Let's talk Tweeters!

Pistonic motion critical
starts and stops both measured
impulse prrformance
breakup where does it occur and relative to crossover or in case of tweeters... how far above 20 k

i own and listen to two legendary tweeters every day - carbon fiber dome and a 24" true ribbon.....

ah.... 

I use and enjoy a pair of ESS AMT's (the 'big black blocks) as a reference for high end hilarity.  Fast and clean, and hard to find woofers to keep up with them.  Other ribbons can be in that range but the only way to improve is to 'line source' them, which can pretty pricey pretty quickly...

All of that, of course, IMHO....

I use them as a benchmark for the Walsh tweeters I'm fabricating.  Dipoles are nice, but if I can make an omni that follows That act...sweet. *S*

If I 'get there', y'all will hear of it second.  I'll obviously be the first. *L*

Hey @asvjerry

Usually when I hear about issues integrating woofers with very light tweeters it's a frequency response issue, and integration with the room issue.

Below 400 Hz especially, woofers are going to have issues the tweets will never have, so it's kind of an unfair comparison in my mind.

I can make a lot of reasonably good 15" sub's sound as "fast" as any ESL/planar/magnetic. But it's a giant PITA. :)

Best,


E

Hi, Eric, and back atcha'...*S*

No real argument from this mortal about that....room integration is everyone's devil, and freq. response I beat over the head with active eq.  And yes, it's unfair to try to get high mass to respond as quickly.  So I'll just be unfair about it and be the devil's advocate. *L*  Not likely to be my first foray into That territory. ;)

Smaller woofers with less mass seem to do better in that regard, 8" being the 'break point' to my ears.  I deal with the issue by 'high bass' going to a 6" with a passive, then to 12" for the lower end.  For the deep stuff, a small ported sub...

I'll bet getting a 15" to behave is a major pain.  Kudos for the ability to attain that niche.  I've got an old 18" driver in great shape that I'm looking to torture into being a sub, but I'll match it with things of it's era just in an attempt to 'be fair about it'.  Damn things' nearly as old as I am, and I wouldn't ask self to try to move quickly, either. *L*

I'm a sucker for 'antique audio'....maybe due for therapy over that...;)

I'm with Jerry on this one.
I can still remember the sound of my Heil ESS AMT  "rock monitors".
Cleanest, sharpest & fastest highs I've ever heard.
I bought them over 40 years ago & I kept them until the late '90's.
Nothing I've had since can ever make me forget them.
Only wish I knew now what I knew then!