yup i have it on low per right now just to one coilThats weird, my buddy has a 15 dd, we had hooked it up before free air, but with very small power to it. It sounded like shit like if the coil was maybe rubbing or something, i dont really remember. But this kid bought it, put it in a box, 2400 rms to it, and it pounds and dont hear any abnormal noises from it at all.
Vid