MCINTOSH MC275 V

Second-hand. In excellent conditions. Free from any visible signs of wear. Comes with original packaging and manual.

The McIntosh MC 275 power amplifier is a true legend in the world of tube audio, a presence that refuses to fade away—almost like the Dracula count of the industry. Introduced in 1961 and produced in its original version until 1970, the MC 275 has been a dream for many enthusiasts, symbolizing quality and tube power, with a design and sound performance that still hold a unique charm today. At the time, its list price was considered high but justified by the quality and engineering behind every detail; it was a serious investment for those who loved pure sound.

This amplifier was designed to deliver 75 watts per channel, with the ability, via a simple switch, to switch from stereo to mono mode to double the power to 150 watts, adapting to different listening needs and impedances. Featuring a patented “unit-coupled” circuit that uses three windings on the output transformers to optimize power and minimize distortion, the MC 275 stands out for its tonal fidelity and sonic definition that few other tube amplifiers can match. Its sonic signature is authoritative and deep in the bass, never overly bright, capable of bringing life and dynamics to any audio system.

Sonically, the modern MC 275 confirms the legacy of the original model, offering a dynamic, precise sound with clarity in transients and sharp articulation that engages the listener. The highs are delicate yet present, the bass solid and incisive, able to handle complex musical passages without losing control. Although rated at 75 watts per channel, in practice it approaches 100 watts thanks to the use of carefully selected and tested Russian tubes, with the option to replace them with KT88 tubes for those seeking a different tonal character.

The McIntosh MC 275 is therefore more than just an amplifier; it is an icon that transcends time, loved by those who seek an authentic, warm, and immersive listening experience without sacrificing power and precision.

Technical Specifications:

• Two-channel, tube power amplifier with unbalanced and balanced inputs
• Tubes used: (3) 12AX7, (4) 12AT7, (4) KT-88/6550
• Rated output power: 75W per channel into 4/8/16 ohms, 20Hz–20kHz
• Signal-to-noise ratio: 100dB (A-weighted)
• Frequency response: 20Hz–20kHz ±0.5dB; 10Hz–70kHz ±3dB
• Sensitivity: 1.2V unbalanced input; 2.5V balanced input
• Maximum total harmonic distortion (THD): 0.5% from 250mW to rated power
• Maximum intermodulation distortion: 0.5% if the instantaneous peak output per channel does not exceed twice the rated output, for any combination of frequencies between 20Hz and 20kHz with both channels operating
• Wide-band damping factor: >14
• Power requirements: 120V, 50/60Hz, 3.6A
• Dimensions: Height 210 mm; Width 420 mm; Depth 305 mm
• Weight: 30.5 kg