Help Design a Room Correction system for UPnP audio networks using say MinimServer and jPlay

I am looking for ideas to buy/develop/test,... a system for DSP room correction using UPnP. My idea is that the room correction would run in a network player endpoint. The control point and server do not need to know about the room correction system. I am looking to build and test something, ??buy?? something? Then write about it here. I am wide open to ideas, keeping the scope to 2.0 or 2.1 systems. @The Computer Audiophile