Obviously your looking at something used as I don't know of anybody making good mono blocks for under a grand. A few years ago while just looking on ebay someone was selling a pair of the Denon POA-6600 mono blocks for $800.00 and listed them as in mint condition and when I got them the seller was right. The amps appeared to look better than mint, they looked brand new, man was I happy. Just about a month ago I got curious and decided to hook them up to my Maggie 3.6R's and they sound phenomenal on my Maggies. The Denon's run cool, have plenty of power, and you can leave them on all the time with no worries. They are still hooked up to the 3.6's and I have no desire to remove them. Look for a used pair of the Denon's if you want something cheap, reliable, and sounds great.
