Is it possible to play sound simultaneously out of the analog and digital out sound ports?

[FPSguy]

I have a Chaintech VNF3-250, but I could put in a PCI sound card if necessary. What I want to do is play sound out of the 5.1 analog sound ports and at the same time play the same sound out the digital sound port. Is this possible? What I am trying to accomplish is to have the same sound to go to two different sets of Z-680 speakers in two different rooms.