I am running them off my deck so 17 rms or and 45 watts max
They are really clear, the midbass is lacking a bit, but that may change after i hook an amp up to them, for there size and location they fill the car nicley and I may or may noit get some in the rear (If I do opt for rear fill that is what I am getting)
http://www.infinitysystems.com/ thats there website for the refrence
http://www.infinitysystems.com/carau...ct.asp?ProdId='REF552I'&Ser=REF&Cat=MEL
the speakers rms is 45w peak 125
they smoke the stock speakers heh