As much as I hear that these speakers don't need much power to drive them, I believe you need, certainly more than 100W, to play them load enough to enjoy Rock music. So I found Dartzeel Amp to run out of steam with in this situation. I am specifically interested in knowing what other SS Amps are good match with these speakers. It seems to me that one needs about 200W to get these speakers sound really good with Rock music. Any thoughts?