AUDSTER AUD-FR12BAT Professional amplified speaker Woofer size: 12″ Impedance: 40 Voice coil size: 50mm Magnet: 40 OZ Tweeter Voice size: 25mm Impedance: 80 Tweeter magnet: 9 OZ Frequency: 50-20Khz Crossover: 2.5Khz P.M.P.O Max Power: 2800W Built in USB/SD/MP3/FM/BT Speaker box Weight: 42LBS