Multi-Zone Amp Board

I’ve installed volumio as a mutli-zone audio system for a few of my clients and they love i, but the hifi berry 60W amp appears to be on the weak side for my own personal tastes. And its annoying I have to use multiple Pi’s for each zone.

After discussing with a few people I deal with I’m going to look into designing my own multi-zone board that I plug a Pi 4 into running in a headless option, but my question is if i use say 4 I2S DAC’s on the board will volumio see all 4 DAC’s and treat them as 4 individual zones?

If this is the case I will get to work on my custom multi zone amp.