measured the CH Precision C1.2 with my Audio Precision SYS2722 system, repeating some measurements with the higher-performance APx500. The external power supply and clock weren’t available for the testing. The C1.2’s coaxial and optical S/PDIF inputs and AES3 input accepted data sampled at all rates up to 192kHz. Apple’s AudioMIDI utility revealed that the C1.2 accepted 16-and 24-bit integer data via USB sampled at all rates from 44.1kHz to 384kHz. Apple’s USB Prober app identified the C1.2 as “CH Precision USB Audio 2.0” from “CH Precision” and indicated that the USB port operated in
MEASUREMENTS
Jan 03, 2023
3 minutes
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