Looking for some open back headphones around $100 that can be driven without an amp. The Alessandro seemed like the obvious choice, but I'm concerned about the small soundstage. I listen to a fair amount of orchestral music - along with all types of jazz and 60s-80s rock and R&B. That has me...

Hi all. First post after much lurking. I recently acquired a Sony D-321 PCDP, and have been looking at the D-777 and D-465. I know the three are very similar. Are either of the other two significantly better than the D-321 sound-wise, especially on the line out? (I'm not concerned about the...