WSR (Wireless Subwoofer Receiver) Convert any active subwoofer into a wireless subwoofer with the DALI WSR (Wireless Subwoofer Receiver). PRODUCT DETAILS Truly immersive surround sound is best with a subwoofer. If you already have an active subwoofer you like, the DALI WSR (Wireless Subwoofer Receiver) is just the ticket to integrate it into an EQUI wireless surround system. Simply connect the sub out jack to the subwoofer input and power the WSR from a USB-C power supply. Now your subwoofer is officially a part of your active wireless surround system! DALI WSR Wireless Subwoofer Receiver MANUAL