3X ES9018K2M HIFI USB DAC — 32Bit 384KHz DSD Support for Power Amplifier & Home Theater

High-performance USB DAC board built around three ES9018K2M decoding chips from an American manufacturer. The USB decoder supports 24bit 96kHz input, while each ES9018K2M handles up to 32bit 384kHz and DSD formats. Audio performance: DNR: 127dB; low distortion +N 120dB. Power supply mode: USB power supply. To minimize interference the design uses multiple LDO regulators, separates digital and analog ground lines, and reduces cross-circuit noise. The analog stage runs from positive and negative rails and employs three op amps: two TI NE5532 units for I/V conversion and low-pass filtering, and one TI TL072 for differential-to-single-ended conversion at the op amp output. Zhengling 's socket is fitted for reliable contact and makes swapping different op amp styles easy for enthusiasts.