I went to my local salon to hear two amp's I'm been fixating over when low and behold , there was the ARC Ref150 plunked between them in the sound room . I don't no how those three amps would sound at home or over longer periods , but that day with that equipment , ( ARC CD8 , ARC REF 5 pre , Mag 3.7's ) the 150 breathed more like music than the other two more pricy amps . It effortlessly bounced the usually hard to drive panel's around the room . I'm sure system synergy played a large part the good guys at this salon are very capable .