Hello @triplem, welcome to Sonos Community!
I’m assuming HDMI-ARC from the Frame TV box to the AMP via HDMI cable?
You are correct, connecting the Sonos Amp with your Frame TV via and HDMI cable would work.
I should mention though that you won’t get Surround Audio that way. You would need a second Sonos Amp which would connect wireless to the first Sonos Amp for the two back in-ceiling speakers to play Surround Audio.
To explain it better:
- Your current scenario:
- 1 Sonos Amp → 4 in-ceiling speakers → HDMI to Frame TV. Two speakers would play the Front Left while the other two would play the Front Right on a Stereo setup.
- Scenario for Home Theater Surround setup:
- 1 Sonos Amp → 2 front L/R in-ceiling speakers → HDMI to Frame TV
- 1 Sonos Amp → 2 back L/R in-ceiling speakers → wireless connection accomplished via the Sonos App for Surround Audio.
I hope this helps.