Could you tell me if your TE-BD21f-pnk have any noticeable hiss? I got the regular TE-BD21f two days ago, still in burn-in stage. I love the overall package but the hiss kills me. Slightly less than L2P 2nd version, but still quite noticeable. If I paid their regular price in Japan (~$150), I won't mind, but I paid $260 here in USA from 3rd party on Amazon, so it's a little bit hard to swallow. Other than that, I would say they're upgrade, non-fatigue version of L2P with less bass, clearer mids, sparkly yet non piercing highs. The bass impact is still there with good texture and decay from the 9mm DD, just not so profound as L2P. Most importantly, the tonality/timbre is accurate to my ears, which is not the case in L2P. Comparing with Aviot te-d01b and Nuarl nt01ax, they sound sightly warmer and thicker, closer to NW07. Their shape is Frankenstein in ears, but very light (about 5g) and extremely comfortable and great isolation. A funny thing is that their nozzles are oval shape, and the stock tips are oval as well both in stem and outer, a first in my IEM collections. Their sound sig is tuned toward main stream music, which surprised me as I excepted they go up along te-d01b. Without the hiss, they're a keeper, though not so wowed as by te-d01b. Now with the hiss, I may still keep them in rotation, considering the difficulty in returning them. The seller delivered them in 2 days from Japan, and responded well with my concerns, sending me an English manual. I'll see if I can stand the hiss later on.