McIntosh MC2155 (1981–1987)
A 2-channel solid-state power amplifier made in the USA with 150 watts per channel output.
Overview
The McIntosh MC2155 is a stereo power amplifier produced by McIntosh from 1981 to 1987. Built in the USA, it delivers 150 watts per channel into two channels or 300 watts in mono mode. Known for its iconic blue VU meters and robust construction, the MC2155 was positioned as a high-performance amplifier during the early 1980s. It features Power Guard technology to prevent clipping and speaker damage.
Specifications
| Power output | 150 Watts per channel (x2), 300 Watts mono (x1) |
| Frequency Response | 20Hz to 20kHz (+0, -0.25dB) |
| Signal to Noise Ratio | 95dB |
| Dimensions | 138 x 406 x 368mm (5.43 x 16 x 14.49 inches) |
| Weight | 29.5kg (65lbs) |
| Original Price | $2295 |
Design
The amplifier features the iconic blue VU meters characteristic of McIntosh audio equipment and includes Power Guard protection to prevent distortion and safeguard connected speakers.
Market
A unit listed at $2,599 was noted as being in good condition, with a fair market value around $2,400. One previously sold unit in Japan was listed at Yen 238,000 and had undergone maintenance in July 2012, including capacitor replacement. A known user question notes the amplifier can be slow to power on.
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