The greatness of the SU-1 compact desktop DAC (digital-to-analog converter) actually resides within. The friendly-priced D/A converter supports MQA and MQA-CD formats and uses a 3rd generation XMOS XU-316 chip that, together with the AKM AK4493S DAC, can achieve distortion of less than 0.00013%. PCM 32bit/768kHz and decodes DSD512, compatible with Windows, Linux, Android, Mac OS and iOS via USB Type-C input. Built into a small aluminum alloy chassis, the SU-1 is a convincing desktop audio device despite its size.