What qualities do you look for in a good amp?

I like the ones that just get out of the way.This is one that changes the signal the least from input to output. I like the romantic sound but not on every recording.Quiet is a major plus...no hum in the speakers. So far the ones that seem to do this the best IMHO are digital amps. They don't weigh much but are 50% more efficient than the average amp.Which means they only take in what the speakers need.Instead of giving half of their stated power to the atmosphere in the form of heat.

Good Luck with the Hunt