That being said on my headphone sabbatical I also learned to appreciate my speakers as well:
- The imaging was precise and layered with the speakers; versus with the HD600's at times I felt that it was harder to mentally place instruments.
- Soundstage was (duh) amazing with speakers (it helps that they are a single-driver design)
- On certain tracks the realism of the presentation was so stunning that I could picture the artist in front of me. I never had this experience with the HD600's.
You're ready for HD800 ...