You may want to try a EP500 with your 800. There would be a slight difference in sound but it may work to even things out for you. I haven't received my new replacement EP800's yet so I don't know for sure. I run my EP500 with my EP800's usually. Since one EP800 is out of commision right now I'm running a 500 / 800 currently. I have not done any critical listening due to time issues. So I'm no help for you right now.
Carry on
Mel

My system