I'm noticing an intermittent static noise in the left channel when streaming Tidal or just even in the app, no music playing. Same goes for Tidal via UAPP. Seems anything but a static image on the screen will create this noise as well.
I would say it sounds identical to what a dirty pot sounds like. That same scratchy noise but very, very quiet. Can't hear it with music playing save for extremely quite passages. It's extra bad (read: continuous, same volume though) after pushing play while waiting for track to play. I can at least say this is not firmware related having tried that.
Seems this person on Ebay was equally as thrilled:
1. Wifi Audio Interference - One of the first things I did when I got my DX200 was to install TIDAL. A lossless music streaming service on a DAP of this caliber was just a no-brainer, but I was immediately frustrated. While listening, I quickly noticed intermittent static in the left ear. I thought it was a short in my headphones until I realized that it didn't happen when in MangoOS mode. At this point, I thought it was just a TIDAL issue, but then I started using the DX200 to browse the internet one day while listening and immediately noticed that downloading data cause the issue. Loading any amount of data over wifi will cause the interference. Turn off the wifi and it goes away. The worst part about this bug is that I doubt this is fixable with a firmware update. My guess would be that this is a hardware design issue, but I would be absolutely thrilled if I was wrong!
@Paul - iBasso any help? This was bought Jan 2018