I have a 100 watt-per-channel Krell KAV-500 (5-channel) driving two pairs of speakers: (A) Dynaudio Confidence 3 (B) Sonus Faber Extremas. The room is not too big, (13' x 18', 12' ceiling) and I don't really listen to blaring music. I think it all sounds excellent. If the room was 2 or 3 times the size and I wanted it loud, I'd want monoblocks with at least double the power.
