You answered - Lurker made mod to original software.What is this Lurker mod anyway?
Yes this is Lurker modified version and no it doesn't require rooting.Is this some kind of unofficial firmware modification that requires a root?
And with the Lurker Mod installed, should the dx160 get a slight boost in terms of sound quality?
Yes it is. In speed as it is optimized better and slight fidelity upgrade. At least to my ears. It could by my imagination also as i could not use it at the same with not modded version to compare.
Works perfectly. Mango player good audio player but IMO even better usb audio player proHow does it work, without the Lurker mod, with the Mango player and Android apps?
The Mango player has an EQ and PQ from what I've heard, and they work fine?
Yes they work fine but still it is software eq that influences final sound, purity of signal and so on. So only you decide if it is worth for you
CorrectThe Mango-Player can also be bit perfect and automatically and reliably switches to the correct sample rate, so there is no need for a resample?
They should as they communicate directly to dac not including android resampleAnd how about other apps from the Playstore, such as Neutron and usbaudioplayer pro? Do they work reliably bit perfect and without resample?
Yes in theory, but even better from pentacon balanced out. In your case i would use balanced with dx160. It is better soundwise. Believe meI ask for the reason that I am not so enthusiastic about Android, as it is well known that in the background all audio is first resample to 48 khz and who knows what else.
And the dx160 can actually 3 vrms on 3.5 jack socket? Then it can easily drive 150 ohm headphones such as a sennheiser hd660s?
Dx160 does not heat much, ofcourse it will at some degree but my unit especially with lurker mod is quite cold or warm not going to sun temperatures nothing to worry about.I just wonder how much the dap heats up with headphones like this. The dap should stay cool if possible. I wouldn't find a 45 degree warm dap in my trouser pocket so cool.
Dx160 still one of best sounding dap in his category as sound isn't getting old. Only not the fastest one.