Used daily with Sennheiser HD485/Foobar. Good resolution, bit on the warmer side. Perform better in a facility than with kids (Arcam FMJ18 + MA Silver 2).
Good sound for its size, and given that it is powered through USB. However, there are better choices about USB operation is not required (as it was in my case).
Very small and well built, and it delivers a warm, full sound together with Denon D600! For 2000kr I can not say that it is a cleanly purchase, but in terms of its size, audio quality and so was the spot for me.
Hot and nice sound. Perfect for AKG K701, may be a bit too with hoisted closed lurking example, AKG K518, feels a little loudness then, but it depends on the headphones and not rPacen.