This is a very clean digital audio -reference- source for people who want to be absolutely sure that playback is bit-perfect and noise and jitter are reduced to lowest practical levels. The player supports both, standard S/PDIF and low jitter ElectroTos protocols, so it can be used with existing DACs (S/PDIF protocol) or our new Fractal DAC (ElectroTos low jitter protocol). This player is based on a single, low noise processor that produces only a fraction of noise compared to PC, laptop, RPI or streamer. Local system clock (24 MHz) and 4 separate audio clocks (22.5792MHz, 24.576 MHz, 45.1584MHz and 49.152 MHz) ensure lowest practical jitter levels. Special synchroniser / driver circuit ensures that the output jitter does not exceed audio clock jitter. ElectroTos completely insulates the PC and connected player from the DAC, eliminating ground loop noise. Digital audio WAV files that contain meta data (artwork, text) are stored on a USB memory stick that can be plugged into the player. Up to 99 CDs and up to 99 tracks / CD are supported on each memory stick. The player is connected to a PC through USB, the PC only provides graphical remote control and power. The player is powered by the USB audio source, so no external power supply is required. Power supply filters inside the player clean up the USB bus power supply to obtain clean supply voltages for the player circuits. The meta data of each new inserted memory stick are automatically extracted once. This meta data is added to the local database on the PC. This enables the included app (Linux, mac OS, Windows) to quickly display and access music albums without communication with the UPL96ETL. During playback there is radio silence on the USB interface, so no noise is generated. The player supports 44.1/16 ... 96/24.
For UPL_remote software see: