It's designed to deliver deep, satisfying bass on low to moderate power. They use sturdy sealed seam MDF construction, and are upholstered in a durable carpet with an embroidered logo. They're also loaded with subwoofers designed specifically for the enclosure to ensure maximum performance. Composite Pulp Cone Subwoofer w/ EROM Surround. Custom Embroidered DDA Redline Logo.18 x 14 x 8 Top / 13 Base. 458 x 356 x 203 Top / 330 Base. You will be issued a Return Authorization Number. In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product.