Sound like you're wiring up a 60's phone junction cabinet.
I think you are making it much harder than necessary.
Seen all digital signals to your DAC. DAC to Preamp or integrated. Integrated to your speakers.
Preamps with digital output
Dose anyone make a preamp that has not only digital inputs but a digital output.i am looking for a preamp with a phono MC input and at least 2 analog input or just 3 analog inputs then I will use a phono preamp also I need at least 2 digital inputs and 1 digital output along with the normal analog balanced and non balanced rca outputs.can someone out there tell me if anyone makes a hi end preamp that meets my needs thank you Michael.