OTOH, if you have really efficient speakers, the cheapie tube amps can sound really good. I use one in one of my systems and love it. The OP really needs to fill out his profile for these suggestions to be helpful. Given the OP's budget and the sound he is after, I would also consider a vintage Sansui solid state integrated or receiver. That will at least give you a warm, non-fatiguing sound, even more than a lot of tube amps, but again, speaker matching is critical. Depending on the speakers, you might get warm and smooth, or you might get muddy and veiled.