JBL – L10cs 10″ 250W Powered Subwoofer – Black Walnut

The L10cs’ 10-inch, down-firing polycellulose white cone woofer is driven by an advanced 250W RMS (500W dynamic) built-in amplifier. Additional features include auto on/off, adjustable crossover, phase, and volume, and a bass reflex system with rear-firing tuned ports.