@Davy Wentzler - just a shot out for being the only software that allows you to pick the high res driver format. Hiby Music, Neutron, pick by default and I can't force a 16 bit ALSA section. With UAPP, I can!
I find that sending and un-padded bitstream of 16 bit straight to the DAC on DX150 sounds the best. Of course source file must be 16 bit and DAC must natively support it. There's just some magic that's lost when the software sends a padded stream of 24 bits to a DAC that is forced into ALSA state of 32 bit. Perhaps this is all in my head.... I'm not above admitting it. But who cares, I'm happy.
I do have a question that's a bit technical, so I understand if you prefer not to answer - still I post here as it may intrigue other techie licensees of UAPP: When you develop, do you have control over how the bitstreams are 'justified' by the DAC (LSB or MSB)? Or is that all determined by the OS (linux)?