There is the way to add a second i2s decoder Dac? To set in total 4ch of output.

[FAUSTINOCRUZELIS]

I find this repo/web (http://ebrombaugh.studionebula.com/synth/stm32_4chl/index.html) where they implements 4 ch output with 2 pcm5102A boards, or we can take 6ch of Dac channels from stm32F411/04? Maybe adding a external clock.