what are the thoughts of stand alone super tweeter

In my last post I failed to give a complete guide to the article. It is Archive A10
DO WE NEED AN ULTRASONIC BANDWIDTH FOR HIGHER FIDELITY SOUND REPRODUCTION?
Martin Colloms, Colloms Electroacoustics London, 2006
It is found on the AUDIO CRITIC magazine section of the web site.

Stanwal, the fallacy of his argument is saying, "These ‘super tweeter’s typically operate in parallel with the existing tweeter over about an octave
bandwidth, and may destructively interfere with the primary tweeter output." This is what you have continually argued also and it is just not true of the Muratas and, I think, the Townshends.

Tbg, we seem to be in a circular argument.

First let's state a hopefully agreed fact: whether the Muratas, Townshends or another supertweeter, their frequency bandwidth starts at some point. For example, you use the figure of 15KHz for the Muratas.

Not every speaker on the market is polite enough to stop at that selected point. Some fall short before. Some run past that frequency. Perhaps a few stop where the supertweeter expects them to.

Your position seems to be: no matter what the main speaker, a supertweeter always makes things better.

Some of us are less credulous of that position. In Martin Colloms case, he is one of the most respected and experienced voices in the world of speaker design and evaluation. I, and many others, give his views great credence. A supertweeter, if used, deserves the same effort toward integration as any other driver. Otherwise the effectiveness of the results will be haphazard.

I guess we just need to agree to disagree on this point.

Mlsstl, my Acapellas extent supposedly to 30K, so there is overlap. But the Muratas play no music. You hear nothing that you would mistake as music on them when played alone. I participated in a demonstration at CES several years ago when I initially heard this. Martin Colloms whom I respect greatly is right in my previous experience with super tweeters. I always preferred the speakers without the super tweeters.

The Muratas worked well with the Lowther drivers in my Beauhorns which were rolling off above 14K Hz. When I got the Acapellas, I thought they would be of no use. Much to my surprise, they added greatly to the soundstage width and realism.

As always, I really don't care what the logic you and Martin state means if I hear otherwise. I know full-well the limits of our understandings.

I don't really disagree with you, I think your explanation fails to account for observations. I know from my science training that an explanation that fails to account for observations is a failed explanation whether or not it is broadly accepted.

Readers should do a search and read Tbg's posting history for a clearer picture of what misunderstanding means.

Chock full of them folks.

And they're funny, too.