The DC04PRO combines many well selected parts and advanced technologies, such as dual CS43131 flagship DACs, dual RT6863 high current output OPAMPs, synchronous DC-DC converter, ultra-low noise LDO, FPGA, KDS Femto second oscillator, multi-functional APP, pentaconn 4.4mm balanced socket, CNC aluminum case, and tempered glass panels. All of these are forged into a USB DAC & AMP with high output power, high current output, dual output interfaces, interchangeable cables, excellent power consumption control, and outstanding specs. The Cirrus Logic flagship DAC CS43131 provides outstanding performance and excellent sound. With the ultra-low noise LDO that has a 100dB power supply noise rejection ratio to ensure the power purity for the DAC chips, results in an amazing sound quality with a superb black background for the DC04Pro.