I can understand the clarity part, but the soundstage? Still, I do not have any experience comparing DACs. I have the ODAC + O2 and C5D. These are not higher-end DACs, but they do serve their purpose well. Your comment on DAC chips and what makes a difference between DAC units, particularly its analog part, I think are right on the money. Digital needs a good, clean, well-regulated power supply. I imagine a separate regulated power supply and ground between the audio and digital parts is a good idea. The USB conversion I understand has its pitfalls unless properly implemented. But a DAC that has been well-designed should also be transparent, in other words, genuine to the recorded material. I think if there are any differences between good DACs, it would be the analog part.
What do you think?
Bob Graham