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In the Forum: Horn-Loaded Speakers
In the Thread: Electro-Voice T350, T35, + Fostex tweeters.
Post Subject: More scattered pointsPosted by Romy the Cat on: 7/24/2005

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 cv wrote:
  I gather the Acapella plasma tweeters have a catalyst so you don't get the nasty oxides/ozone etc. Got some old ionofanes on the way so will know soon how well they freshen up the room... They are self-amplified so efficiency is not an issue.

Beside of others problem with the plasmatroniks they never sound like compression/dynamic drivers and this sound never could be integrated. The Acapella is a wonderful illustration of that said fact. As far as the old ionofanes and some others… this is all wishful thinking. First of all the never were made to the level of diamonds the we expect form them now and second… this membrane last for 1000-2000 hours and then sound like crap…
 cv wrote:
I know JMLC loves them and found the ET703 "somewhat digital" sounding...
The same JMLC use barbarian digital crossover for everything and he is big DSP proponent. No wonder that he has "somewhat digital" sounding... :-)
 cv wrote:
Seems to me like the following tweeter might be worth a try, so long as you can bypass the internal x/o: http://www.e-speakers.com/pdf/LCY-100K-specsheet.pdf except you'd need another amp channel.... which goes for all ribbons I guess.
Yes, there are many companies do ribbons and some of then even publish dB sensitively in their specifications. :-) I kind of skeptic about them. I would feel that Visaton/Fostex/Onken like tweeter would be more attractive, of course if they use proper magnets and proper diaphragms. In fact I kind of am considering to try some kind of “zippy” tweeters again. You see I find a very “yellow” sounding tube for gain stage of Melquíades and I would like to see how it will work out….
 cv wrote:
Have you tried boosting the HF to the S2? Given that you have a potential divider at the input of the amp, you can just shunt the upper R with a cap (or RC for shelving filter)  Actually, forget that, it will just exacerbate the S2s breakup.
Nope, it is not about boosting but taking the back plate off and invert the driver.

The caT

 

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