JBL BassPro SL 2 Compact powered subwoofer: 125 watts and an 8" sub at Crutchfield
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 Simply Cinema SUB125A Home Theater Subwoofer 250W | Reverb
Amazon.com: JBL SUBBP12AM - 450 Watts (150W RMS) 12” Amplified 12 in. Ported Subwoofer with Sub Level Control and Distortion Free Bass with Gravity Magnet Phone Holder Bundle : Electronics
JBL BassPro SL2 8" 125 Watts RMS Power Self-Powered Low Profile Underseat Car Audio Subwoofer Bundle Combo with 2x 6.5" 330 Watts Peak Power 2-Way Vehicle Component Speakers and Amp Wiring Kit -