Check the listing for details. For 2 8" Sundown X-8 X V.2 V.3 Custom Ported Sub Box Enclosure ~ WHITE INTERIOR. Condition: New. Listed at 389.95 USD. This listing is for a custom ported enclosure for 2 8" Sundown Audio X-8 subwoofers. We use a 4" aeroport to reduce port noise so you get nothing but clean clear bass from your subs. Also, the subs are recessed 3/4" into the box. There is a support brace between the subwoofers and the port tube. All the joints are glued and screwed together to ensure that the box will hold up against the high output of the subwoofer for as long as you need it to. Enclosure Details: - 3/4" MDF Construction - Interior - White (black or red paint can be substituted by request) - Plexiglass - 1/2" thick - 20" x 6" - Port Tube - 4" x 12" aeroport - Cutout Diameter - 7.36" - =Black automotive carpet (Charcoal carpet may be substituted upon request) - Tuned to 32 Hz (adjustable by request) - Exterior Dimensions - 36"(wide) x 15"(deep) x 11.25"(tall) - Net Volume - 2.0 Cubic ft - Roughly 50 lbs - 2 Terminals included - Sealed air tight with liquid nails caulk