n Use original XMOS XU208. n The resistance adopts the chip resistor with accuracy of ±1%, which ensures a good signal-to-noise ratio of the whole machine. n PCB adopts 1.6mm thick double-sided board, 2.0 ounce copper thickness, full tin-spraying process to ensure good passing performance of large and small currents. PCB quality. n XMOS is the company's most high-end decoder chip, supporting 32BIT 384K n Choose gold-plated USB socket XU208's second-generation XMOS chip has twice the memory of U8, and the calculation speed of 1000MIPS is twice that of U8's 500MIPS The installation size is compatible with the Italian Amanero usb iis digital interface, and the position of the IS2 pin sequence definition is also the same