This is a simple unit, but powerful, extremely accurate, and clean as hell. It might not work for everyone because it is a single USB input, and a single 2.5mm balanced output, but if that works for you then there is no better DAC/Amp combo besides THX tech that is about 5 times as expensive. And to top it all off, its smaller than most USB flash drives, and weighs only 10 grams. To get this kind of clarity and accuracy from such a small and light device, this is perfect for Hi-Fi on the go, but I use one for both my PC and my phone. Note that if you need an unbalanced version, it is in the works right now, and is called the 9038D. I dont know when it will come out as of the time of writing this review (Jan. 2020), but my headphones and IEMs are balanced, so this device works for me. In conclusion, you might need something more complex than this, with more inputs, outputs, and features, but if you want a simple DAC/Amp that is like an extension of your headphone wire, then get this!