just got my ed16 and, in a word (or two) they are tip sensitive as a mofo. ootb, with the stock starline tips, they were surprisingly balanced/laid back, with uncharacteristically (for kz) forward, pleasant mids, but otherwise bass-shy and mostly underwhelming. switching to foams, which i generally do not prefer, the difference was night-and-day--the bass deepened profoundly, while treble seemed to brighten and show more microdetail, probably because it was presented against the deeper background. as shod thusly, they really are (as otto and others have suggested) sort of a more refined, 9/10 scale variant of the zsr, with a smaller stage and a bit less adrenaline and extension, but more sculpted bass and better coherence. they're not as small as i expected (tho definitely sleeker and more ergonomic than the zsr or zs5/6), but isolation is better than advertised. these cost me $17, which coincidentally was the same price as the beers at the horrible jam-band concert i was forced to attend last week and which will traumatize me forever.