McIntosh MC312 2-Channel Solid State Amplifier

  • 300 Watts x 2 Channels
  • 27% increase in Dynamic Headroom compared to previous model
  • McIntosh Autoformers™


MC312 2-Channel Solid State Amplifier

  • \Best Stereo Power Amplifier of 2019

Prepare yourself for years and years of musical enjoyment with the MC312 Power Amplifier. A 300 Watt per channel stereo amplifier, the MC312 is a great choice to power virtually any home audio system. The full 300 Watts can be delivered to almost any speakers regardless if they have 2, 4 or 8 Ohm impedance thanks to our unique Autoformer technology.

The MC312 has received numerous improvements compared to our previous 300 Watt stereo amplifier. Most notably is that filter capacity has been doubled, which increases dynamic headroom an impressive 27% from 1.8dB to 2.3dB. This increase means the MC312 will be even better suited to handle wide dynamic swings in your music. Distortion prevention and bass performance also benefit from the increased filter capacity.

Other updates include the addition of our Monogrammed Heatsinks and our eco-friendly power management system. Numerous circuit components and internal wiring have also been upgraded. Balanced and unbalanced outputs have been added to enable bi-amping or tri-amping your speakers; they can also be used to connect to a secondary system if your preamplifier doesn’t have enough connections, or to connect a powered subwoofer.

The MC312 is packed full of other exclusive McIntosh technologies:

  • Power Guard® that monitors and adjusts the input signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping
  • Sentry Monitor – 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
  • Power Control to send power on/off signals to other connected McIntosh components (such as CD Playersturntablestuners and media streamers) for easy system power up and shutdown
  • Our patented Solid Cinch speaker binding posts that easily but securely attach the speaker cables to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables



  • Power Output per Channel :-   300 Watts @ 2, 4 or 8 Ohms
  • Number of Channels    :-  2
  • Total Harmonic Distortion   :-  0.005%
  • S/N below rated output
    Balanced: 120dB
    Unbalanced: 118dB
  • Dynamic Headroom   :-  2.3dB
  • Damping Factor  :-   >40 Wideband
  • Rated Power Band   :-  20Hz to 20kHz
  • Frequency Response
    +0, -0.25dB from 20Hz to 20,000Hz
    +0, -3.0dB from 10Hz to 100,000Hz


  • Remote Power Control    :-    Yes
  • Multi-Channel DB25 Cable    :-  N/A


  • Speaker Binding Post Type  :-  Patented Solid Cinch™ Speaker Binding Posts


  • Circuit Configuration  :-  Push-Pull Complementary
  • Circuit Design   :-  Solid State
  • Mono Bridge  :-  No
  • Mono Parallel  :-  No
  • Output Type  :-  Autoformer™
  • Meters   :-  Yes
  • Meter Light Switch    :-   Yes
  • Balanced Input   :-  2
  • Front Panel  :-  Glass
  • Illumination   :-  Direct LED
  • Chassis Style  :-  Polished stainless steel & black painted steel


    • Dimensions (W x H x D)
      17-1/2″ (44.45cm) x 9-7/16″ (23.97cm) (including feet) x 22″ (55.88cm) (including front panel, handles and cables)
    • Weight    :-  105 lbs (47.63 kg)
    • Shipping Weight    :-   138 lbs (62.59 kg)