McIntosh MC303


The MC303 was designed with the intent to drive a home theater’s front left, front right and center channels.

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McIntosh MC303

The McIntosh MC303 is their most powerful multi-channel amplifier to date, providing 300 Watts into each of 3 channels.

McIntosh MC303

It features their 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.

For surround channels, combine the MC303 with their MC312 or MC152 amplifiers and fully immerse yourself in your movie collection.

For music lovers, the MC303 can be used in tri-amping configurations on compatible speakers.

The McIntosh MC303 shares many notable McIntosh technologies that are found in their other home audio and home theater products, including Power Guard® that prevents over-driving of the amplifier and the resulting harsh sounding clipping that could damage your speakers.

Sentry Monitor™ is their fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal.

Inputs for both balanced cables and unbalanced cables are available to provide flexibility in connecting to the rest of your system.

A triple bank of blue watt meters provides instant recognition of power output (the meters may be switched off for theater use if they conflict with the television or movie screen).

Aesthetically, the MC303 is every bit as McIntosh as any of their products.

A polished stainless steel chassis, classic black glass front panel, knobs and custom machined aluminum handles all come standard


Specifications McIntosh MC303
  • Power Output per Channel

300W @ 2, 4 or 8 Ohms

  • Number of Channels


  • Total Harmonic Distortion


  • S/N below rated output


  • Dynamic Headroom


  • Damping Factor


  • 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


  • Multi-Channel DB25 Cable



  • Circuit Configuration

Push-Pull Complementary Autoformers

  • Circuit Design

Solid State

  • Mono Bridge


  • Mono Parallel


  • Output Type


  • Meters


  • Meter Light Switch


  • Balanced Input


  • Front Panel

Glass with handles

  • Illumination

LED Fiber Optic

  • Chassis Style



  • Speaker Binding Post Type



  • Unit Dimensions (W x H x D)

17-3/4″ (45.09cm) x 12-3/8″ (31.43cm) (including feet) x 22″ (55.88cm) (including front panel and cables)

  • Unit Weight

155 lbs (70.3 kg)

  • Shipping Weight

180 lbs(81.6 kg)

McIntosh MC303 Angled



McIntosh Heritage Founded in 1949 by Frank McIntosh and Gordon Gow McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Their iconic blue Watt output meter is globally recognised as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music. McIntosh products are designed and handcrafted at their Binghamton, NY factory by their dedicated employees who share a passion for music and the McIntosh heritage. Since their inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson's inauguration speech to Woodstock to the famous Grateful Dead "Wall of Sound," McIntosh has not only witnessed history, they have shaped it.

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