JBL BassPro Hub Powered 11" subwoofer enclosure with 200-watt amp — mounts to hub of spare tire at Crutchfield
JBL EON 618 Sub 18" Active-Subwoofer | MUSIC STORE professional
Amazon.com: JBL BassPro SL2 Active Underseat Car Subwoofer with Built in Amplifier - Under Seat 8'' Subwoofer Car with 125 Watt Power Amplifier : Electronics
JBL MPro 418 SP aktiv | music store
MP418SP | JBL Professional Loudspeakers
JBL SRX828SP 2000W Dual 18 inch Powered Subwoofer | Sweetwater