I always get the "everyone has different tastes...it's what you like" speech when I am shopping for gear and I have to tell the guy I'm not impressed with something. It's cliche and annoying. I always prefer when people are upfront about their experiences with various gear. I think some more discussion about the various firmwares would be very welcome here. The differences are NOT subtle, however everyone has different rigs and set-ups.
Is anyone else using the DX50 as a transport to their home rig via the coax? That seems to work exceptionally well. Sounds much better than various USB Dacs and my computer and it responds very well to EQ. I do notice the differences don't bother me as much when I am using the lineout to my car's aux jack.
I am using it as a transport with the coax feeding my Schiit Bifrost (w/uber upgrade) and Lyr and listening with the LCD-2s. I am very impressed with the overall sound! I don't use the EQ though since I like the effects the tubes I am using in the Lyr have on the music.