APBX 8 R - Audison - Car Audio Amplifiers, Speakers, Processors
Alpine S-DB8V-TRK Halo Series 8" ported dual subwoofer enclosure with two 8" S-Series subwoofers at Crutchfield
0.80 ft³ @ 34Hz Ported 3/4" MDF SQ/SPL Enclosure Box for Single 8" Car Subwoofer | eBay
Amazon.com: Atrend 8 inch Vented Enclosure Carpeted Car Subwoofer Speaker Box - Improves Audio Quality, Sound and Bass - High Grade MDF Construction with Nickel Finish Speaker Terminal - Black : Electronics
Skar Audio RNAB08KTHSCJN skar audio sk8tbv single 8" 400 watt max power vented subwoofer enclosure bass tube
Amazon.com: QPower QBOMB8V Dual 8 Inch Vented Port Subwoofer Sub Box with Bedliner Spray : Electronics