Hazey, it might be worth looking at the new panasonic 2018 4K players that will be out in the next month or so.
the 820 has dual HDMI outs for video and audio
Im looking at getting one, as it handles HDR+ content and with the dual outs, i can direct connect to the TV and audio to the AVR.
Bower & Wilkins HTM72 Centre, M1 & PV1 Sub
Samsung 2014 75 inch and Samsung 2018 NU8000 82 inch 4K
QED Speaker Cables and HDMI