The funny thing about the differences in tweeters is that once Dennis gets his hands on them, they all start sounding pretty similar. Not the same, but close enough.I completely agree. Once, early on in my DIY days, Dennis demoed two 2-way speakers. Same cabinets, ports, and mid woofers, but different tweeters. Both were 1" domes, one aluminum and the other silk. They sounded IDENTICAL. He could design the crossover carefully enough to do that. Other people there that day had previously sworn they could hear the high frequency "oil can" resonance of aluminum tweeters, until they heard Dennis's demo.\n\nEdit: Those crossovers had nothing in them that could affect the tweeters high frequency response.\n\nHe also did the same for aluminum vs. treated paper mid woofers. With aluminum mid woofers in a 2-way design, people can easily hear the "oil can" resonance (break-up noise),if the crossover allows that to get through. Design the crossover right, and they don't sound different.