The late Brian Cheney did some very impressive live vs amplified sound comparisons at a few hifi shows that must have been difficult to set up and the results were very impressive. Surprisingly, the general public didn't seem very interested in the most honest, no excuses, speaker demonstration.
As a professional musician I have heard some post production studios and even some sound reinforcement setups that were very well done. So depending on ones subjective criteria I would say yes there are some very accurate speakers who performance are very dependent on the room and the execution of their setup which, as a whole, is no small task.
In all, the one thing all this has taught me is that there is no such thing as a full range speaker unless it contains a separately and very robust amplified bass design.
As a professional musician I have heard some post production studios and even some sound reinforcement setups that were very well done. So depending on ones subjective criteria I would say yes there are some very accurate speakers who performance are very dependent on the room and the execution of their setup which, as a whole, is no small task.
In all, the one thing all this has taught me is that there is no such thing as a full range speaker unless it contains a separately and very robust amplified bass design.