Extendable Soundbar TV Mount Designed for Sonos Arc Sound bar
HDfury Arcana, eARC adapter for SONOS and eARC or ARC sound system | HDFury.com | Connect and Fix everything in HDMI
Amazon.com: Sanus Soundbar TV Mount Designed for Sonos Arc Sound bar - Height & Depth Adjustable for Dolby Atmos - Universal Compatibility Other TV Mounts - Easy Assembly -OSSATM : Electronics
SONOS HDMI ARC TO OPTICAL ADAPTOR | Simply Sound and Vision