^ I think i am hearing some slight changes, i can max out on the volume on my ipods nano without feeling my ears are getting blown out. The bass is a bit less boomy and is tighter which allows the highs and mids to shine more. BUT the highs are still pretty meh with lil' to no sparkle.
There is hope but i ain't gonne lie to myself and expect miracles.
That's a start ! ...but those separate mids and highs carbon nanotube drivers need more working to loosen them up, blast tracks with lots of fast vocals and treble instruments.
I ain't gonna lie either ! ...just so you don't set yourself up for a disappointment, they're not gonna miraculously turn into the end-game iems for you after the extra burning.
The mids on mine are now pretty close to the ckn70's, only lacking slightly in refinement, sub bass are a notch over the ckn70, treble are sometimes at the level of the ckn70 and sometimes missing depending on the source (an amp makes a huge differences here).
I will not deny my bias for the ckn70 here, but even they are far from being my end-game phones.
They will however show improvement in the bass, mids and highs such that the overall sound is more engaging compared to previously.