I have 4 mtx 8000's and it absolutely slams.I have them hooked up to two 2000 watts rms at 2 ohms amps and i want a sub that can handle more power i think i might go with the rockford fosgate power hx2 but i also might go with an mtx rfl15 and get rid of one of the amps.Does anyone outhere have some advice for me.