I have owned both, a few other members messaged me when I sold my dx220, and we agreed about our perceptions of the dx220. IMHO 220 stage is smaller than regular ak380, and sonically inferior in all areas particularly the upper registers, and bass quantity/quality imaging. Sp1000 is technically superior to AK380, so honestly I don’t think it’s an realistic comparison. Dx200 has nice equalization, and you can substantially boost levels high, but even so bass quality wasn’t up to 380 level, and more mid than sub bass.
In all fairness the 1000/380 cost much more, but people were saying the dx200 was better than sp1000 and I owned both at the same time as well, which I didn’t find personally to be true.
I like Ibasso and I owned a dx90 happily for 4-5 years without feeling the need to upgrade, and I’m not bashing the 220, it’s a great dap for the money for sure.
Thanks for your input. Although I ended up replacing my sp1000 with n8, but I still thought sp1000 was excellent sounding device. I just like n8's tube sound. Yeah, when people said dx220 sounds better I just couldn't take it as is..but then again not sure why so many saying it. I am sure some of them are dx pumpers but some may not.