hey guys, i recently took up an amp and sub up to the z2 but i get no bump. i can feel the vibration when i touch the sub but no real out put. i turned on the sub option and all that. is there a way i should set the eq to get it bumping? thankss.

or could it be my rca outputs? i tried a few different rca's into the subwoofer output. same thing. help please!