Slot Port w/ Floor Notch - NSWUS | caraudiofabrication
Custom Truck Sub Box 6 - 6.5" | Down4SoundShop.com
Dual 6.5 or 8" Dual Custom Sub Boxes with Kerf | Down4SoundShop.com
6.5 inch Subwoofer Boxes
One Pair | 6.5 Inch Full range Hi-Fi Speaker Driver | Bakelite Cone | Superb Mid | M6 - Lii Audio, unique speaker, amplfier, quality and cost-saving parts for HiFi DIY
Down 4 Sound - Quad 6.5" or 8" Custom Sub Boxes with Kerf