McIntosh MC303 Home Theatre Power Amplifier


At 300 watts per channel the new McIntosh MC303 Three Channel Power Amplifier with Autoformers is our most powerful multi-channel amplifier offering to date.

It features our renowned Autoformer™, which allows its full 300 Watts of power to be delivered into 2, 4 or 8 Ohm speakers with the lowest noise and distortion performance possible.

The MC303 was designed with the intent to drive a home theater’s front left, front right and center channels.
As most of a movie’s soundtrack is delivered by these three channels, the powerful MC303 provides all the power needed for an amazing in-home theater experience.


Electronic Specifications

  • Power Output Per Channel:  300W @ 2, 4 or 8 Ohms
  • Number Of Channels:  3
  • Total Harmonic Distortion:  0.005%
  • S/N Below Rated Output:  112dB
  • Dynamic Headroom:  1.8dB
  • Damping Factor:  >40
  • Rated Power Band:  20Hz to 20kHz
  • Frequency Response:  +0, -0.25dB from 20Hz to 20,000Hz; +0, -3dB from 10Hz to 100,000Hz


  • Remote Power Control:  Yes
  • Multi-Channel DB25 Cable:  No


  • Speaker Binding Post Type:  Yes


  • Circuit Configuration:  Push-Pull Complementary Autoformers
  • Circuit Design:  Solid State
  • Mono Bridge:  No
  • Mono Parallel:  No
  • Output Type:  Autoformer™
  • Meters:  Yes
  • Meter Light Switch:  Yes
  • Balanced Input:  Yes
  • Front Panel:  Glass with handles
  • Illumination:  LED Fiber Optic
  • Chassis Style:  Inverted
  • Dimensions (W x H x D):  451 x 314.3 x 559 mm (including feet, front panel and cables)
Additional Information
Weight 70.3 kg
Dimensions (DxWxH) 559 × 451 × 314.3 mm