Phantoms and home cinema

[eibet]

Hello.

Any opinions on how this would work in reality. Digital signal to surround receiver. analog signal from front speakers rca output on receiver to ADC. Digital signal from adc to Phantom/Dialog.
Rear and center speaker signal from receiver speaker output to rear and center speaker. The receiver has a microphone for checking delay on all speakers connected. Do you think this could work?

Would be fun to try a surround setup using the phantoms and I have a receiver lying around my house.