Amazon.com: Bbox Single 10 Inch Subwoofer Sealed Enclosure - Car Subwoofer Box & Enclosures - Premium Subwoofer Box Improves Audio Quality, Sound & Bass - Red & Black Spring Terminals - Charcoal : Electronics
Tru Spec Back Vented Prefab Three Up Port 10" Subwoofer Enclosure - Walmart.com
TRU SPEC Prefab Dual 10" Subwoofer Enclosure Sundown SA 10v2 - GP Car Audio
How to build a subwoofer box
SK1X12V | Single 12" Ported Universal Fit Subwoofer Box | Skar Audio
First Subwoofer box I ever built. $0 budget just using scraps around the shop. Boss told me not to build a box it's cheaper to buy a prefab, and I took that