Singxer SU-2Singxer SU 2 Product details: The SU 2 digital interface is a high performance USB digital audio interface newly developed by our team. It uses the latest ARM Cortex M4 as the core microprocessor as the main control of the USB data part. SU 2 adopts the self developed chao low jitter clock system (AS 318B series of ACCUSILICON, ultra low jitter at femtosecond level), large capacity FPGA as the core of Digital audio data processing, and has a standard