Anybody got this to work? Alchemy picks up GOG's install automatically, but either default or manually set, the EAX options in the installer remain greyed out...

If you're running a X-Fi, then ALchemy will only work properly using Game mode. You can tell if ALchemy is running properly by viewing the dsoundlog.txt file where ever your game's EXE is located.

You need to install EAX unified to get it to work.