Two NIB B&C 21DS115-4 21" 4Ohm Subwoofer Drivers | AVS Forum
Test Bench: B&C Speakers 21DS115 21-Inch Woofer | audioXpress
Clash of the titans: B&C Speakers 21DS115 vs RCF LF21N551. : r/diyaudio
B&C 21DS115-4 | Reverb
Outdo B&C 21DS115 and upgrade to modular subs - Speakerplans.com Forums - Page 5
Kit de réparation B&C Speakers 21DS115, 8 ohm, colle non incluse
B and C - 21DS115 - 407,00 € - SV-BC21DS115 - B and C - SonoLens
High Order Quarterwave Society (DIY Paraflex development community) | A sneak peak at Ricky Tipper's giant sized 25hz tuned Paraflex cabinets for the B&C 21DS115 driver .....72" x 24" x 36"... | Facebook
B and C - 21DS115 - 407,00 € - SV-BC21DS115 - B and C - SonoLens