When the C-504 was launched in the early Eighties, McIntosh was touting this as their best compact preamplifier. And it clearly was at an almost bargain price of $975. It was well made and more importantly, sounded really good. Its not “reference” standard like say, McIntosh’s C2300 but if you want a truly musical sounding preamp and wears the McIntosh badge, the C-504 is as good as any (if not one of the better buys) you can get for under $700 now. For a preamp that is more than three decades old and still beats most current preamps at the $1,000 category is a phenomenal achievement in its own right. Phono input is for MM cartridges.
Cosmetically, the unit looks good for its age. Some scuff marks on the case cover and tiny knicks along the edges. We don’t have the original box but will securely pack it for safe shipping.