detector only; 2.5 dB complete tuner
SELECTIVITY:
Adjacent channel 6 dB IHF, carrier 47 dB down; Alternate channel 50 dB IHF, carrier 90 dB down
SPURIOUS REJECTION:
100 dB IHF
IMAGE REJECTION:
100 dB; 88 to 108 MHz (IHF)
MAXIMUM SIGNAL INPUT:
12 volts across 300 ohms antenna terminals will not increase harmonic or intermodulation distortion
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%
AUDIO HUM:
75 dB down from 100% modulation
MUTING:
70 dB noise reduction between stations
MUTING THRESHOLD:
Position 1; 5 μ V ; Position 2, 20μV
SCA FILTER:
50 dB down from 67 kHz to 74 kHz; 275 dB per octave slope
STEREO SEPARATION:
40 dB at 1,000 Hz
STEREO FILTER:
10 dB noise reduction in position 1
20 dB noise reduction in position 2
ANTENNA INPUTS:
300 ohms balanced; 75 ohms un- balanced
AUDIO OUTPUT:
2.5 volts into 47,000 ohms; 1 volt into 600 ohms from fixed output
POWER REQUIREMENT:
120 volts, 50/60 Hz. 35 watts
IF SYSTEM:
8-Pole Rimo Filter, 2 IC's, 1 J-Fet, and push-pull overlay power transistor stage driving a linear phase bridge discriminator
STEREO INDICATOR:
Front panel stereo light activated by 19,000 Hz only
AUTOMATIC MONO-STEREO SWITCH:
Mclntosh developed; all electronic automatic mono-stereo switching circuit
SEMICONDUCTOR COMPLEMENT:
21 Transistors, 24 Diodes, 4 Integrated Circuits, 1 Indicator Tube
SIZE:
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
FINISH:
Front panel is anodized gold and black with special Mclntosh gold/teal panel nomenclature illumination. Chassis is chrome and black
MOUNTING:
Exclusive Mclntosh developed professional PANLOC
WEIGHT:
27 pounds (12.25 kg) net, 39 pounds (17.69 kg) in shipping carton
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PURCHASING FROM SKYFI:
This item will be professionally packaged and insured for safe transit to your home unless you opt for local pickup from our shop. Please note that all local pickup items are only wrapped with industrial strength clear cling stretch wrap if the original manufacturer packaging is unavailable.
Local pickup is available in Glen Rock, NJ, just a half hour drive from Midtown Manhattan, with convenient parking near our building.
If we don’t have the original manufacture’s packaging, we use heavy duty double-ply corrugated boxes with custom made to your item Instapak expanding foam custom inserts. In many cases this has proven to be better than the original packaging! We also use high quality fiber reinforced tape to seal our packages. Lightweight items will be bubble wrapped and shipped in a high-quality box.
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PURCHASING GUIDELINES:
We do not accept or review any offers that do not go through the official eBay system. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. Please don’t message, email, or text any offers.
TRADE IN POLICY:
We accept trade-ins of equal or lesser value under certain conditions. Please visit our website to submit your gear for full consideration. We will only consider high-end equipment from mainstream manufacturers such as McIntosh, Mark Levinson, Audio Research, Krell, etc. and will typically pass on displays, projectors, receivers, dated surround processors, and mid-fi equipment of any type. We will offer a fair value for your equipment, but keep in mind we’re running a business and will need to be able to resell the equipment at a profit after investing a great deal of time and resources in testing, certifying, repairing, cleaning, and packaging the incoming equipment. If you’re looking for top dollar, we suggest selling direct on your own.
SELL US YOUR GEAR (Working or Broken):
We’ll also purchase your used or broken gear and arrange pickup if you’re in our local market. Simply visit our website to submit your gear for full consideration.
SCHEDULING AN APPOINTMENT:
We are currently operating from our shop inside our dedicated building in Glen Rock, NJ. You’re welcome to make an appointment if there’s a piece of equipment you’d like to see in operation before or after purchase. We have several well-equipped and dedicated listening areas, plus a dedicated listening studio with tons of equipment of all makes and models. We’re not a store, so please don’t make an appointment if you’re just curious as to how a speaker or piece of equipment sounds. In essence - no tire kickers please.
You can message us here on eBay with any questions or to schedule an appointment. We can also arrange to install, calibrate, and tune your newly purchased gear in your listening room if you’re local to our area. This is super useful when purchasing large speakers or heavy amplifiers. It’s also great for ensuring your new turntable is setup correctly in its final resting place.
eBay v1.2
Item
Included
Original Box
No
Manual
Online
Remote
N/A
Cables
Yes - Power
Physical Condition
8
Working Condition
10