Amazon.com: JBL BassPro SL2 Active Underseat Car Subwoofer with Built in Amplifier - Under Seat 8'' Subwoofer Car with 125 Watt Power Amplifier : Electronics
Customer Reviews: JBL BassPro Nano Compact powered subwoofer with 6"x8" sub and 100-watt amp at Crutchfield
JBL STAGE 800BA - 8" Ported Powered Active Car Subwoofer 200W Amplified System | eBay