Hi, are you sure that Amp8 module is the right one for driving hungry High impedance (300 ohm, 600 ohm) open headphones with enough power? I have read about it, that it should be the opposite - to drive hungry Low impedance iems instead. I am looking for a dap that can drive my brighter sounding vintage Sennheisers, and its sound must be a bit warmer, bassier and more robust to compensate bright character of my headphones and add some amount of bass and body to their sound. From what I read, both M5s and DX150 have such tonality. I like sound of my Shanling M0 with them, I just need to get a little closer to the ideal power-wise and also quality-wise than with M0. My Chord Mojo is on another quality level than M0 but it is much brighter in tonality which does not suit them well. So the question is, if both DAPs are suitable tonality wise, is DX150 (possibly with Amp8 module or any other suitable module) significantly more powerfull and therefore could it drive my headphones a lot better than M5s? And what about its sound quality? Could it be similar to that of M5s? If I use balanced outputs, maybe M5s could be good enough upgrade from M0, or not so much?