Sonos Beam (Gen 1 & Gen 2). Sonos Amp (Gen 2). Specifically designed for Sonos soundbars listed above. Not compatible with Sonos Ray, One, Five, or non-Sonos devices. Designed to bridge the gap between older TVs with TOSLINK Optical Out and Sonos devices that require HDMI ARC/eARC input, this adapter provides a seamless, lossless digital audio pathway.
eBay