Features: Rockville SDD65 Vented Subwoofer Enclosure Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs! 1" USA Face & ¾” Heavy Duty MDF Construction Machine precision cut mounting holes Top of the line Glue for extra durable adhesion High quality GOLD spring loaded terminals Designed, tested, and engineered to work with Sundown SA6.5SW D2/D4 and Rockville W65K9 D4/D2 Subwoofers. Enclosure Measurements: Type of Enclosure: Dual Vented Enclosure Sub Size: 6.5" Dimensions in Inches: 17.5" L x 19" W x 7.5 H" Top and Bottom Depth: 17.5" Mounting Depth: 14.0” Gross Volume Per Sub (Measurement for the outer dimensions of the box): 1.2 Cubic Feet Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 0.89 Cubic Feet Hole Cutout: 5.925” Tuning Freq: 40 Hz
