Ayon Audio is pleased to introduce the superb audiophile “Sigma” digital/analog converter. The Sigma is also prepared for computer playback and general DSD professional audio use. The single-ended output stage and a differential gain stage are composed of a high performance 6H30 tube per channel. The Sigma DAC features a vastly overrated, high capacity power supply for the analog output stage with tube rectification and an oversized power transformer. The sound is powerful with fantastic bass performance, super dynamic, airy, detailed and holographic. The Sigma offers an outstanding price/performance and value.