McIntosh MC312 2-Channel Solid State Amplifier
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Standard delivery within 2–5 business days
McIntosh MC312 2-Channel Solid State Amplifier
- 300 Watts x 2 Channels
- 27% increase in Dynamic Headroom compared to previous model
- McIntosh Autoformers™

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.

While still looking very much like a McIntosh, the MC312 has received some key design updates. Direct LED backlighting now illuminates the front panel for improved color accuracy. The audio output Autoformers still straddle the power transformer, but are now located in new enclosures that are capped by a single cover containing glass inserts that show the wiring diagram for each transformer.
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 Players, turntables, tuners 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
Specifications
| Electronic Specifications | |
| FTC Power Output Rating | 300 W |
| Power Output per Channel | 300 W into 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 20kHz +0, -3.0dB from 10Hz to 100kHz |
| Control | |
| Remote Power Control | Yes |
| Multi-Channel DB25 Cable | N/A |
| Connectivity | |
| Speaker Binding Post Type | Patented Solid Cinch™ Speaker Binding Posts |
| General Specifications | |
| 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 |
| Weights & Dimensions | |
| Unit 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) |
| Unit Weight | 105 lbs (47.63 kg) |
| Shipping Weight | 138 lbs (62.59 kg) |
Caring for your Speakers and Amplifiers
To Keep your equipment safe these are some best practices to note. Please be advised that this is only to reduce the risk of misuse and is not an exhaustive list.
Speakers
- Speaker terminals are marked red and black, ensure your amplifier to the speakers are wired on the same colours
- Ensure no loose speaker wire from the red touches a loose wire from the black as this will lead to a short circuit and damage either the speaker, the amplifier or both.
- Not all speakers are designed to play at max volume, kindly consider the pairing of your amplifier and speakers
- Speaker cabinets cannot be replaced please handle with care.
AV & Stereo Amplifiers
- If your amplifier has HDMI ports, ensure all devices are off before plugging in the HDMI cable
- Turn off the amplifier before swoping out or adding speaker cable
- Amplifiers generate heat, place them in a well ventilated space. if possible avoid having anything on top of the unit.
- adding a surge protector can assist with power dips which are likely to damage your devices. Isotek and Furman are industry standard.
- Dusty environments can sometimes lead to accumulation of dust in the electronic components that might affect heat regulation
Shipping & Returns
- Free shipping on orders over R500 within the country.
- Standard delivery within 2–5 business days. Delays will be communicated. This might vary slightly depending on your location.
- Return items in original condition for a full refund. (unopened state)
- Returns that are open/unboxed will be subject to a handling fee. Refunds will only be processed after testing the unit.
