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What speaker has the best high frequencies?

I have a Spatial Audio X5 with a wide band horn loaded AMT (Air Motion Transformer) which handles high frequencies (1k and up?). It is big, about 6” x 1”. I feel it is much better than the 1” tweeter found in most speakers.  I honestly don’t know how this AMT is different from, say, ribbon tweeter.  This leads me to think, who or what speaker has the best high frequencies?  I heard good things about the B&W diamond tweeter, but it is still a 1” tweeter.  What else is out there?  I think size makes a difference.  In this case, is it a larger ribbing tweeter better than most 1” tweeters?  
gte357s
rixthetrick's avatar
rixthetrick
1,060 posts
 
X3-06 EXOTIC T35

But I have heard them also with a solid copper modified baffle.
SEASExotic-T35Tweeters(CopperFaceplate)

The brass terminals were replaced with copper tubes, and the leads crimped and soldered.

1500-25KHz
213runnin
914 posts
 
There is no one speaker that has the best high frequencies.
rudison
3 posts
 
Electrostatic is my choice followed by Plasma tweeter
weh51nc
24 posts
 
Having heard several variants on plasma and ion speakers back in the very early days of HP's Absolute Sound evaluations (back when the "magazine" was little more than a dozen pages, stapled and folded). I'd have to say that they reign supreme; however, they have never been practical commercially.

Of those designs that have survived as commercial products, electrostats (martinlogan, dayton-wright, others) and magnetic ribbons (Heil, Magnepan - different, yet similar in principle) are probably the best.

I fell in love with the original CLS speakers playing string quartets when I first heard them. And, I owned a pair of Monolith III's that I bi-amped using the Dahlquist DQ-LP1 active crossover.
brownsfan
1,508 posts
 
I've been following this thread with interest but waited to comment.  I was wondering when and if the Magnepan true ribbons would be mentioned.   I have never owned any of the top tier speakers.  I've auditioned just a few speakers that retail north of 10K.  So I'm not really in a position to speculate on "the best" tweeter.   But I will say without hesitation that the best tweeter I have heard is the Maggie true ribbon.  It is the one thing I really miss since moving away from Maggies.  The tweets in my MG 3.7s were heavenly.  They never got overly aggressive.  They were very resolving, free of grain and breakup, sweet as honey and smooth as silk.  
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