Got them yesterday from B&H (last pair). Love them. The single dynamic driver made right. Before I thought hybrids like Dunus 1K and 2K are the best. Fostex easily beat them.
Bass is very deep and refined. Reminds me of Sure 846 rumbling bass.
Mids are forward but not overwhelming other frequencies.
Treble is just right, without any sign of sibilance.
Wide and most important deep sound stage.
Instrument separation and positioning is superb.
Vocals are so intimate and lifelike, especially female.
The ear pieces are very light and basically disappearing while in my ears.
I love the cable, it's light and non micro-phonic.
The only problem, I can't use it while in bed, they do stick out of the ears a lot.
Very well done and none expensive IEMs. The do sound better when they cost.