One thing I noticed is that I can now go for much longer listening periods before I tire of the detail the SR80s provide. Usually I need to rest my ears after about an hour or so, and I'm not talking about ear splitting volumes here - comfortable volumes and music with wide dynamic range.
I think I went for about 4, 5 hours - not all at a go of course, one needs to answer the call of nature ever so often - before I had to take it off as it was getting to me. I'd even switched over to music that usually fatigued my ears and those went through fine. So what? No idea. Not only that, I found the bass very punchy and strong, not sure if it's improved by the recable, or my ears too used to the lack of bass on the SE215s (or, the cable rolling off the highs; hence enhancing the bass). In any case, very pleased to have my SR80s back as my constant companion.