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 C 31V?

Frequency Characteristic:
20 Hz ~ 20 kHz + 0 -0.5 dB
Maximum Power Output:
Main/Tape : 8 V (20 Hz to 20 kHz)
Total Harmonic Distortion:
0.007% maximum (1.5 V rated output, 20 Hz to 20 kHz)
Input Sensitivity:
Phono: 2 mv, 1.5 v rated output (0.66 mv, IHF) Line-Level: 200 mv, 1.5 v Rated Output (66 mv, IHF)
Input Impedance:
Phono: 47k Ω (65 pF) Line-Level: 22k Ω
Maximum Input Voltage:
Phono: 90mV Line-Level: 10V
Signal to Noise Ratio (A Weighted):
Phono: 90 dB or less, at 10 mV input (84 dB, IHF) Line-Level: 98 dB or less at rated output (86 dB, IHF)
Phono → Tape: 40 dB Phono → Main: 62 dB Line-Level → Tape: 0 dB Line-Level → Main: 17.5 dB
EQ Control:
+12 db to -12dB continuously variable (center frequency : 30, 150, 500, 1.5k, 5 points of 10 khz)
100 VAC, 50Hz/60Hz
Power Consumption:
Body: Width 406x Height 138x Depth 330 mm (Including Panlock) Front Panel Knob: Depth 32 mm Weight: 7.5kg

What else to know about the McIntosh C 31V?

The C31V was McIntosh's first preamplifier to include a remote control (the CR series). It is a very capable solid state design that includes 6 line-level inputs, 2 tape monitor loops, 2 effect loops and 2 low-level phono stage inputs to accommodate any number of audio and video sources. From the beloved HiFiReview: "Instead of tone controls, the C31V is equipped with a five-band equalizer. A built-in headphone amplifier feeds a front-panel headphone jack, and all controls are effective when listening to headphones. The C31V employs electronically regulated power supplies. Rear-panel jacks provide output and input facilities for signal-processing equipment, and such signal processors can be used independently to modify a tape recording or the program that you are listening to. The C31V can be equipped with various useful options that extend its versatility. For example, by adding McIntosh's SCR-3 speaker control relay, you can control two sets of loudspeakers from the front panel of the C31V and switch two husky amplifiers on and off through 20-ampere power relays in the accessory unit. Another option is the MVS-1 video selector referred to earlier, which links video signal selection to the audio selectors built into the C31V. Most of the front-panel switches and pushbuttons of the C31V are duplicated on a supplied wireless remote unit. Remote control can be extended to two additional listening areas by installing McIntosh remote sensors that are easily connected using RG-59/U coaxial cable. Even more widespread remote operation is possible by adding McIntosh's accessory Area Controller, which allows remote control in up to six listening areas, with independent volume adjustment and source selection for each."

Brief 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.