Mine just came in yesterday! I got the clearance sale at http://www.lendmeurears.com/product_info.php?products_id=54
Sure it took two weeks to get here from Singapore but it was worth it. I paid roughly the same for these as my AT-M50s (probably 15 more for the GR07 BE) and these are in a competition for what I listen to while traveling.
I have not really owned very many quality IEMs, the Klipsch S4i being the only decent ones Ive ever owned. I will say though that these blow the Klipschs out of the water and are less than twice as expensive.
My main comparison is between M50s and the GR-07 BE, I would say that they are relatively similar but initially it seems as though the GR-07 BEs are winning across the board, not by much, but they have more isolation, better perceived bass response and even a more enjoyable sound stage as far as I am concerned. The M50s are more sibliant than the GR-07 BE at least from what I can tell so far. Comfort wise is kind of a toss up but Id probably take the IEMs.
All of that being said...I still prefer to listen to my AKG k702 anniversary's more than either.
I was doing all of my listening out of my Fostex HP-P1, so perhaps it is just a much better match to the GR-07 BE than the M50s...
They need burning in like you wouldn't believe. For me the GR07 BEs are bit harsh and hard to listen to at first. From what people say they need about 300 hours, I didn't really time my burn in but it sounds about right. Compared to when I first got them, they sound really really good. For me the mids have smoothed out considerably and the sibilance is gone. I'm replacing my UE900s with these and for most stuff I enjoy these more than my mad dogs
Edited by spurxiii - 8/29/13 at 12:51am