Best Buy: R&T Enterprises 12" Dual Bandpass Subwoofer Box BB-1212
American Bass XFL-1244 2000w 12" Competition Subwoofer+Vented Sub Box Enclosure - Walmart.com
2 X 15" Soundqubed HDX3 4500 watt Subs Competition Grade Like New With Double Baffled Kerf Ported Enclosure Like New Condition for Sale in Lake Havasu City, AZ - OfferUp
Harmony Audio HA-ML152 Competition Loaded 15" Sub 3200W Slot Vented SPL Sub Box | HA-MONOLITH-21
How to choose a subwoofer box
BLACK 15" SINGLE COMPETITION PORTED SUB BOX
subwoofer box for sale single 12” competition - electronics - by owner - sale - craigslist