4) B&C 21SW152-8 21" Neodymium Subwoofer 8 Ohm DJ Live Sound 4000Watts Bass Sub | Reverb
B&C 21SW152 Ported Design Opinions | AVS Forum
21SW152 LF Drivers - B&C Speakers
B&C R21SW152-4 Recone Kit for 21SW152-4
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