And what are your impressions? 
In awhile, perhaps, am going for HE6 audition
Dang, shop was closed, well got to audition Sony XB-4 which was 1/3 the price of the K3003 with quad BA drivers, which has a good balance sound, the K3003 was "exciting" to audition, given the prat factor difference due to the dynamic driver inclusion, never to the point of being boomy or piercing, a very smooth sounding IEM, not harsh at all, very forgiving but still managed to present most details, it did have a lush sound similar to the K340 with better mids, finally the price tag, its in my opinion too steep, being an iem it couldn't hold a stage larger than a fullsize or perhaps W4, IE8/80 or the Sony, it was mostly restricted in the head. Built quality was superb, shells were like solid bullets, flanges were comfortable and carried the weight well. I would rate this quite high for SQ and build, but a low for the price, It does seem that the trend is towards high price to elevate interest mainly for its exclusivity. I tried them with the neutral nozzles.