S.M.S.L SU-1: THE ULTIMATE DESKTOP DAC FOR HIGH-RESOLUTION AUDIO AND MQA DECODING: The S.M.S.L SU-1 is a compact and powerful desktop DAC (Digital-to-Analog Converter) that delivers exceptional audio quality with MQA technology. It features the AK4493S DAC chipset and the XMOS XU-316 USB processor for precise high-resolution audio decoding. The SU-1 supports Hi-Res PCM, DSD, and MQA audio signals, offering a range of connectivity options including USB, optical, and coaxial. Designed for audiophiles, it ensures seamless MQA decoding and an immersive listening experience, making it an excellent upgrade for your audio setup.