I agree on Eversolo, and although I’d definitely give the Icon at least 150 hours to burn in I think what you’re running into is that a combo DAC/streamer at that price point has limitations. With your budget I’ll reiterate that I’d go with a separate DAC and streamer, and this Zen is still available and if it doesn’t work out you could easily sell it for about what you paid so very little risk.
https://www.usaudiomart.com/details/650163113-innuos-zen-mk3-2tb/
For a DAC you might wanna contact member audioman58 about a Pontus 15th as he’s a Denafrips dealer and may be able to work something out with you for a demo and a possible discount.