I have not listened to the any of the speakers that cost as much as a house, so I doubt I have listen to the best speakers in the world. Then again, my hearing isn't perfect... so wonder if I could tell the different between a worlds best, and merely amazingly good. The best speakers I have listened to that are still in production are the Aerial Acoustics 20T. The 20T (as well as the earlier 10T) were a big surprise to me... I typically favor ribbon or electrostatic speakers to dynamic, but I liked these speakers as much (or more) than panel speakers I had listened to which included several models from Apogee, ML, SoundLab, etc.
As others have pointed out.. prep of the room and having the right equipment to drive the speakers can make a huge different. At some point people might benefit from a house remodel more than a better speaker.
Edited by verber - 9/4/12 at 11:51pm