Nice, I was using USB Audio Player Pro on my Xperia - plays Hi Res audio flawlessly, no wasting time on a flashy interface or multi band equalizers, just load the album and press play!! But, I now have a couple of DAP's to play with, yumptious. Now Pioneer and Onkyo have joined forces my Pioneer DAP has an Onkyo Audio Player built in plus access to the Onkyo Hi Res Music Store, it is glorious, It's powered by a ESS SABRE 32 DAC so quality is assured! ! Plays everything- DSD files are heavenly and a Firmware update to enable MQA playback is imminent. I would also rave about my Astell & Kern DAP but that would just be showing off ... .. .