Absolute KSB15D 15-Inch Dual Square Hole Subwoofer Enclosure for Kicker Solo-Baric Subwoofer Absolute KSB15D 15" Dual Square Hole Subwoofer Enclosure for Kicker Solo-Baric Subwoofer or other Subwoofers Dual 15" Subwoofer Enclosure High Quality Durable Carpeting for Subwoofer or other Subwoofer