B&C 21SW152 is a very high power 21" subwoofer for speaker subwoofer systems- B&C 21SW152 21" Subwoofer has a lightweight neodymium magnet - B&C 21SW152 21" high power speaker for speaker subwoofer
4) B&C 21SW152-8 21" Neodymium Subwoofer 8-Ohm DJ Live Sound 4000W Bass Sub
2) B&C 21SW152-4 21" Neodymium Subwoofer 4-Ohm DJ Live Sound 4000Watts Bass Sub
B&C 21SW152 is a very high power 21" subwoofer for speaker subwoofer systems- B&C 21SW152 21" Subwoofer has a lightweight neodymium magnet - B&C 21SW152 21" high power speaker for speaker subwoofer
Source B&C 21SW152 21" Neodymium Subwoofer 4000W High Power 21 inch woofer on m.alibaba.com