I recently created a rough but usable Home Assistant integration for the Klipsch Cinema 800 sound bar after reverse-engineering a firmware image and figuring out the unauthenticated web API it presents. The integration provides remote control for most of the sound bar functionality and is usually a bit more responsive than using the Klipsch Connect app.
It can be installed via HACS; simply search for the Klipsch Cinema integration. From there add a new device using the Klipsch Cinema integration and type in the IP of your sound bar.
I’m aware that this sound bar gets a bit of a mixed reception but I’ve found it very reliable to date and one of the better sounding models at the time I bought it.
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