McIntosh MC255 5-Channel Solid State Amplifier

Description

Overview

The MC255 is a five-channel solid-state power amplifier from McIntosh of Binghamton, New York, designed for the heart of a high-end multichannel system. It brings McIntosh’s build quality, protection technology and metering to home cinema and multi-room applications, delivering substantial, evenly matched power across five channels from a single power amplifier.

Design & build

The MC255 wears the familiar McIntosh dress: a black glass front panel with an illuminated logo and direct LED backlighting, over a substantial chassis with monogrammed heatsinks. It measures 17.5 × 9.44 × 21 inches (44.5 × 23.9 × 53.3cm) and weighs 89.5 lb (40.6kg). Eco-friendly power management shuts the amplifier down automatically when idle.

Sound & performance

The MC255 delivers 250 watts into 4 or 8 ohms on its three front channels, or 200 watts into 4 or 8 ohms across all five channels driven together. The output stage is a push-pull complementary design, direct-coupled with McIntosh’s Dynamic Power Manager, which allows the amplifier to deliver full rated power into both 4 and 8 ohm loads.

Key features

Protection is by Power Guard, which prevents clipping-related damage, and the fuse-less Sentry Monitor, which guards against short circuits. Five balanced inputs are provided alongside unbalanced inputs, so the amplifier suits both high-end processors and simpler sources. The channels are not bridgeable, being intended for genuine five-channel use.

Technology

The three front channels are metered by McIntosh’s TripleView power output meter, three independent mechanical meters housed in a single enclosure, with switchable lighting. Dynamic Power Manager governs the output stage to maintain power delivery across varying impedance, while the direct-coupled topology keeps the signal path short.

Specifications

Type: five-channel solid-state power amplifier. Power: 250W into 4 or 8 ohms (3 front channels); 200W into 4 or 8 ohms (all 5 channels). Output stage: push-pull complementary, direct-coupled with Dynamic Power Manager. Inputs: 5 balanced, plus unbalanced. Protection: Power Guard, Sentry Monitor. Metering: TripleView (front channels), switchable lighting. Dimensions: 17.5 × 9.44 × 21 in. Weight: 89.5 lb (40.6kg).

Who it’s for

The MC255 suits the listener building a serious home cinema or a multi-room system who wants McIntosh power and protection across five matched channels. It pairs naturally with a McIntosh processor and high-quality loudspeakers in a dedicated cinema or media room.

Why buy from Hidden Home Technology

A multichannel amplifier of this class rewards careful integration with processing, loudspeakers and room. We design and install dedicated cinema and media rooms across the South, and can demonstrate the MC255 and advise on the wider system. Speak to our team to arrange a demonstration or discuss your project.