FiiO Olympus E10 USB Decoder Headphone Amplifier (3.5 mm Stereo Jack Black) (Electronics)
The small FiiO E10 comes with me to use as a headphone amp for my AKG K612 PRO. I can only say, the sound is really excellent. Whether YouTube videos or CD playback on my Dell laptop, the sound is clear, dynamic and neutral. I can not imagine that it