I second the motion on the Cary 300B SEI but would add that if you can find a used LX20 version and don't mind replacing tubes a little more frequently, you'll get twice the power and quality. Also a few minor upgrades, eg replace the volume pot with a stepped attenuator, replace rectifiers with hexfreds, replace bypass and coupling caps with DynamiCaps, bypass the balance pot, and you got a different beast altogether capable blowing away the big boys at any price.
