Page 1 of MA2275 Integrated Amplifier by McIntosh Laboratory, Inc.

ma2275 vacuum tube integrated amplifier cutting-edge technology combined with classic vacuum tube performance 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 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 the new modernized circuit design of the classic mc275 power amplifier which incorporates mcintosh s exclusive unity-coupled output circuitry to provide clean low-distortion power over the entire frequency range serves as the power amplifier section in the ma2275 low noise combined with clean power in an all vacuum tube integrated available only from mcintosh.

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