I knew to expect the input circuitry to be quite good at this price point, however I wouldn't recommended purchasing this unless your budget is very limited or you want it purely for the looks. This device gets super noisy after 50% gain, and the output has audible noise as well even sooner without turning the volume up much. Not suitable for low impedance devices at all. Guess it's fair to mention as it was mentioned in many other reviews as well, that the headphones cannot be separated within the device from rear outputs, as that connector is purely for monitoring the backside output, NOT a separate headphone output as some believe.