FPB101H FPB121H FPB151H Configuration passive car Vented subwoofer passive car Vented subwoofer passive car Vented subwoofer Freq Response( -10dB) 30-1.5 KHz 35-2KHz 37-1.5KHz Sensitivity( 1W@ 1m) 86 dB 87 dB 88 dB Nominal Impedance 4 ohms 4 ohms 4 ohms Rated power 250 Watts 600 Watts 800 Watts Max.Power 500 Watts 1200 Watts 1600 Watts dispersion( HXV) / / / Low Frequency 10' ' SUBWoofer 12' ' SUBWoofer 15' ' SUBWoofer Input Connector Gold terminal Gold terminal Gold terminal Dimension( W× D× H) 660× 170× 300mm 780× 200/ 340× 400mm 850× 270/ 460× 450mm