I hesitated before acquiring the DAC which is very beautiful indeed. I have read the tests and even if reports were glowing, it did not appear as the best moment of the DAC. I still cracked according to its multiple possibilities: gain adjustment, volume, tone. It's pretty rare on this type of equipment to be it said. At first listen by connecting it to the exit écpouteur PC, really no difference with or without it. After downloading and WASAPI foobar, and use the reading software that bypass the PC sound card, then the difference means. In short, I am very happy with this purchase.