Pioneer TS-SW2501S2/S4 Maximum input power 1.200 W Nominal input power 300 W Frequency response 20 - 290 Hz Sensitivity (1W/1m) 90 dB Woofer size 25 cm Woofer material Basalt & Carbon Fiber reinforced IMPP Upper Cone Recommended sealed enclosure 12,7 litres 134,96 €