Although this device is itemized as digital-to-analog converter in the documentation, and a full-sized, it has a first class telephone amplifier, borrowed from the specialized amplifier - Luxman P-200. Therefore, in the face of DA-200 you receive two, or rather three devices in one - the converter, designed for the work with both traditional digital inputs and USB, the linear pre-amplifier with the simplest selector and the amplifier for stereo phones. Due to this functionality the price ceases to seem too high.