Lasherž
CarAudio.com Elite
Same exact situation for me, I've got a sealed 15" and going from 500W rms to 1200W rms same sub, same enclosure the difference was... I don't even know if I gained 3 db.I noticed this in my sub as well. As I bump a bit above normal level it sounds awesome, but as I get overzealous, I seem to lose bass. It is also a sealed 10". Now I know why, thanks.