Listening to DSD audio files at 176400Hz vs traditional 320 bit mp3 audio files at 44100Hz.

The difference in playback quality is like chalk and cheese. The DSD audio files are on a different planet sonically.

Also note the above screen shot is the new interface for USB Audio Player Pro that just received a major update. 

The UAPP app is running on my Note 4, the Note 4 has the Oppo HA-2 Portable Amplifier and DAC connected, with a pair of AKG K702 headphones connected, providing the ultimate portable experience IMO. (providing you like huge looking headphones)

For the review of the Oppo HA-2 scroll down a few posts for the review link.