ES9039SPRO Quad DAC Gustard X30 Network Streaming DAC ES9039SPRO X4 & ES9311Q Chip XMOS216 Airplay 2 DLNA PCM 32bit 768kHz DSD512 MQA DAC D2R Preamp USB/ Coaxial/Optical/AES/Clock/LAN/IIS X2 Input Desktop Balanced DAC HiFi DAC ⭐Synchronized clock implantation technology: reduce device audio clock requirements. ⭐Built-in OCXO constant temperature crystal oscillator, supports 10M clock input, K2, ultra-low noise synthesizer. 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 ⭐USB Sample Rate: DSD512 PCM768K, MQA384K. ⭐Passive analog preamp, R2R relay volume, lossless adjustable with pass-through. Offers multiple inputs/outputs including USB/LAN/Optic/coaxial/AES/IIS inputs, and XLR/RCA output, supporting SD card and MQA decoding. GUSTARD X30 4x ES9039SPRO Streamer Digital to Analog Convertor (DAC) – Audiophile Shop AU ⭐Dual IIS-H Inputs, IIS Line Sequence Adjustable. ⭐Fully balanced, without any conversion., Complete four outputs. * The SD card interface is not supported for use The SD card interface is not supported for use ⭐Supports remote control from 0dBto-90dB. FPGA chips offer self-constructed logic, precise clock control, 2nd PLL Digital shaping, DOP demodulation, and PCM/DSD switching for superior audio quality. GUSTARD DAC-X30 Network Streaming DAC Features: ⭐4xES9039SPRO DAC chips, ES9039SPRO Quad Core. ⭐Multiple IV active parallel connections, analog LPF circuits, Discrete Class A design. GTARD DAC-X30 HiFi Network Streaming DAC ⭐Digital filtering :4 kinds of DSD filters/3 kinds of PCM filters, support NOS mode.