Check the listing for details. TRU SPEC Prefab Single 10" Subwoofer Enclosure Box Sundown SA 10v2. Condition: New. Listed at 159.99 USD. ***This is generally a same to next day shipping item. Currently due to high order volumes, it may take 2 to 3 business days prior to shipping.***Tru Spec Prefabricated enclosures are simple, straight to the point, subwoofer specific enclosures dialed in precisely to manufacturer's specifications after displacements. These subwoofer specific enclosures will be versatile to many other subwoofers as well, so you do not have to use the noted driver on the enclosure, just be sure and double check your cutout.TRU SPEC PREFAB SINGLE 10" : Sundown SA-10" with double flush baffleMaterial: 0.75" MDF Box External DimensionsWidth × Height × Depth20.00" × 12.50" × 13.90"Material Thickness0.75"Net Internal Volume1.00 ft3Tuning Frequency35 HzPort Area15.00 inch2 Cutout Diameter: 9.3"Flush Trim Diameter: 11.5" Also fits the following 8" Subwoofers and are close to recommended specifications:DC Audio Level 1 10" (this enclosure is spot on to DC's suggested specs after displacements.)CT Sounds Strato 10" SubwooferCT Sounds OZONE 10" Subwoofoer CT SOUNDS Meso 10" SubwooferSKAR IX 10" SubwooferSKAR VD 10" SubwooferAudiofrog GB10 10" SubwooferMassive Audio GTX 10" SubwooferMassive Audio MMA 10" Subwoofer