First the wider soundstage can be explained by your friend leaving your bedroom door opened
Yes the new Db makes it a breeze now the only thing is to set it up right in the beginning then you're smooth sailing! In doubt meaning no cover arts delete the damn .audio_data directory on your SD card, rescan and voila they are back!
:D haha yeah, it may very well be some placebo...
sometimes I'm amazed how differently can DX50 sounds to my ears. one day I might be listening to a song and my emotional response would be meh, but sometimes it sounds so eargasmic, I can't hold the grin off of my face :D