McIntosh Labs MC275 Vacuum Tube Power Amplifier

Model: MC275 UPC: 12140450 Item: 81877

Product Information

MC275 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.


MC275 Highlights:

  • Gold-Plated Unbalanced Input
  • Jacks and Speaker Outputs
  • Balanced XLR Input Jacks
  • Ceramic Tube Sockets with Gold-Plated Pins
  • Front Apron Power Switch
  • IEC Plug-In Power Cord on Right Side
  • Stereo/Mono Switch
  • Taps for 4, 8, & 16-Ohm Speakers
  • Polished Stainless Steel Chassis


MC275 Features:

  • 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.
  • WIDE BANDWIDTH: McIntosh’s exclusive Output Circuit and Transformer designs ensure ultra-wide frequency bandwidth.
  • MONOBLOCK: The two 75-watt channels may be combined into a single channel of 150 watts into 2, 4 or 8-Ohm loads.
  • INVERTED CHASSIS: Heat producing tubes are located on top of the chassis, under a protective cage, while other circuits are shielded within the polished Stainless Steel Chassis.