McIntosh Black 3-Channel Power Amplifier - MC303

Abt Model: MC303 | UPC: 842548103108
Special Order: 7 To 14 Day Delivery Time
Note: This McIntosh product is only available for sale in our store and delivery within a 100 mile radius of our Glenview, IL Store.
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Product Details

McIntosh Black 3-Channel Power Amplifier - MC303

The McIntosh MC303 is our most powerful multi-channel amplifier to date, providing 300 watts into each of 3 channels. 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. For surround channels, combine the MC303 with our MC302 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, such as our XRT1K or XRT2K. 

The MC303 shares many notable McIntosh technologies that are found in our 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 our 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 balanced 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 our products. A polished stainless steel chassis, classic black glass front panel, knobs and custom machined aluminum handles all come standard. Contact your local dealer​ to learn more.


Electronic Specifications

  • Power Output Per Channel: 300W @ 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

General Specifications

  • Circuit Configuration: Push-Pull Complementary
  • Circuit Design: Transistor
  • Mono Bridge: No
  • Mono Parallel: No
  • Autoformer: No
  • Meters: Yes
  • Meter Light Switch: Yes
  • Balanced Input: Yes
  • Front Panel: Glass with handles
  • Illumination: LED Fiber Optic
  • Chassis Style: Inverted


  • Speaker Binding Post Type: Yes

Approximate Dimensions:

  • Height: 12-3/8"  (Including feet) 
  • Width: 17-3/4"
  • Depth: 22" (Including front panel and cables)

Approximate Weight:

  • Unit: 155 lbs
  • Shipping: 180 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 3 Years Limited
California customers: Proposition 65 WARNING - learn more
Key Features
300W @ 4 or 8 Ohms Load Power Output Per Channel/ 3 Number Of Channels/ 0.005 Percent Total Harmonic Distortion/ 112dB S/N Below Rated Output/ 1.8dB Dynamic Headroom/ 20Hz to 20kHz Rated Power Band/ Push-Pull Complementary Circuit Configuration/ Transistor Circuit Design/ LED Fiber Optic Illumination/ Inverted Chassis/ Speaker Binding Post Type/ Black Finish
More reasons to buy the McIntosh Black 3-Channel Power Amplifier MC303 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The McIntosh Black 3-Channel Power Amplifier MC303 is Brand New.
  • The McIntosh Black 3-Channel Power Amplifier MC303 Ships in a Factory Sealed Box.
TypePower Amplifier


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