Its true Roy from GMA thinks very highly of Edge amps...however...I am having very good results with an older Belles set up...very non-fatiguing sound...with good detail and weight...I would be more concerned with the stands for Europas than power...they weigh frickin 50lbs each!...I know people get excited when they hear of a 4 ohm load...but the Europas sound very good with a variety of amps....just stay away from HT receivers(yuk)