Originally Posted by
Macca
If you can set your super tweeters so they only output above, say 20Hz, switch off the main speakers and play some music, you won't hear a thing. In reality super tweeters have output way down into the audible range. That's how they work. It's just adding an extra tweeter to the speaker. There will be some cancellation but on the whole you'll shelve up the whole top end from maybe as low as 5Khz all the way up. So there's more air and space! But no mystery.
What other posts are you talking about?