Like like links I posted for 9355 and 9555 arent working. Here you go.

http://gallery.audioreview.com/showp...&ppuser=243898

http://gallery.audioreview.com/showp...&ppuser=243898


9355 looks to be 70watts in 4ohm and 9555 is about 160-170watts in 4 ohm(100 watts in 8ohm)

It's all about the quality of your amp. I used to use a 45 watt integrated amp to drive Triangle Comete (91dB sensitivity). 45 watt was ALOT more than I ever needed. But if you go with 9555, you wouldnt need to limit your speakers to handful of speakers with 90+dB sensitivity with friendly load(8ohm speaker Load).