I recently bought a Sound Blaster X4 for my Sonos Beam Gen 2 to connect it to my gaming PC. I think I've done everything correctly but I'm not getting any output. While fiddling with the settings last night I managed to get sound but turning my PC on today, there's nothing outputting from the Beam.
I connected my PC to the X4 via USB -> X4 to Beam Gen 2 through SPDIF out using the supplied Sonos dongle. I set the default playback to SPDIF Out (Sound Blaster X4). Set up the Beam 2 via the iOS app but didn't connect it to any TVs. Still no sound. What am I doing wrong?