Allo Boss Dac + Isolator

Ok, I just managed to solve the issue! It was my mistake to remove the Jumper on the Dac, misunderstanding the guide about how to power RP4 and Dac separately!

So changes in the setting below worked for my system.

Device environment variables:
AUDIO_OUTPUT: DAC (Override Auto - Although this might not be nessasry)

Device configuration:
Define DT parameters: “i2c_arm=on”,“spi=on”,“audio=off” (Default was audio on)
Define DT overlays: “allo-boss-dac-pcm512x-audio” (Default was “vc4-fkms-v3d”)

I didn’t need to add BALENA_HOST_CONFIG_dtoverlay as it was suggested in the official guide.

The sound quality is excellent. The only minor issue I have on Airplay is the lag when you change the volume or hit the play. There is a few seconds delay on everything. I don’t know if there is a way to solve this.