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1960's McIntosh Model 240 Stereo Tube Power Amplifier in Very Good ConditionCondition Notes: Folks, this beauty has all the magic you'd hope for in a vintage Mac amplifier. The output is loud and clear with no audible hum or distortion, and the channels are perfectly balanced. All tube sockets have been cleaned, controls and switches operate static-free. Certainly ready to use and good for another 60+ years! Looking under the cover, the internals are clean, show very little age, and appear to be completely original and unmodified.Test Results: This amplifier powers up flawlessly, operates normally and sounds exactly as it should - smooth and clear with just enough grit to remind you it's a 60 year old tube powered piece of audiophile history. This MC240 is truly a rare find and is the finest example we've seen here - and we've seen a few. Here at the shop, we did routine testing, cleaning and inspection. Currently on display in our HiFi room and bringing out the best from every pair of speakers we've been running this through.Tubes: (4) Groove Tubes GT-6L6 tubes, (3) 12AX7's, (2) 12BH7's, and (2) 12AU7'sPower output: 40 watts per channel into 8Ω (stereo), 80 watts into 2Ω (mono)Speaker load impedance: Variable 4Ω to 16ΩDimensions: 17.25 x 10.75 x 8" ; Weight: 56lbsIn the Milwaukee Area? Stop in our shop to inspect/demoSee our feedback and thank you for considering. All the gear we sell is packaged with great care for safe arrival in the condition advertised and backed up by our 14 day full refund policy in the event you are not happy for any reason.Local Pickup at our shop in Milwaukee, WIMilwaukee Vintage10220 W. Greenfield AveMilwaukee, WIOpen Tues-Friday 11-6Saturday 11-3
Are you buying a documented, properly serviced MC240, or merely a clean-looking vintage chassis? At US$3,750, this is a fair-to-strong market price: it sits above the US$3,000 median but comfortably below the US$4,788 75th percentile, making “Very Good” condition potentially worthwhile rather than a bargain.
The MC240 remains a highly regarded 40-watt-per-channel stereo amplifier, with McIntosh’s excellent output transformers, broad speaker-load flexibility, and the option to run mono at 80 watts. Its age makes restoration history more valuable than cosmetics: confirmation of healthy transformers, replaced aging capacitors, accurate bias, quiet operation, and correct tube complement would justify the ask. Without that documentation, negotiate accordingly; with it, this is a sensible entry into classic McIntosh rather than an obvious overpay.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
McIntosh Laboratory, founded in 1949 in the United States by Frank H. McIntosh and Gordon Gow, embodies a storied heritage of American audio innovation. Originally based in Silver Spring, Maryland, before relocating to Binghamton, New York, where products are still handcrafted today, the brand emerged from a commitment to superior sound reproduction. From powering President Lyndon Johnson's inauguration to the Grateful Dead's Wall of Sound at Woodstock, McIntosh has shaped pivotal moments in music history and pop culture, earning its place as a cultural icon.
The company specializes in a comprehensive lineup of high-fidelity components, including renowned amplifiers—particularly its revered tube models for their warm, enveloping sound—along with solid-state power amps, stereo tuners, loudspeakers, turntables, music streamers, processors, and digital-to-analog converters. This breadth supports both two-channel stereo systems and multi-channel home theaters, delivering immersive experiences in music and film. Iconic blue watt meters on their gear have become globally recognized symbols of precision and power.
Positioned firmly in the high-end market, McIntosh commands respect among discerning audiophiles for its uncompromising quality, luxurious build, and timeless design. Far from mid-tier or niche boutique, it stands as a premium benchmark, favored by legendary musicians and producers across decades, blending vintage allure with modern performance for those who demand the ultimate in sonic fidelity.
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