Leopanda
New Head-Fier
I had a chance to try some USB decrapifier for the R2R-11 a few days ago (Jitterbug, Wyrd, iPurifier2), they make so little impact it was not worth it at all. I'd say if you want an obvious sonic improvement, just go for Eitr. Go big or go home.
Yeah, I'm kinda happy with what I have. So I'll better aim at buying a new pair of headphones for office and outside use, like meze 99 or so.
Just thought that if such a little thing could do a noticeable signal improvement then it's an easy buy.