Hi Gary, The MC501 was made from April 2003 through Dec, 2010. In response to requests for a unit that fit in more shelves, it was only 14" deep, giving it less square inches of heatsink per watt than many models. In most applications, that is fine, but very hard to drive speakers pushed hard could warm it up. The amp garnered a reputation that it was the best thing since Viagra, due to some very glowing reviews, but in fact, virtually all similar Mc amps were just as amazing sounding at the time. The current MC611, 600 watt Monoblock puts it to shame though. ~ Chuck of McIntosh Tech Support
Chuck, many thanks for your invaluable expertise. I bought my MC 402 15 years ago, and I'm hoping ya'll might come out with MC 401 mono's. But no complaints at all from my 402.
What Frank said is correct, although it has been a bit more than 4 years I believe. You may be able to find a MC501 at Audioclassics.com
Hi, they should discontinued that unit about 4yrs ago, updated that to the MC601, which has been updated to the now MC611
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