Wharfedale Pro Wharfedale Delta X-218B Dual 18" Passive Subwoofer - Speakers from Prebeat UK
Citronic CASA-10B 10" 300W Passive PA Subwoofer | Audio Volt — Audio Volt
AUNA Two Hi-Fi Subwoofers, 80W RMS Passive Subwoofer Speaker for Home Theatre System, Big Bass, Compact Design, 100W Max Hifi System, AUX Input for MP3 & CD Players, Volume Control, Auto-Off :
FBT Muse 218S Dual 18-inch Passive Subwoofer
Electro-Voice ELX200-12 12" Passive Subwoofer Speaker - Music Gear Direct
Citronic CASA-15B 15" 500W Passive PA Subwoofer | Audio Volt — Audio Volt
FBT ARCHON 208S 600w Passive Subwoofer (Each) - Speakers from Prebeat UK
Order the Dayton Audio 15" Reference Passive subwoofer kit - SoundImports
Power Dynamics PDY215S 15" Passive PA Subwoofer - 900W
Tannoy VSX 115B - 15" Direct Radiating Passive Subwoofer for Portable and Installation Applications in Black Buy Tannoy VSX 115B - 15" Direct Radiating Passive Subwoofer for Portable and Installation Applications in