Parameters BRM12 12"-2Way"Speaker box BLACK CARPET 350 watts max.power 30 Oz magnet[woofer] 8Ohm Impedance 380*710*300[W*D*H]   BRM15 15"-2Way"Speaker box BLACK CARPET 450 watts max.power 30 Oz magnet[woofer] 8Ohm Impedance 465*852*300[W*D*H]