As for OP's question, I've found receivers like the Technics SA-300, Marantz 2226B, etc. all sound fantastic. They even drove my set of Pioneer BS-22's fantastically as well. Any sane person (read: non-collector!) would be perfectly happy with that pairing for a long while.
Yes but what type of music do you listen to? Is it on vinyl, CD, and do you listen to the radio? There is so many factors involved that don't seem to get mentioned here. ie if it's vinyl are they analog or digital? What kind of table are you using? I think that there is truth to be told with low wattage amps/receivers sound better with 2 driver speakers.