McIntosh MC2600 (1987-1994)

Specifications

Historical Significance

The MC2600 came out in 1987. It puts 600 watts per channel into 2 ohms, which made it the top of McIntosh's solid-state line. It is a dual mono design with a massive toroidal transformer. The Autoformer lets every speaker, whatever its impedance, get the full output.

Sound Signature

The MC2600 stays clean even at very loud volumes. Bass is deep and tight, never flabby. The midrange has a subtle warmth that keeps it musical instead of clinical. Distortion is virtually nonexistent, thanks to the Power Guard and Sentry Monitor circuits, which keep the output in check without sacrificing dynamics. It drives inefficient horns and modern floorstanders alike.

Maintenance and Restoration Tips

After decades of service, these amplifiers demand attention—but they reward it. Electrolytic capacitors are the first to go; replacing them restores stability and clarity. Output transistors rely on thermal paste that dries out over time, so re-pasting is essential for proper heat transfer. The iconic blue meters still glow, but their bulbs may need replacing. And if you hear a faint click or channel drop, check the relays—cleaning the contacts often brings full function back to life. A well-serviced MC2600 sounds as commanding today as it did in 1987.

Collectibility and Market Value

• Market Value: $2,500-$4,500 depending on condition and cosmetic appearance
• Collectibility Rating: 8/10

eBay Listings

McIntosh MC2600 Stereo Power Amplifier AC100V Excellent Cond

$5,500

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