These babies are 2-60 rms..
Most aftermarket stereos with good built in amps only put out 35w per channel.
You're only worry would be distortion and you would have to have it unpainfully loud before you need to worry about that...
And no, i dont know the current... They are frickin paper andn foam, so you know they are shitty.. Whereas these are made with Plus One+ injection-molded polypropylene (IMPP) woofer cone with hi-roll rubber surround
2006 G6 GT
Mods so far: Black arrow overlays, Chrome recessed grilles, Blue LED license plate light, Blue LED reverse lights, Smoked tails, 20% Tint all around, Red led's for the interior, White led dome and map lights.
Sound System: 4 Infinity Kappa component speakers, 2 Amps (950w total) and 2 10" Kenwood KFC subwoofers, 7" touch screen Pioneer DVD
Performance: Mobile 1 oil, Mobile 1 oil filter