OK I just gave these 10hrs of burn-in and the bass has settled down a smidge and the mids have become possibly a bit warmer while the treble is pretty much the same. For the most part though they have stayed true to the initial signature. I imagine there will be subtle adjustments to the sound but this will remain the primary signature of the IEM.
So the signature I am hearing is a bass / mid oriented signature with OK treble that rolls off and never get uncomfortable, they are VERY non-fatiguing. It is not my preferred signature but I am enjoying it anyway
. This is all un-equalized which is how I prefer to listen to my music. BUT I decided to try turning on my EQ on my Nokia 920 phone and set it to increase treble and WOW and WOW did this IEM ever respond well to that setting! This is one IEM I will break my no-EQ rule for. They simply sound amazing with added treble.
One this I was thinking about though and I will confirm when I have some time, hopefully later today or tomorrow. Will these be more warm and possibly too warm on an idevice? My Nokia and my Desktop DAC/AMP both are on the brighter side or colder sounding than my old iphone 4 so I do wonder and will get back with some results as soon as I can. For those who already own the ADV, what source/amp are you using and can any of you try different sources?