JBL BassPro SL Loaded Subwoofer Enclosure: Enjoy booming bass on your next road trip thanks to a 125W integrated Class D amplifier for balanced high- and low-frequency sounds. Custom electronic circuitry ensures lush audio and a wide range of output levels.
adds a little ump but its not worth it , try another brand or go back to old school systems. It CANNOT hit lows at all , some songs sounds ok , next song i have to turn the three knobs till it sounds good.Completly disapears when you turn up loud. It does not fit under my seat either .2001 s10 extended cab