McIntosh MA-2275 Vacuum Tube Integrated Amplifier. The MA2275 is the first McIntosh integrated amplifier to rely exclusively on vacuum tubes in all audio circuits. The new design combines classic vacuum tube audio performance with state-of-the-art control technology. A new ultra-low-noise preamp has been engineered for the MA2275. Old fashioned point-to-point wiring, common in vacuum tube designs, has been replaced with glass epoxy printed circuit boards developed through modern computer-aided design techniques. Input switching is accomplished inside glass cylinders filled with an inert gas to prevent signal degradation.


Features
Low Noise MM Phono Input
Balanced CD Input
Six Program Source Inputs
Preamp-Out/Amplifier-In Loop
Extra Set of Pre-Outs Provided
Taps for 2, 4, & 8-Ohm Speakers
Illuminated Peak-Responding Wattmeters
Silent Electromagnetic Switching
Defeatable Bass & Treble Controls
Fiber Optic Lighting
Headphone Jack
Remote Control