Loaded Enclosure: 6.5" Audio Ace Subwoofer + Tru Spec 6.5" Subwoofer enclosure - GP Car Audio
Amazon.com: DS18 SQ2 Complete 7-Piece Sound Quality 3 -Way Component Set with Slim Amplified Subwoofer with OFC Installation Kit Included - Full Range Sound Quality Combo with Bass, Mids, and Highs : Electronics
COMBO DEAL: Dual Machete MF 8" Subwoofer + Tru Spec Enclosure - GP Car Audio