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Read the Post in new Window Read the Post in Threaded view  Post #9: Cessaro drivers by thierry on 2007-02-15 
Browse the content of the threads in new Window  Thread: The most promising “best” commercial speaker in Horn-Loaded Speakers  241 Replies 
If you ask me the compression drivers is like the jbl 2420/2470 design only with an other back chamber. And the low freq driver really makes me think of an old alnico driver of jbl 2220A http://www.lansingheritage.org/images/jbl/specs/pro-comp/2420/p...

Read the Post in new Window Read the Post in Threaded view  Post #15: s2 repro field coil by thierry on 2006-12-28 
Browse the content of the threads in new Window  Thread: Vitavox S2 driver made in china in Horn-Loaded Speakers  36 Replies 
Ah i just read your article, and its funny that i share the same believ. While you were experimenting with the telefunken field coils did you also notice that the amount of current running tru the field coil also has a great of impact on sound and re...

Read the Post in new Window Read the Post in Threaded view  Post #13: s2 repro by thierry on 2006-12-28 
Browse the content of the threads in new Window  Thread: Vitavox S2 driver made in china in Horn-Loaded Speakers  36 Replies 
Romy, your skeptism is understandable. It is not just something that i am trying to achieve, its gone be a lot of work. But I have a lot of experiance in this field, and i get a lot of help so if you have any ideas regarding this project or anyb...

Read the Post in new Window Read the Post in Threaded view  Post #11: S2 repro by thierry on 2006-12-27 
Browse the content of the threads in new Window  Thread: Vitavox S2 driver made in china in Horn-Loaded Speakers  36 Replies 
The idea of making a copy of an s2 driver also intrest me, but i have some other ideas than just copying this driver.I have been thinking to make this driver with an field coil magnet a 12 volts (using a car or camping battery) and a 250 volts versio...
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