1.dual 12" woofer, Bass speaker, subwoofer, stage audio 2.2x8"+1x1.7",350w ... LA212B is a dual 12" woofer, Bass speaker, subwoofer, stage audio LA-208 is a dual 8" ... .LA-208/LA-212B can be made both passive and active.Model: LA-208 line array speaker ... perforated steelSuspension system Proprietary rigging systemModel: LA-212B line array subwoofer Frequency response (3dB) 45Hz~350 HzLF driver 2x12” ...