One must beware the "driver's ed syndrome" when comparing systems. Driver's education was used as an example in a psychology class I took in college. (Yes, I took several -- I was pre-med, since electrical engineering and working my way through was not masochistic enough. ) Supposedly driver's ed made for much better drivers and better grades. Turns out the students who took driver's ed tended to be the more conscientious ones who had better grades and would be better drivers regardless.
The link to this tale is that speakers using higher-end components may be designed by people who pay more attention to all aspects of the design and so would sound better if the tweeters were paper, Al, Be, diamond, or whatever. Just like some of the more expensive CDs sound better due to better (re)mastering and attention to detail throughout the recording processing, not necessarily because the final CD is thicker, gold plated, has green edges, or whatever.
(And y'all though I was going to bring up expectation bias -- ha! Too easy... )
The link to this tale is that speakers using higher-end components may be designed by people who pay more attention to all aspects of the design and so would sound better if the tweeters were paper, Al, Be, diamond, or whatever. Just like some of the more expensive CDs sound better due to better (re)mastering and attention to detail throughout the recording processing, not necessarily because the final CD is thicker, gold plated, has green edges, or whatever.
(And y'all though I was going to bring up expectation bias -- ha! Too easy... )