In your price range you could get a brand new AMC CVT-2100as. It's an 80wpc hybrid design (jfet input/kt88 output) Before getting one of these I had the Quicksilver Silver 90 Mono Amps. The AMC isn't as refined on top as the Quicksilvers, but it has a similar midrange and tighter bass. Whether this works for you will depend on associated gear. The AMC is fan cooled and the fan can be audible when music isn't playing, but the tubes should last a long time.
Which tube amp to buy?
OK, I've switched to Solid State for a while and I do miss the midrange of a tube amp. I'm thinking of buying a medium-high powered tube amp (60WPC to 100WPC) and aren't sure which ones to consider with all the choises. I've been directed to the CJ MV50 and the Citation II from HK. Any opinions on these or experience in comparisons? I am not looking for an analytical sound (like a Sonic Frotiers Power series) I have that currently. I want the midrange bloom and magic. Is there anything out there that is dependable and in the $500 to $1000 range used?