My speakers - Page 2

LineArray · 27th September 2009, 08:31 PM

I am very impressed too,

especially because of the solutions you have found to adress
problems in conventional systems.

What i like most is the "resonance frequency adjuster".

Works much like tensioning a drumhead. Do you think you can
compensate a downshift in resonance frequency, when tension
goes down over the years ?

Have you observed any shift until now ?

Kind regards

JonasKarud · 28th September 2009, 08:00 AM

Thanks, glad You liked it!

You must do a new adjustment after 2-3 weeks in use, but after that it stabilizes. This goes for 12 uM Mylar, I haven't tested the device on 6uM.

CharlieM · 30th January 2010, 04:14 AM

Hi Jonas,
I think your magnet strip spacers are the best thing since sliced bread and would like to use them on my next ESL build. I'm interested to know what type magnets you used and how you bonded them to your stators and whatever else you can share. McMaster-Carr sells a variety of ferrite/rubber flex-magnet strips, some with adhesive backing, different grades of holding power, some with magnetic hold on one surface only, etc...
Please have a look and advise if these type strips would work and if you have any recommendations: McMaster-Carr
thanks,
Charlie

JonasKarud · 30th January 2010, 12:37 PM

Hi, Charlie,

Are the speakers full range, you can use the 1/8 thick, 1/2 width, extra pull # 5769K62
If not, use 1/16 thick, 1/2 width extra pull. 5769K61. You do not need to put the tape in the same pattern I did, there´s much room for experiments. For instance, if you build a mid/high tone speaker, you can distribute small islands of flex mag tape 3-5 inch away from each other.
When taping the magnets, do it first on one of the stators. Then attatch the magnets intended for the other stator on these taped magnets, and then tape the second stator on top of it all...good luck!

CharlieM · 30th January 2010, 01:35 PM

Muchos Gracias!
Going with a hybrid.

Dude, if there were a "Kick-*** idea of the year Award", I'd nominate YOU

CharlieM · 30th January 2010, 01:43 PM

Muchos Gracias!
Going with a hybrid.

Dude, if there were a "Kick-*** idea of the year Award", I'd nominate YOU

mavric · 31st January 2010, 01:24 AM

will the step up transfomers i purchased work with set up? they are from newark, out put current T:2.5 amp, voltage:6 V, supply will be 230v but i am using two per stator for 120v input, shows secondondary as 0-6volt. thats whats on the package.
i have been curious about diffent spacing on the planers, so??? can you you use one stat to play high, mid , as well as low at or around 500hz? or just make one big panel and isolate the diagphram in key location to achieve the sound quality. I am a little confused as i cannot see any pics.
still working here on getting material, it is that everyone has a great idea. nothing wrong at all with that. just want the same sound Charlie has with his ESL, Like you said, there is nothing like it.
plaese stay with me as I am still learning.
kind regards. Mavric
by the way, those look awesome. and then some, wish i could hear them.

27th September 2009, 08:31 PM	#11
LineArray diyAudio Member Join Date: Mar 2008	I am very impressed too, especially because of the solutions you have found to adress problems in conventional systems. What i like most is the "resonance frequency adjuster". Works much like tensioning a drumhead. Do you think you can compensate a downshift in resonance frequency, when tension goes down over the years ? Have you observed any shift until now ? Kind regards __________________ Oliver, RFZ believer (?) www.dipol-audio.de

31st January 2010, 01:24 AM	#17
mavric diyAudio Member Join Date: Nov 2009 Location: some place nice	will the step up transfomers i purchased work with set up? they are from newark, out put current T:2.5 amp, voltage:6 V, supply will be 230v but i am using two per stator for 120v input, shows secondondary as 0-6volt. thats whats on the package. i have been curious about diffent spacing on the planers, so??? can you you use one stat to play high, mid , as well as low at or around 500hz? or just make one big panel and isolate the diagphram in key location to achieve the sound quality. I am a little confused as i cannot see any pics. still working here on getting material, it is that everyone has a great idea. nothing wrong at all with that. just want the same sound Charlie has with his ESL, Like you said, there is nothing like it. plaese stay with me as I am still learning. kind regards. Mavric by the way, those look awesome. and then some, wish i could hear them. __________________ The only true wisdom is in knowing you know nothing. A wise man does not need advice and a fool won't take it.

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28th September 2009, 08:00 AM	#12
JonasKarud diyAudio Member Join Date: May 2008	Thanks, glad You liked it! You must do a new adjustment after 2-3 weeks in use, but after that it stabilizes. This goes for 12 uM Mylar, I haven't tested the device on 6uM.

30th January 2010, 04:14 AM	#13
CharlieM diyAudio Member Join Date: Feb 2008 Location: Savannah, GA	Hi Jonas, I think your magnet strip spacers are the best thing since sliced bread and would like to use them on my next ESL build. I'm interested to know what type magnets you used and how you bonded them to your stators and whatever else you can share. McMaster-Carr sells a variety of ferrite/rubber flex-magnet strips, some with adhesive backing, different grades of holding power, some with magnetic hold on one surface only, etc... Please have a look and advise if these type strips would work and if you have any recommendations: McMaster-Carr thanks, Charlie

30th January 2010, 12:37 PM	#14
JonasKarud diyAudio Member Join Date: May 2008	Hi, Charlie, Are the speakers full range, you can use the 1/8 thick, 1/2 width, extra pull # 5769K62 If not, use 1/16 thick, 1/2 width extra pull. 5769K61. You do not need to put the tape in the same pattern I did, there´s much room for experiments. For instance, if you build a mid/high tone speaker, you can distribute small islands of flex mag tape 3-5 inch away from each other. When taping the magnets, do it first on one of the stators. Then attatch the magnets intended for the other stator on these taped magnets, and then tape the second stator on top of it all...good luck!

30th January 2010, 01:35 PM	#15
CharlieM diyAudio Member Join Date: Feb 2008 Location: Savannah, GA	Muchos Gracias! Going with a hybrid. Dude, if there were a "Kick-*** idea of the year Award", I'd nominate YOU

30th January 2010, 01:43 PM	#16
CharlieM diyAudio Member Join Date: Feb 2008 Location: Savannah, GA	Muchos Gracias! Going with a hybrid. Dude, if there were a "Kick-*** idea of the year Award", I'd nominate YOU

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