The DAC-X30 utilizes four ESS ES9039SPRO chips in a balanced architecture of two chips per channel to ensure independent power and grounding for optimal performance Offers multiple inputs/outputs including USB/LAN/Optic/coaxial/AES/IIS inputs, and XLR/RCA output, supporting SD card and MQA decoding. * The SD card interface is not supported for use The DAC-X30 employs a K2 synthesizer and synchronized clock implantation technology to provide a precise clock signal for enhanced sound decoding, utilizing either a local OCXO or an external 10M clock FPGA chips offer self-constructed logic, precise clock control, 2nd PLL Digital shaping, DOP demodulation, and PCM/DSD switching for superior audio quality. Network streaming DAC with Roon/Bridge/UPnP/NAA support. And enhanced sound variations using discrete Class A LPF circuits. The SD card interface is not supported for use