Quote: does the woo/600 get much use? I use the HD650s more than the main system, because I only have about a half hour a day to listen (and when I do, my most comfy chair is NOT in the sweet spot). The two systems present very similar sonic qualities and perspectives. I did a good job of matching my priorities and tastes. That's why the system hasn't been revved in a long time (updated speakers, cables, and tubes).