Currently I have an AK1 and I hate it because the plugs are so ****. This has been happening for a couple of years and tired of having to wiggle the headphone cable until it sounds OK again. As far as AK1 replacement goes the one that I liked the most that i've researched is the 6i6 by Focusrite. I can connect my Adam monitors there, put my DT 770 for night production, and have on the other headphone plug some regular earbuds for youtube viewing and and so on. What other similar DACs can you recommend? Budget is below 500€ I don't need anything insanely fancy, I think it's a waste of money tbh, i've got pretty far with the AK1 and a ****ty studio, but now it's time to upgrade the DAC. Btw the DT770 is the manufaktur one when they used to let you customize it, it's the 600 ohm version. The AK1 drives it really well, sound is crisp and clean, loudness all you would ever need etc. The AK1 was surprisingly good sound wise, too bad built quality size it seems like a toy.