McIntosh MC312 2-Channel Solid State Amplifier

Description

Overview

The MC312 is a two-channel solid-state power amplifier from McIntosh of Binghamton, New York. A stereo power amplifier in the classic McIntosh mould, it pairs a high-current Autoformer-coupled output stage with the brand’s signature metering and protection, built to drive real-world loudspeakers with sustained authority.

Design & build

The MC312 wears McIntosh’s familiar dress: a black glass front panel with an illuminated logo and direct LED backlighting, over a polished stainless-steel chassis with monogrammed heatsinks. It measures 17.5 × 9.44 × 22 inches including feet and handles, and weighs 105 lb. Gold-plated Solid Cinch binding posts provide multiple terminals for bi- and tri-wiring.

Sound & performance

The MC312 delivers 300 watts per channel, and thanks to the Autoformer output that figure holds into 2, 4 or 8 ohms — the amplifier keeps its grip regardless of loudspeaker impedance. Total harmonic distortion is quoted at 0.005% with frequency response of +0, -0.25dB from 20Hz to 20kHz and a wideband damping factor greater than 40, the marks of a stable, well-controlled design.

Key features

The output stage is a push-pull complementary circuit protected by Power Guard, which prevents clipping in real time, and the fuse-less Sentry Monitor for short-circuit protection. Two balanced inputs are provided, with unbalanced inputs available for bi-amping and tri-amping. Dual blue watt meters can be switched off, and remote power control is supported.

Technology

At the heart of the MC312 is the McIntosh Autoformer, which matches the output stage to the loudspeaker so that full power is available into any nominal impedance — a distinguishing McIntosh technology. Eco-friendly power management reduces consumption when the amplifier is idle.

Specifications

Type: two-channel solid-state power amplifier (Autoformer-coupled). Power: 300W into 2, 4 or 8 ohms. Output stage: push-pull complementary. THD: 0.005%. Frequency response: +0, -0.25dB, 20Hz–20kHz. Damping factor: >40 (wideband). Dynamic headroom: 2.3dB. Inputs: 2 balanced, plus unbalanced. Protection: Power Guard, Sentry Monitor. Dimensions: 17.5 × 9.44 × 22 in. Weight: 105 lb.

Who it’s for

The MC312 suits the two-channel listener who wants McIntosh power and control for demanding loudspeakers, with the headroom to drive them effortlessly and the flexibility of bi- and tri-wiring. It partners naturally with a McIntosh preamplifier and revealing full-range loudspeakers.

Why buy from Hidden Home Technology

A power amplifier of this class rewards careful matching to preamplifier and loudspeakers. We can demonstrate the MC312, advise on partnering equipment and arrange delivery and installation across the South. Speak to our team to arrange a listen or to specify your system.