Every Tru Spec enclosure is computer designed, CNC cut, and assembled inhouse at GPcarAudio. This Tru Spec single 8 subwoofer enclosure is 0.65 cubic feet AFTER displacements including a displacement of 0.08 cuft per woofer.The internal volume and port area of this enclosure is versatile to most 8" subwoofers available on the market as long as your cutout is 7.45" or less, We do a 35hz tune which will give you a wide musical playable bandwidth while still being able to hit the lows nicely. This will Tru ly be one of the best sounding prefabs you will find. TRU SPEC PREFAB DUAL 8 with double flush baffle. Width × Height × Depth.
20.00" × 10.50" × 11.26. Also fits the following 8 Subwoofers and are close to recommended specifications.DC Audio M3 8 Subwoofer.