The PA110-SC active subwoofer comes equipped with a heavy-duty 10" driver with an internal crossover. It features a ported enclosure, which is tuned for optimum .kmart.com/ebc-fsd006c-custom-stainless-steel-narrow-band/p-SPM7844424922 kmart.com/oem-third-party-battery-power-charger-for-gateway/p-For serious low-end in a compact format, the Kustom PA112-SC powered subwoofer is rated at 400W peak power output with ¼ in. I/O jacks and volume control. The PA112S is a 200W self-contained powered subwoofer with a 12" bass driver in a tuned, ported cabinet and is the perfect companion for the PA100T.