S80B 8-12 inch tube core 12V car subwoofer 120W tritone pure bass amplifier board for car - AliExpress
ALPINE SWT-S10 1200w 10" Car Subwoofer in Bass Tube Enclosure+Amplifier+Amp Kit - Rockville Audio
KICKER TB 8" Compact Subwoofer - AudioWorks of Delaware | Turn It On! | Car Alarms - Remote Starters - Audio Systems - Navigation Systems - Multimedia Systems - Custom Car Rims & Tires - On-site Company Fleet Services