[Frank Kruse]

Any BD player with analogue outs will do. (just do a search on you favourite online store). Or buy a HDMI de-embedder with 7.1 analogue outs.

And then you just need to adapt from RCA to Sub-D (probably via XLR unless you want to solder it yourself)

example:
https://www.thomann.de/de/cae_subd_25polxlrmale.htm

Just make sure you pick the right pin layout for your desk. (Yamaha or Tascam, your manual will know).