Adding the Tanchjim Oxygen to the list. The Oxygen seems to fix everything I didn't like about the Moondrop Kanas Pro- KP bass felt disjointed with too much emphasis on sub bass and lack mid bass in comparison (I prefer a more linear approach; I will add that perhaps there are Kanas Pro unit variance issue at play too). The Oxygen tuning is somewhat like a dynamic driver version of the Massdrop Plus (at near 0 impedance levels)- deep bass rumble levels are similar with longer decay times from the Oxygen. Both are very clear but the Oxygen has a little more warmth and the Plus has a little more energy in female vocals. The Oxygen is more extended up top but is also a little more relaxed in comparison. While the Plus rolls off a little early up top, it' more forward in lower treble, sounding brighter and a little more aggressive overall. The Oxygen has really good synergy with the new Hiby W5 bluetooth receiver, which has the same chipset as the Shanling M0. It sounds full, crisp and well balanced throughout. Too bad the W5 functionality is half baked touch controls with no option to control volume, except from the phone and then there can be lag at times. It also has a useless fixed clip for putting on a belt or jeans; a shirt is about all that can easily slide in without accidentally pressing the button several times over. Not to mention is shaped like something you'd buy from Starship or Adam and Eve. But if you can put up with these hassles, its synergy is undeniable with the Oxygen.