1.dual 12" woofer, Bass speaker, subwoofer, stage audio 2.2x8"+1x1.7", ... 3.2x12" 800w/4ohm 4.OEM/ODM LA212B is a dual 12" woofer, Bass speaker, subwoofer, stage audio LA-208 is a ... dual 8" line array, pro speakers, pro audio systems,sound systems . ...