Question No sound when playing Blu-ray audio disc through amplifier?

Feb 29, 2020
I'm probably doing something obviously wrong but I'm a bit stumped.

I'm trying to play (for the first time) a Blu-ray audio disc from my Samsung BD-F5100 Blu-ray player through my hi-fi (Marantz amplifier). I've connected the Blu-ray player via a coaxial cable to a digital to analog converter and from there to the amplifier via RCA (?) red and white cables.

However, there is no sound when playing a Blu-ray audio disc. I've tried a CD in the Blu-ray player and that plays fine through the amplifier.

What am I doing wrong? It's probably really obvious but I just can't think.

Any help would be greatly appreciated. Thanks.