Are you using the TV as a source into your system, or are you talking about the TV Speakers?
eARC to HDMI converters
I'm trying to use a new Sony TV with eARC with a pre-ARC Bryston SP3 processor. I think there are devices that take in eARC from the TV and output HDMI to the processor. I've tried two by OREI, but the processor gets no HDMI input. Looking for recommendations.