What is "dock input A"?
Do you, by chance, have a copy of ASIO4All lurking on your machine? If so, uninstall it. It will interfere with the native ASIO drivers for the E-MU.
Do you have the most recent updates for Patchmix and E-MU ASIO drivers?
The E-MU will not send audio to the speaker port on your computer. Your speakers must be connected to the outputs of the E-MU card.
Have you done anything with Patchmix(the E-MU control interface)?
It can be a bit tricky to set up, but it is vastly superior to the Realtec, and is worth the effort.
Once you have it set up, you don't really need to mess with it.