18SDXZSV Black Carpeted Atrend 18" Single Subwoofer Ported Box (Unloaded Enclosure) 

• Proudly U.S.A. Built Enclosure for Sundown X & Z Series Subwoofers
• Leap simulated, tested, and approved
• Performance, power & style delivering subwoofer specific optimization
• Black carpet w/ Extra Brace and Polyfill
• Completely miter and dado panels
• Silver spring loaded terminal cups
• Premium carpeted finish
• Glued and braced with fasteners