measured the Bel Canto e1X DAC with my Audio Precision SYS2722 system. Looking first at the digital inputs, the AES3 and coaxial S/PDIF inputs accepted data sampled at all rates up to 192kHz; TosLink was restricted to 96kHz data. Apple’s AudioMIDI utility revealed that the e1X accepted 24-bit integer data via USB sampled at all rates from 44.1kHz to 192kHz. (The print manual says 384kHz.) Apple’s USB Prober app identified the Bel Canto as “Bel Canto Hi-Res 2” from “Bel Canto” and the USB port operated in the optimal isochronous asynchronous mode.
