Repair-Service (replace of parts e. g. the tube PL519) must take place regularly and as I know, only Acapella itself can perform this. This is a great disadvantage.
Therefore I am looking for basic literature concerning this approach - independent of this it would be interesting to know, whether exist alternatives with similar sonic quality (like ATC, Stage Accompany SA8535, Alcone etc.).
Acapella Acapella TW1 Ionenhochtoner (1143640714) | Gebrauchtgerat | Lautsprecher, Kopfhorer | Angebot auf audio-markt.de
https://web.archive.org/web/20211026001615/http://www.plasmatweeter.de/acapella.htm
http://www.plasmaspeaker.de/bausatz-01.html (maybe successor ?)
A Capella/ATR TW-1S
수입오디오-장터 - 아카펠라 프라즈마 이온 트위터
https://www.monoandstereo.com/2014/07/acapella-ion-tw-1s-ionic-tweeter.html
Who can upload a service manual ?
Therefore I am looking for basic literature concerning this approach - independent of this it would be interesting to know, whether exist alternatives with similar sonic quality (like ATC, Stage Accompany SA8535, Alcone etc.).
Acapella Acapella TW1 Ionenhochtoner (1143640714) | Gebrauchtgerat | Lautsprecher, Kopfhorer | Angebot auf audio-markt.de
https://web.archive.org/web/20211026001615/http://www.plasmatweeter.de/acapella.htm
http://www.plasmaspeaker.de/bausatz-01.html (maybe successor ?)
A Capella/ATR TW-1S
수입오디오-장터 - 아카펠라 프라즈마 이온 트위터
https://www.monoandstereo.com/2014/07/acapella-ion-tw-1s-ionic-tweeter.html
Who can upload a service manual ?
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Ultimate is in the ear of the beholder. The TAD ET 703 if you can score a pair is great. Large Fostex t500 mk2 or Mk3 is also excellent. Another possibility is the RAAL lazy ribbon tweeter.
You can also contact Ralf Krebs of Cessaro. I understand he now makes his own drivers now but don't know if he will sell parts. He should be tops on your list to speak with.
Best of luck,
Joe
You can also contact Ralf Krebs of Cessaro. I understand he now makes his own drivers now but don't know if he will sell parts. He should be tops on your list to speak with.
Best of luck,
Joe
Thread moved to Planars & Exotics.If ultimate frequency range extension is the target, Murata ES103 105 or ESTD01 piezo tweeters come into mind ...
The Bliesma 25mm Diamond or Beryllium tweeters could also be an option (on a waveguide).
Unfortunately due to its ultra small "discharge volume", plasma tweeter produce tremendous amounts of H2 distortion and Intermodulation as well, so you need to cope with that in order get a 100% replacement, sound wise.
The Bliesma 25mm Diamond or Beryllium tweeters could also be an option (on a waveguide).
Unfortunately due to its ultra small "discharge volume", plasma tweeter produce tremendous amounts of H2 distortion and Intermodulation as well, so you need to cope with that in order get a 100% replacement, sound wise.
What's the point of an 'ultimate sounding tweeter'? Surely in a properly implemented loudspeaker system no individual component should have a sound of its own. Any enthused esteem of a component outside of the context of a complete system is nugatory.
I think it depends on your definition of "ultimate." If ultimate means total detail retrieval, lack of fatigue-inducing distortion or frequency response issues, reasonable sensitivity, etc., then that driver will likely work in any system without drawing attention to itself (assuming basic level matching is done properly). As an ideal, it seems like a valid goal.
If your idea of ultimate leans toward euphonic coloration, a sizzly or distorted character that's perceived as detailed, emphasizing one aspect over others (sensitivity at all costs), etc., then that's more likely to only work in certain designs.
Small full-range-ish drivers are a place where some of this is more obvious. Many just don't have much detail retrieval. However they're used or equalized, that character comes through. You can make them better sometimes, but they'll always have that deficiency to a certain extent.
If your idea of ultimate leans toward euphonic coloration, a sizzly or distorted character that's perceived as detailed, emphasizing one aspect over others (sensitivity at all costs), etc., then that's more likely to only work in certain designs.
Small full-range-ish drivers are a place where some of this is more obvious. Many just don't have much detail retrieval. However they're used or equalized, that character comes through. You can make them better sometimes, but they'll always have that deficiency to a certain extent.
I'm going to need to see some polar plots, impulse response plots, and some harmonic distortion plots before I can take that thing seriously.
Sheldon
Sheldon
Building your own plasma tweeter is a cool thing to do. There are enough instructions and links in this part of the forum if you go through them.
I heard these awhile ago at a show where they did in/out in/out demonstrations and it was a clear advantage in leading edge definition without sounding harsh or iratating overall.
Quite easy to tell the differences and superior with it in the system
Quite easy to tell the differences and superior with it in the system
Who know the resistance of potentiometer for volume control (go to the image of previous video, 10:31-10:34) ?
I want to replace it by this one under
http://www.tkd-corp.com/productspdf/cp600ps-e.pdf
https://www.fk-industrie.de/de/produktkatalog/P/D/A/L/546.html
due crackling while level adjust on the old one.
P.S.: check out updates of various dead links and the additional pdf file (instruction manual) in post #1 .
I want to replace it by this one under
http://www.tkd-corp.com/productspdf/cp600ps-e.pdf
https://www.fk-industrie.de/de/produktkatalog/P/D/A/L/546.html
due crackling while level adjust on the old one.
P.S.: check out updates of various dead links and the additional pdf file (instruction manual) in post #1 .
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Zach Armstrong build efficient Class E tesla:
https://hackaday.com/2024/04/26/build-your-own-class-e-musical-tesla-coil/
https://hackaday.com/2024/04/26/build-your-own-class-e-musical-tesla-coil/
One of the sets of Cogent speakers that were custom built for a customer were supplied with Fostex T-500a MkII tweeters and they sounded great in the system.
But the owner of the system liked to tweak with things so he contacted Hermann at Acapella and was able to buy a pair of his plasma tweeters. One issue was the severe sensitivity mismatch, but a call to Jack Elliano at Electra Print and pair of custom autoformers brought the level of the Acapella tweeters up to a good balance.
As good as the Fostex tweeters are, they sounded like sandpaper compared to the plasma. Seriously, the difference is that extreme
I came vary close to getting a pair of the TAD ET-703 a few years ago, but they got away from me. While I can't confirm from direct listening I'm pretty confident they would be similar to the quality of the Fostex tweeters and similarly no comparison to the plasma.
If I had an spare 12K i'd put the min my system.