... 1.dual 12" woofer, Bass speaker, subwoofer, stage audio 2.2x8"+1x1.7",350w/8ohm 3.2x12" 800w/ ... 4ohm 4.OEM/ODM LA212B is a dual 12" woofer, Bass speaker ... both passive and active.Model: LA-208 line array speaker Frequency response (3dB) 80Hz~19 KHzLF driver 2x8” ... (8in) Φ50mm voice-coilHF driver 1x1.7” (1.7in) Φ44mm voice-coilNominal Impedance 16ohmsSystem sensitivity ...