I recently bought a pair of thinksound on1s to use for digital piano and guitar practice as well as general listening. So far I'm really impressed with the sound and comfort.
The only minor issue is that the stock cords--detachable from the headphones--have a braided type outer covering, which effectively transmit sounds of rubbing against clothing to the headphones. I've been using a longer, more standard cable I had handy which don't exhibit the issue. They're also a bit longer, handy for playing the digital piano.
Anyway, it's more than I've ever spent on headphones (twice as much as my previous Grado SR-60s--but I don't think I've owned anything capable of that much refinement in sound. And it's a rather nice design.
