I have both...i buyed N and U long ago.... the usbap- dont know about mp3 - but dsd -sure neutron sounds different... also volume is different -all settings affecting sound off.... dont know what i like better ... but USBAP - is with dsds very laggy, slow, Neutron is very fast, also changing tracks, time - and it supports Native playback of dsd with fiio HW -tested with friend Yaslam and N DEV ---- IT SEEMS only fiio app and Neutron can native play Dsds.... The usbap -shows sometimes different frq as Neutron - bitperfect on/ when possible.... it seems USBAP converting DSD64 to 352000hz PCM as my fried Yaslam wrote me... With mp3s - i think there is no difference, not sure ---need more time to try... but Usbap gets every 2 days /to time/ a update... looking for this player.. iam glad something/someone making progress .... the UI in USBAP is much better as before.. ALSO -iam using both today --loading tracks with 2x256 gb cards was good, i think faster then earlier versions of fiio m ap... happy i can choose... yes the fiio app have i disabledI've been reading that using UAPP improved the sound of the X5iii.
I'm curious how it "improves", what's the difference sonically?
Last edited: