Good luck with the project!
Hey keropi! Your sound card project looks very interesting and I'd like to see this get on IndieGoGo or some other fundraising site if you want to generate some noise (no pun intended) around your project.
I think an awesome addition to your card would be the inclusion of high quality Japanese solid state capacitors and improved filtering, so that the noise floor isn't anything like old Sound Blasters of the day as well as a means to eliminate any ISA bus noise. I realize over SPDIF this is mostly unnecessary, but for those stuck with analog setups, it would be ideal to keep the quality crisp and clean on that front as well.
Would one be able to configure both SBPRO and WSS modes to work at the same time? i.e. I don't have to change modes in a control panel and reboot to toggle between SBPRO and WSS modes.
Retro PC: Intel Pentium III @ 1 GHz, Intel SE440BX-2, 32 GB IDE DOM, 384 MB SDRAM, DVD-ROM, 1.44 MB floppy, Nvidia GeForce 4 Ti 4600 AGP, Creative SoundBlaster AWE64 Gold, Aureal Vortex 2, DreamBlaster S2