I have been listening to my IE80s for over 10 hours now and while good, these definitely are not as extraordinary as I had hoped.
Some observations:
Very good clarity and detail over almost any music genre
On pop music - sibilance and hiss means I cannot listen for more than 30 minutes in one sitting
On classical and choral - great separation and enveloping sound, nothing I can nitpick about
On dubstep - cannot seem to get the "subwoofer effect" on a lot of the bass tracks; definitely disappointed here because even my PFE132s did better
On metal/hardcore - separation seems to suffer; music is in-your-face and soundstage seems to suffer
On alternative - again plagued by sibilance and soundstage issues
I am aware of burn-in but I'm also wondering if this has more to do with ear tips seal and fit. On the Sensaphonics test, the higher note is unmistakeably louder. Of all the stock tips, the large dual-flange have been the best fit.
Any thoughts or suggestions?