Ported enclosure for single 12" Audiopipe TXX-BD4-12 - Subwoofers / Enclosures - Steve Meade Designs - #1 Car Audio Enthusiast Forum in the world! - Meade916 - SMD
AudioPipe TXX-BDC4-12 12 Inch 2,200 Watt Dual 4 Ohm Car Speaker Subwoofer, Black, 1 Piece - Pay Less Super Markets
AUDIOPIPE TXX-BDC2-12 High Performance Subwoofer
2 x Audiopipe TXX-BDC4-12 12" 12 inch Dual 4-ohm Quad Stack Car Audio Subwoofer | eBay
Amazon.com: AudioPipe TXX-BDC4-12 12 Inch 2,200 Watt High Performance Powerful 4 Ohm DVC Vehicle Car Audio Subwoofer Speaker System, Black (2 Pack)