High Impact Without Wires The JBL SW10 powered wireless subwoofer adds impactful, deep bass to the JBL LINK BAR to create the ultimate immersive audio experience. Featuring a 10” woofer, tuned bass reflex enclosure and onboard 300watt amplifier, the JBL SW10 delivers rich and thrilling bass without the hassle of wires. In order to provide flexible placement options, JBL has incorporated a downward firing design architecture making room location far less critical. The SW10 is the perfect addon when you are looking for real JBL pro bass.