It looks like newer phones have much better DAC chips. I'm starting to eye off what my next phone should be to provide better sound. I think the Album Artist field would solve that in USB_APP though but would require more work on my part. I do prefer some aspects of USB_APP UI though but unfortunately, it didn't pick up a lot of my album art and didn't merge albums with the same name (with multiple CD's) into one Album, as PowerAmp does. But maybe that's just an EQ or Effects setting? They were both very clean but the spaciousness was different and some instruments were more pronounced. I spent a bit of time comparing PowerAmp 3 and USB Audio Player Pro last night and I could hear a subtle difference but couldn't decide which I preferred. I'm guessing that because I'm ripping my own CD's to FLAC I'm never going to get above 16Bit/44.1khz anyway? In that case, I'm supposing Bluetooth isn't my limiting factor for better sound quality for now.
