Specification AssemblyInstructions : Included AudioDriverSize : 10 inches AudioDriverType : dynamic_driver AudioOutputMode : Stereo Brand : Subthump BulletPoint : If you have any questions feel free to ask. BulletPoint1 : Fits: 2019-2024 GM 4 Door Crew Cab Trucks BulletPoint2 : Fits Under Rear Seat and Subs Fire Down, Must remove storage tray if equipped BulletPoint3 : Mounting Depth: 7", Speaker Holes: 11.125" BulletPoint4 : Volume Per Chamber: 1.1 cu.ft., Sealed Box, Separated Chambers BulletPoint5 : Finish: Charcoal Gray Carpet, Speaker terminals installed CompatibleWithVehicleType : Polaris ConnectivityTechnology1 : RCA ConnectivityTechnology2 : XLR ControlMethod : touch ExternallyAssignedProductIdentifier1 : 0721093782252 ExternallyAssignedProductIdentifier2 : 721093782252 IncludedComponents : Grill, Stainless Mounting Hardware, Installation Instructions IsWaterproof : FALSE ItemName : 2019-2020 Silverado/Sierra New Body Crew Cab Dual 12 Downfire Sub Box by Subthump ItemPackageDimensions_Height : 14 inches ItemPackageDimensions_Length : 53 inches ItemPackageDimensions_Width : 17 inches ItemPackageQuantity : 1 ItemTypeKeyword : vehicle-subwoofer-boxes Manufacturer : Subthump ModelName : XP 1000 ModelNumber : CRB19-212 CG MountingType : Door Mount NumberOfBoxes : 1 PartNumber : CRB19-212 CG PowerSourceType : Corded Electric ProductDescription : Made from heavy grade MDF, our Dual 12 Downfire box for the 2019-2020 GM Crew Cab is a perfect fit in your truck and will give you that heavy bass you've been looking for. Large enough to house some really deep 12s, this box is a beast and will belt out massive bass. Comes with gray carpet and features pre-installed screw in type terminal cups, not the cheap pop in kind most chinese boxes have. This box is built by us in the USA, not mass produced by chinese. We take pride in our work and it will show when you crank up your tunes. Don't settle for anything less than a Subthump box. Please note that due to speaker variability across the industry, Subthump takes no responsibility for subwoofers that do not fit this cabinet. ProductSiteLaunchDate : 2016-06-17T07:00:00.000Z RecommendedUsesForProduct : door SpeakerSize : 10 inches SpeakerType : Subwoofer System SupplierDeclaredDgHzRegulation : not_applicable SurroundSoundChannelConfiguration : 2.0 UnitCount : 2 UnspscCode : 52161600 WarrantyType : Limited