
McIntosh is one of the most dependable brand names when it comes to high-end audio systems. For years the brand has been recognized by audiophiles throughout the world as equipment that delivers clear and consistent quality in music. McIntosh is probably best known for its amplifiers and preamps, but the company produces many other components and parts for stereo and home theatre.
What are the specs for the McIntosh MA 2275?
- Power output:
- 75 watts per channel into 8Ω (stereo)
- Frequency response:
- 10Hz to 50kHz
- Total harmonic distortion:
- 0.5%
- Damping factor:
- 18
- Input sensitivity:
- 4.4mV (MM), 450mV (line)
- Signal to noise ratio:
- 89dB (MM), 97dB (line)
- Valve complement:
- 4 x 12AX7A, 2 x 12AT7, 4 x KT88
- Dimensions:
- 17.7 x 10.1 x 18.7 inches
- Weight:
- 77 lbs
What else to know about the McIntosh MA 2275?
"Here it is, right up front: Mac's new MA2275 tube integrated amp is one terrific piece of audio gear. My modified Quads sound better using the MA2275 than with any other solid-state or tube amplification that I have ever used, including my Audio Research preamp and amp which have been my reference components over the past three years. At $6,100, the MA2275 isn't cheap but it undercuts the Audio Research units by $4,000 making this Big Mac, at least relatively speaking, a super bargain. Description and Operation Mac amplifiers tend to be rather large and heavy; the MA2275 is no exception. Although rated at only 75 watts per channel, it has the substantial weight of 77 pounds. You will need to add another 33 pounds for its shipping cartons. And its dimensions, 10-1/4 inches high, 17-3/4 inches wide, and 18-3/4 inches deep, make it too big to slide into most equipment shelves. Years ago Mac discontinued point-to-point wiring and now uses heavy-duty circuit boards through out. A pair of 12AX7As are used in the high-level circuitry and another pair of 12AX7As in the magnetic phono stage. The power amp employs two 12AT7s and four KT88s, although it can also use 6550s. The amp is self-biasing and McIntosh sees no potential problem when or if an owner replaces the original output tubes when they eventually wear out with a non-Mac tube product. Incidentally, a Mac rep suggested a rather long life expectancy for the KT 88s of over 4000 hours, about double the usual estimate. The MA2275's front panel consists of Mac's traditional black glass but it is now illuminated from within by fiber optics rather than small bulbs. The upper corners of the panel present four-inch "blue-eyed" 75-watt power meters, one for each channel. Below the meters is a row of six rotary knobs which provide for the selection of six input sources including magnetic phono, bass and treble tone controls, each giving a boost or cut of up to 12 dB and an option to completely remove them from the circuit, a three-click meter knob that allows for a choice of "lights off", "watts", and "hold," balance, and a volume control. At the bottom of the front panel are pushbuttons for "Record/Monitor", tone control "Bypass", "Mono", "Mute", "Standby", power, and a headphone jack. If you like to listen in the dark, the supplied remote lights up. It is designed to control a McIntosh tuner and CD player as well as a Mac preamp but with the MA2275 only the standby on/off, input selection, volume, and mute buttons are operational. Too bad, I think, that the balance function wasn't included. This is an adjustment that really is best done from one's listening position. The rear of the MA2275 has a standard three-wire a.c. power input receptacle, five pairs of RCA input jacks and a sixth set of inputs that accept either XLR-type balanced or RCA interconnects. There are also line level RCA output jacks for making tape recordings and a pair of preamp output jacks. Jumpers connect a second set of preamp out jacks to amplifier in jacks. When the jumpers are removed, it is possible to use the preamplifier and amplifier sections as separate components. Sitting on a shelf above these jacks five-way gold plated binding posts offer 2, 4, and 8-ohm speaker connections. For owners of other Mac gear, data and power control ports round out the rear panel. Because of its size, I had to place the MA2275 on top of an equipment stand, which was just as well since the tubes and transformers do produce some heat. With no shelf above the unit, the tube cage and transformers grew warm after several hours of use but never so hot that I couldn't rest my fingers on them. With its unconventional illuminated black glass front panel, bright blue power meters, mirror- polished steel chassis, large transformers and glowing output tubes, the MA2275 is striking in its appearance. It is hard to imagine that anyone who buys a MA2275 would not take great pride in ownership, so having the amp sit out in the open, for all to see, might not be a bad thing at all." - HiFi ReviewBrief History of McIntosh
Long mapped-to Binghamton New York – the current headquarters and manufacturing center for McIntosh Labs – not many people know the brand was originally launched outside of the Nation’s Capital in Silver Spring Maryland, in 1949. In 1956, the brand built their original facility in New York, according to the official brand website.
Other McIntosh Products We Often Buy
Typically, StereoBuyers purchases mostly used amplifiers, especially the vintage amps and high-end McIntosh models such as the MC202 or MC252, and the C220 preamp, for example. We have also purchased many pre-owned tuners from McIntosh over the recent years, including the MR67 and MR78 models, for example.
StereoBuyers has purchased tens of thousands worth McIntosh brand equipment since 2014, with individual buys ranging from $100 to well over $50,000. If you are moving, ready to upgrade, or have McIntosh equipment you do not or will not be using, why not contact us today to find out if it is worth good money?
If you are interested in selling your used McIntosh equipment to us in the greater NYC area or Colorado, please click here to fill out a Free Quote Form and we will get back to you. If we agree on terms, we come to meet you where you want, and pay cash.
The following images show actual McIntosh equipment purchased by StereoBuyers.
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McIntosh C 31V
Preamplifier - av control center -
McIntosh MA 7000
Integrated amplifier -
McIntosh MAC 1700
Receiver -
McIntosh MC 162
Power amplifier -
McIntosh MC 2102
Power amplifier -
McIntosh MC 2205
Power amplifier -
McIntosh MC 2250
Power amplifier -
McIntosh MC 2600
Power amplifier -
McIntosh MC 7150
Power amplifier -
McIntosh MCD 301
Sacd / cd player -
McIntosh MHP 1000
Headphones -
McIntosh C 35
Preamplifier -
McIntosh ML 1C
Speakers -
McIntosh MLD 7020
Laser disc player -
McIntosh MQ 101
Equalizer -
McIntosh MR 500
Tuner -
McIntosh MR 73
Tuner -
McIntosh MR 74
Tuner -
McIntosh MR 77
Tuner -
McIntosh MR 88
Tuner -
McIntosh MX 110
Tuner preamplifier -
McIntosh MX 112
Tuner preamplifier -
McIntosh C 39
Preamplifier -
McIntosh MX 130
Tuner preamplifier -
McIntosh MX 136
Audio / video preamplifier -
McIntosh C 8
Preamplifier -
McIntosh C 2500
Preamplifier -
McIntosh C 49
Preamplifier -
McIntosh CR 16
Preamplifier -
McIntosh MA 6400
Integrated amplifier -
McIntosh MAC 4100
Receiver -
McIntosh MC1.2KW
Power amplifier -
McIntosh MC 205
Power amplifier -
McIntosh CR 7
Remote control system / preamplifier -
McIntosh MC 206
Power amplifier -
McIntosh MC 225
Power amplifier -
McIntosh MCD 205
Cd player -
McIntosh MPC 500
Power controller -
McIntosh MVP 861
Universal disc player -
McIntosh MX 120
Preamplifier -
McIntosh MX 122
Preamplifier -
McIntosh XLS 360
Speakers -
McIntosh CR 8
Remote area controller -
McIntosh MX 135
Preamplifier -
McIntosh MA 5300
Integrated amplifier -
McIntosh MA 6100
Integrated amplifier -
McIntosh MA 6900
Integrated amplifier -
McIntosh C 1000p/1000C
Preamplifier -
McIntosh C 11
Preamplifier -
McIntosh C 20
Preamplifier -
McIntosh C 22
Preamplifier -
McIntosh C 2200
Preamplifier -
McIntosh C 26
Preamplifier -
McIntosh C 2600
Preamplifier -
McIntosh C 28
Preamplifier -
McIntosh C 32
Preamplifier -
McIntosh C 33
Preamplifier -
McIntosh C 38
Preamplifier -
McIntosh C 42
Preamplifier -
McIntosh C 45
Preamplifier -
McIntosh C 46
Preamplifier -
McIntosh C 47
Preamplifier -
McIntosh C 48
Preamplifier -
McIntosh C 500
Preamplifier -
McIntosh CR 12
Preamplifier -
McIntosh D 100
Preamplifier -
McIntosh MA 2275
Integrated amplifier -
McIntosh MA 230
Integrated amplifier -
McIntosh MA 6200
Integrated amplifier -
McIntosh MA 6300
Integrated amplifier -
McIntosh MA 6500
Integrated amplifier -
McIntosh MA 6600
Integrated amplifier -
McIntosh MA 8000
Integrated amplifier -
McIntosh MAC 4300V
Receiver -
McIntosh MAC 6700
Receiver -
McIntosh MAC 7200
Receiver -
McIntosh MC 75
Amplifier -
McIntosh MC 1201
Amplifier -
McIntosh MC 122
Amplifier -
McIntosh MC 152
Amplifier -
McIntosh MC 2000
Amplifier -
McIntosh MC 2002
Amplifier -
McIntosh MC 202
Amplifier -
McIntosh MC 2100
Amplifier -
McIntosh MC 2105
Amplifier -
McIntosh MC 2120
Amplifier -
McIntosh MC 2125
Amplifier -
McIntosh MC 2200
Amplifier -
McIntosh MC 2255
Amplifier -
McIntosh MC 2300
Amplifier -
McIntosh MC 2301
Amplifier -
McIntosh MC 240
Amplifier -
McIntosh MC 250
Amplifier -
McIntosh MC 2500
Amplifier -
McIntosh MC 2505
Amplifier -
McIntosh MC 252
Amplifier -
McIntosh MC 275
Amplifier -
McIntosh MC 302
Amplifier -
McIntosh MC 352
Amplifier -
McIntosh MC 402
Amplifier -
McIntosh MC 452
Amplifier -
McIntosh MC 50
Amplifier -
McIntosh MC 501
Amplifier -
McIntosh MC 502
Amplifier -
McIntosh MC 60
Amplifier -
McIntosh MC 7106
Amplifier -
McIntosh MC 7108
Amplifier -
McIntosh MC 7200
Amplifier -
McIntosh MC 7270
Amplifier -
McIntosh MC 7300
Amplifier -
McIntosh MC 754
Amplifier -
McIntosh MC 8207
Amplifier -
McIntosh MD 1100
Cd player -
McIntosh MD 7005
Cd player -
McIntosh MCD 7007
Cd player -
McIntosh C34V
Audio / video control center -
McIntosh C712
System control center preamplifier -
McIntosh MA 5100
Integrated amplifier -
McIntosh MA 7900
Integrated amplifier -
McIntosh MAC 1700
Stereo receiver -
McIntosh MC 2205
Power amplifier -
McIntosh MCC406M
Car audio -
McIntosh MCD 7009
Cd player -
McIntosh MHT 100
A/v system controller -
McIntosh ML 10C
Speakers -
McIntosh MPI-4
Maximum performance indicator -
McIntosh MX 121
A/v control center -
McIntosh MCT 500
Cd-transport -
McIntosh MCT 450
Cd player -
McIntosh MEN 220
Room collection -
McIntosh MHA 100
Headphone amplifier -
McIntosh MHA 150
Headphone amplifier -
McIntosh MHT 200
Surround sound processor -
McIntosh MI 3
Performance-scope -
McIntosh MR 65a
Tuner -
McIntosh MR 65b
Tuner -
McIntosh MR 67
Tuner -
McIntosh MR 7082
Tuner -
McIntosh MR 7083
Tuner -
McIntosh MR 71
Tuner -
McIntosh MR 78
Tuner -
McIntosh MR 80
Tuner -
McIntosh MR 85
Tuner -
McIntosh MT5
Turntable -
McIntosh MVP 851
Amplifier -
McIntosh MX 110Z
Tuner-preamplifier -
McIntosh MX 113
Tuner-preamplifier -
McIntosh MX 132
Av-control-center -
McIntosh RS 200
Wireless-speaker