I second the Berning ZH-270. Frankly the 270 is a whole different ball game. Once you hear it there is no turning back. And like Twl said, it is virtually maintenace free, runs cool, and is nearly indestructable. None of the finicky protocol to deal with like most tube amps. If there is no load present it is not going to "melt down", I have also accidentally shorted the binding posts before(unknowingly on an equipment rack)and not only did it not skip a beat, it played for 8 HOURS like that, and never even got hot. And the amp has several levels of protection for power spikes and what not. Truly a bench mark piece. I recommend if you can find one, or hear one to give it a chance. I would be very suprised if wasn't everything and more than what you seek. Good Luck.
Kris
Kris