This TV should work well with a Sonos soundbar. I have my Sony TV connected to a different brand soundbar, but I'm familiar with how to connect soundbars with TVs. I checked Sonos literature online. It looks like it says both Sonos Soundbars support an Audio Return Channel (ARC) connection. The webpage could be more clear in this regard (no wiring diagrams), but ARC is mentioned, so it's logical to suppose ARC is supported. I have the 85 inch Sony XBR-85X900H, but this should apply to any size "X900H" Sony TV. Sony designates HDMI 3 on this TV as as "ARC". You should connect an HDMI cable from the cable box (or your primary video source) to either HDMI 1, 2 or 4 on the Sony TV. Then connect a second HDMI cable between the Sony TV's HDMI 3 (ARC) jack to the HDMI jack on the Sonos soundbar. You will have two remaining HDMI inputs on the Sony TV for direct connection of two other HDMI-equipped video sources. The picture shows my connection scheme, which has video sources connected to the TV's HDMI 2 and HDMI 4 jacks. I have a soundbar connected using the Sony TV's optical digital out.
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