[spinner]

  James can I simply purchase these from my local dealer?  What is their upper frequency range ?

[James Tanner]

Hi.

Yes you can certainly order them from the dealer.

The upper limit before rolloff is about 24K - not that you will hear that. Its much more important that the dispersion on and off axis is uniform and that is what the new tweeter is all about.

james

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  Thanks  James....   I may use them as replacements for my  JBL ti 044 tweeters.

[rmurray]

 You may have to make an adaptation to mount them in the Ti's. The JBL o44 tweeter looks like this.....