From what I see, when you use BT headphones with the ATV4, the speaker output is muted and that's it.
Obviously if you connect headphones to other outputs (receivers, TV), it's a different story. I have a headphone adapter connected to the audio out on my TV and others can listen or not (mute TV).
Using the built in ATV4 functionality, I believe there's only one option: headphones or speaker.
Thanks, that's what I suspected. Do you know if you can connect a second pair of bluetooth headphones simultaneously or a pair of headphones and a bluetooth soundbar?
I'm here looking for options to see if I can upgrade, as my current setup involves using the optical audio out, which ATV4 doesn't have any more.