Amazon.com: ALPHASONIK APP122 Complete 1500 Watts Dual 12" Subwoofers Car Bass Package with Amplifier and Installation Kit Included - 2 Sub Woofers with Grills in Custom Ported Box Loaded Enclosure, Black : Electronics
S6512-44, THUNDER500.1, and Vented Enclosure Bass Pacakge | MTX Audio - Serious About Sound®
DS18 ZR112LD-PKG Bass Package 12" Subwoofer In a Ported Box With Ampli
Amazon.com: DS18 SB12A 12 Inches Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in
Planet Audio 12 in. 1800-Watt Car Audio Subwoofers (4-Pack) and Dual 12 in. Vented Sub Box 4 x AC12D + QBASS12 - The Home Depot
Alpine Bass Package MRP-M450 mono amplifier Two SWE-1242 12" subwoofers Q-Logic subwoofer box at Crutchfield
DS18 ZR212LD-PKG Bass Package 2 x ZR12D4 12" Subwoofers In a Ported Box 3000 Watts with ZR2000.1D Class D 1-Channel Amplifier
2) American Bass XD-1244 1000w 12" Car Subwoofers+Vented Box+Amplifier+Amp Kit - Rockville Audio