Congrats! I just picked up one as well while amazon had them on sale for 779 last week! I've been doing extensive lab testing on calibrated equipment and finding some really cool results on how their mysterious ProEQ and Line Out truly operate. For listening I've settled on SE535s LTD Reds and couldn't be more excited! In fact I just sold my x5 as the AK signature is more my taste 😄
Also, starting to dig into how their hybrid android Linux.rom operates to see if the TCC9201 chip code can be modded to unlock the various digital filters (slow / fast / brick wall / etc) can be changed for the WM8840s.
Angain congrats and welcome!