Well,
I don't know if you consider them as high ends..Maybe they could could be entry levels according to few people.
Have done Wharfdale diamonds, Paradigm monitors, Def tech bipolars, Energy classic, Monitor audio plats, polk audio Rti's, Harmans and Yamaha.
I was serious to buy one in 2008, but it couldn't happen. Now I am seriously scouting again. Will be doing few more listening over the weekend...Of all I have heard Def tech sounded the best to me but its damn costly!!