Super tweeters, are they worthwile?


Hello guys
I've been reading some infomation on the web about super tweeters and I've got curious.
First I didnt believe in subwoofers, I thought the would only add bass quantity to my system and then I got convinced and I tried one. Well, I couldnt believe how much it improved the 3D image, making it rock solid and so real. And I thought soundstage was mostly the tweeters job. 
Now I read some guys swear that super tweeters can also improve the soundstage, 3D image and bass!!  Well, If a sub can improve the mid and high frequencies, I think I can believe super tweeters could improve bass. 
First, I would like to now your experience with super tweeters, please only the ones who actually tried them. 
Second, if I listen all of my music streaming Tidal hifi (44.1 kHz), does this sample rate have ultrasonic infomation for the super tweeters to play? If not, does software or hardware (DAC) upsampling delivery it? 
Finally, wich super tweeters would you recomend under 1k the pair? I mean, ready to plug and play. I dont have the expertise, nor the time and patience to build crossovers, etc.
Just to mention, I live in a country where I dont have the chance to borrow them from a dealer with a trial period. I have to buy everything blindly. 
Thanks!! 

plga

Showing 1 response by millercarbon

My Talon Khorus use super tweeters. Or is it super-duper? I forget. But I know they work, because when I play my test CD and it gets to 40,000 Hz I can put my ear right up to the superstar tweeter and can't hear anything. Since I can't hear anything that high I shouldn't be able to hear anything from the supernova tweeter, which I can't, and so I know its working.

Or it could be this is all mass confusion over the valid point that some sounds change so fast its the equivalent of ultra-sonic, which while quite different than an actual ultra-sonic frequency is a distinction a little too sophisticated for the average audiophile. Yeah. That's the one. Nailed it.