Pre-Sale Musician Draco R2R DAC HiFi Entry-Level Decoder USB/ I2S/ AES/Opt/Coax Input XLR/RCA Output Home Audio Desktop USB DAC Decoder (Silver). Features : Pre-sale【R2R Array DAC True Balance】R-2R network control decoding linear error, high decoding speed, low digital noise, not only to ensure low distortion of the audio signal, but also to ensure very low background noise music.. 【Self-Developed Technology】Make the sound more outstanding. Using self-developed and designed digital filters, which can greatly increase dynamic contrast, analysis, and more natural and delicate timbre, etc.. 【Multiple Ports & Multiple Options】DRACO has a complete digital audio input interface that supports high-definition audio decoding and playback output. The digital input is equipped with optical, USB, I2S, AES Balance, and Coaxial . It can meet the needs of different people for the use of equipment.. 【Simple Design Concept】The simple design makes the signal circuit reach a more ideal state, and the sense of hearing is more clear and balanced than the traditional design.. 【Tailored for The Sound & Packaged Linear Power Supply】Using the main control ALTERA high-efficiency chip, the audio signal transmission is not distorted and the sound quality can reach the HIFI standard hardware; Power supply adopts a thick metal package and is equipped with an O-core transformer. The linear regulator that can effectively isolate the digital and analog parts of the multi-level power supply can ensure low noise and stable power supply voltage for the DAC.