The "little" SP3
sounds shockingly powerful! I played it for a few guys that didn't believe me when I told them it's rated @ 38 Wpc.

On the same topic, I must quibble a bit with the AH review of the Onix; I didn't think it really had any of the flaws often attributed to tubes. I especially didn't find the bass mushy at all! In fact, it really souned like solid state bass. The measurements may have indicated a rolled off top end, but I was never able to hear this in my own use (although some of the speakers I drove with it are probably a bit more 'airy' than most, including the very bright Ref-1's that came with the amp).