Rocketfish 24' In-Wall Subwoofer Cable RF-G1215 Compatible with most surround sound systems For wide-ranging compatibility. Sends audio signals through subwoofer jacks For reliable signal strength, from a subwoofer to an A/V receiver or amplifier. 24K gold-plated connectors For enhanced signal transfer and corrosion resistance. In-wall rated For flexible installation options. 24' cable To easily connect your devices.