I have a receiver with an audio range of 20Hz-100KHz driving JBL 4412 studio monitors. I hooked up a Chromecast Audio via an optical connection and the sound of Hi-Res recordings (96KHz 24 Bit) was outstanding. I ordered a DigiOne Signature player because my Chromecast Audio skipped constantly and I couldn’t update the firmware. I restarted, reset, and rebooted it many times attempting to force a firmware update - nothing worked. Weeks later I turned it on and it was running the latest firmware, which almost completely eliminates audio skips.
I hooked both transports up to the receiver, sent the same Hi-Res song to both of them, and did an A-B test by switching inputs on the receiver. I could barely hear a difference sitting in the sweet spot with my eyes closed concentrating with all my might.
For the first time in my life the speakers are the limited factor in my hi-fi system.