I'm pretty sure the snapdragon chipset on the DX300 supports Dolby Atmos, maybe it's a case of waiting for Ibasso to implement. Not in a hurry as I've got a couple of hundred hours of burn in to go!
Switched back to the lower grey/blue upper combo this evening, finding vocals on some tracks a bit harsh at times, as mentioned earlier this should even out though.
Probably easier buying yourself a piece of fruit like an apple to get it all working or use a computer.
Skip the vocal music and stick to the electronic genres and embrace the IMR fun.