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RE: Fostex alnico tweeters

Posted by cin5 on August 15, 2024 at 10:19:09:

Don,

That tweeter crane for your Fostex 900As that you mentioned here
https://www.audioasylum.com/cgi/vt.mpl?f=hug&m=176989 is some piece of work!

https://gallery.audioasylum.com/cgi/wi.mpl?u=1983&f=IMG_0821.JPG&w=1145&h=1527

Still enjoying the Fostex T900As?

I know that you apparently found great success using DSP rather than a dedicated active or (as in my case the need for a passive) crossover. But as you've had more positive experience with the T900As than anyone I know except perhaps for Troy Crowe, please share your thoughts on Troy's passive crossover. https://www.youtube.com/watch?v=y9HBVHD3Miw&t=2s

And on his "lens" waveguide for improving the measured performance and perceived sound quality of the 900As.
https://www.youtube.com/watch?v=e6QiCzbUhkg

Please describe of the sound of your 900A tweeter/crossover build: Sound stage width/depth/height size, imaging, off-axis response, size of dispersion pattern vs. dome tweeters, smoothness, tonality. Free of brightness, hardness, "hashy" sounding, metallic or "pinging" sound, and/or other artifacts.

Also, what amplifiers are you using?

Finally, if you are a movie fan like me then you are likely aware that the audio from lossy Dolby Digital on DVDs and even lossless DTS-MA on BDs or from streaming is not always the most pristine. So, while typically using these speakers for critical music listening, on a scale of 1 to 10, with 10 being best, how would you rate speakers using the T900A tweeters for reproducing typical movie quality sound?

Thank you!