Which IEMs/headphones are you pairing the AK120 and DX90 with? I have the AK120 with SE846 and debating whether to pick up the DX90, and how much of an impact/improvement there may be with the lower impedance of the DX90.
Looks like UI functionality and usability between the AK120 and DX90 is on par with each other from the reviews and product info I've seen, what are your thoughts?
The UI in AK120 still a bit smoother than Dx90. But sound wise, the dx90 win. Not by a large margin, but still sound better to my ear.
Before I receive my dx90, I love the sound from the AK, but now the AK sound a bit boring.
Of course you have to accept smaller storage and shorter battery life ( which you can buy a spare battery).
Also one things bother me about the AK is, I almost always listen music in shuffle mode, but in the AK it never look to me like it have real shuffle.