Alpine SWD-355 Subwoofer Amplified Powered Active Sub with Wired Remote 150w RMS

12" (30CM) Amplified Subwoofer Box SWD-355. 150W RMS into 4Ohm @14,4V 1%THD. Excellent bass performance plus high power handling and efficiency of the 12" (30cm) SWE-1244E Subwoofer combined with the MRV-M250 Digital V-Power amplifiers for dependable, quality power.

eBay