How to improve Jitter issue via USB/ETHERNET ?

[ogs]

I did upgrade to 1.4, but when I connected it I also started using the USPCB from Uptone. The combination sounded very good and improved a great deal with some break in. I've actually not tried the 1.4 separately long enough to form an opinion on it. I was without the mR for about a week while it was upgraded so it is a bit difficult to know how much better it was after. By starting to use the USPCB immediately I also destroyed all chances to know how the 1.4 performed vs the 1.3