Got mine Wednesday and have been listening to it for several hours every day through Focal Clears and Shure SE846 through Mango. I started out with the stock amp and am now using AMP8. I am using it from a 400GB Sandisk Extreme SD card. Using the latest firmware update.
This is my first DAP, previously I have mostly reserved my high end listening to my home system through speakers or headphones with an Auralic Taurus MKII. I've been into mid-fi and hi-fi audio for a long time, over 20 years.
I have to say I am absolutely floored with the audio quality coming from DX220. It is truly amazing! Very musical and extremely enjoyable. The stock amp is surprisingly great both through the 2.5mm and SE outputs. If that was all there was I would be very happy. I am also trying AMP8. It's new so needs some burn in but so far so good. Fantastic bass, beautiful mids and vocals, trebel that is never too harsh, just jaw dropping all around. Kudos to iBasso!
@Paul - iBasso I did notice a few little software issues that could be improved:
1. I have my artwork embedded in .M4A ALAC files ripped with iTunes and noticed a few bugs. Artwork bigger than a few MB does not display. I don't know exactly where the cutoff is but some of the artwork I got online was 3 MB and it would not display. I found a smaller version and it displayed fine. No biggie.
2. If I have artwork that displays fine but I want to replace it for some reason, I can't figure out how to do it. I tried replacing th embedded the artwork but the old artwork still displayed. I then deleted the whole album and replaced it with new artwork embedded but Mango still displays the original artwork. It seems like once I get a cover to display I can't replace it.
3. This is the biggest UI need in my opinion, the Artist category needs to display each of the albums from an artist. Currently it display all the songs from an artist and does not show a substructure divided by albums. I would be very grateful to see this feature added.
Those issues aside, this thing is amazing and I absolutely love it.