(2) 12 kicker cvx in a custom ported box 800w rms 1600 max I believe a peice v.s. (1) rockford T1 12" subwoofer in a custom ported box! 800w rms 1600w max! The cvx r more wattage and more cone area than the T1 I.am looking for a loudness/ good subwoofer!