McIntosh M275

An object of desire cherished by music lovers around the world, the MC275 was designed and engineered in 1961 by McIntosh co-founder Sidney Corderman and the McIntosh Engineering Team. Based upon the extraordinary Unity Coupled Circuit, the MC275 has a lush sound that presents a powerful and detailed soundstage. $5,190 rrp

 The MC275 develops 75 watts per channel into 2, 4 or 8 ohm loads, or 150 watts in bridged mono mode. Both balanced and single ended inputs are supported. The mirror polished stainless steel and black chassis with die cast nameplate is presented here just as it was in the original 1961 model. 

MC275 Tube Power Amplifier Specifications

POWER OUTPUT STEREO

Minimum sine wave continuous average power output per channel, both channels operating is: 75 watts into 4, 8 or 16 ohm load.

 POWER OUTPUT MONO (PARALLEL)

Minimum sine wave continuous average power output is: 150 watts into 2, 4 or 8-ohm load

 OUTPUT LOAD IMPEDANCE

4, 8, or 16 ohm (stereo) 2, 4, or 8 ohm (mono)

 RATED POWER BAND

20Hz to 20,000Hz

 TOTAL HARMONIC DISTORTION

Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is 0.5%

 FREQUENCY RESPONSE

+0 /-0.5dB from 20Hz to 20,000Hz

+0/-3dB from 10Hz to 70,000Hz

 SENSITIVITY

1.2V unbalanced inputs

2.5V balanced inputs

 A-WEIGHTED SIGNAL-TO-NOISE RATIO

100dB

INTERMODULATION DISTORTION

Maximum Intermodulation Distortion if instantaneous peak output per channel does not exceed twice the rated output, for any combination of frequencies from 20Hz to 20,000Hz, with both channels operating is 0.5%.

 WIDE BAND DAMPING FACTOR

Greater than 14

POWER REQUIREMENTS

120V, 50/60Hz, 3.6A

OVERALL DIMENSIONS

(H x W x D including feet and knobs)

8-1/4” (21cm) x 16-1/2” (42cm) x 12” (30.5cm)

 WEIGHT

67 lbs. (30.5kg) net

75 lbs. (34.1kg) in shipping carton