I am new to the forum. Just purchased a new set of UE4000's , not the fanciest on ear phones but got a great deal and I think they sound pretty good, as good if not better than my old Sennheiser PX100's. Have been doing some research on mini headphone amps, have come across all the usual suspects, FiiO, Nuforce, Electric Avenues etc. However I came across an amp made by Kokkia, claiming to be a mini-amp, splitter, looks good and you still retain the use of your inline headphone controls. Anyone have any first hand experience with this product, there are no reviews or even customer comments on Amazon for this product. Hope someone can help.