I am hearing an improvement over the 5998's but so far its not as big as I expected.
I will listen to the GEC's everyday for a week and the go back to the 5998's and see if I notice a big drop in quality.
If it anything like going from RCA's to 5998's I should notice the difference more over time.
Yes, The difference is not big. I feel that, for vocal genres GEC is better suited for HD 800 , for EDM TS is better.