VACUUM TUBE POWER AMPLIFIER
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.
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.
FULL POWER DELIVERY
The MC275 Series IV delivers 75 watts per channel into 4, 8, and 16 Ohm speakers.
ULTRA LOW NOISE AND DISTORTION
Distortion-canceling properties of McIntosh’s Unity-Coupled circuit and unique Output Transformer design yield much lower distortion and noise across
the entire 20-20,000Hz music range.
McIntosh’s exclusive Output Circuit and Transformer designs ensure ultra-wide frequency bandwidth.
The two 75-watt channels may be combined into a single channel of 150 watts into 2, 4 or 8-Ohm loads.
Heat producing tubes are located on top of the chassis, under a protective cage, while other circuits are shielded within the polished Stainless Steel
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%|
+0 /-0.5dB from 20Hz to 20,000Hz
+0/-3dB from 10Hz to 70,000Hz
1.2V unbalanced inputs
2.5V balanced inputs
|A-WEIGHTED SIGNAL-TO-NOISE RATIO||100dB|
|POWER REQUIREMENTS||120V, 50/60Hz, 3.6A|
(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|