The PSD-A1 is a flagship-grade DAC designed for true audiophiles. Built around dual ES9038PRO chips, it supports PCM and DSD formats via coaxial, optical, USB, Bluetooth, and I2S inputs. Galvanic isolation on USB and I2S eliminates noise at the source, while a 100MHz OCXO master clock ensures precise timing. The I/V stage uses Burson V6 Classic op-amps for a rich, analog sound. Power is supplied by dual S-rate batteries (digitally and analog circuits separated) and ten ultra-low-noise LT3045 regulators, with an advanced LT8582+LT3045+LT3094 combo for the I/V section. The PSD-A1 is the cornerstone of high-fidelity network audio