Thx Mercutio, my primary reason for the expensive speakers is I use them with my Xi-Fi card for music creation on my PC, and they are just sublime.
The Xbox is secondary, I was just stumped on how to connect the RCA connectors to it. I've had a look for the DDTS-100, and they are like rocking horse ***** which I knew but maybe some ingenuis person here may have had another solution.