4000W High Excursion Subwoofer. DS18 Audio 12 in

FS of 39 hz, so you can easily dip in the subsonic range with no issues along as your box, is tuned accordingly Nominal Diameter 12 Nominal Impedance 2+2 ohms RMS Power Handling 2000W MAX Power Handling 4000W Sensitivity (1w/1m) 87 dB