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Old 28th November 2009, 12:56 PM   #1
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Default Diy planarspeakers

I have been working with planars a year and here is some models:
[IMG]Click the image to open in full size.[/IMG]
[The last one i made has curved membrane and curved panels as well:
[[IMG]Click the image to open in full size.[/IMG]

Last edited by båndsei; 28th November 2009 at 01:01 PM. Reason: Too small picture
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Old 28th November 2009, 01:07 PM   #2
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Hallo bandsei,

your models look very professional and elegant.

Would you like to tell us something about the way they
are driven and the materials used ?

What is the typical lower frequency limit ?

Kind regards
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Old 28th November 2009, 01:16 PM   #3
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They are driven with a class D amp app. 250w in 4 ohms.Crossover 150 hz. 24 db. electronic filter.
Magnets are neodymniun 10x6 x70mm. Membrane are made of alufoil on paper taped with microporretape.
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Old 28th November 2009, 01:21 PM   #4
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So i suspect the current flows vertically through the
ribbon like conductors, which are row circuited ?

The magnets are on the rear of the membrane only ?

Membrane glued directly on the magnet structure
possibly using some suspending/damping layer
in between (this is your microporretape) ?

Sorry if a ask too many questions ...

Can you describe how they sound, compared to
other kinds of systems you know ?

What are virtues, are there drawbacks you know ?
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www.dipol-audio.de

Last edited by LineArray; 28th November 2009 at 01:34 PM.
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Old 28th November 2009, 05:25 PM   #5
bentl is offline bentl  Norway
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Location: Norway
Hi bandsei,

could you please share some mor photos? Wold like to see some closeups and possibly a picture from the rear.

Regards,
Bent
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Old 28th November 2009, 05:42 PM   #6
a.wayne is offline a.wayne  United States
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Location: Front Row Center
Hello bansei ,

Another good looking planer with your special metal work ...


regards,
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Old 28th November 2009, 10:10 PM   #7
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Here is some pictures.They are not from the same speaker but shows some details wich are the same for more models.
[IMG]Click the image to open in full size.[/IMG]
[IMG]Click the image to open in full size.[/IMG]
[IMG]Click the image to open in full size.[/IMG]
Hope the pictures anserves some of yours questions.
Theese are the best speakers i have had.
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Old 28th November 2009, 10:23 PM   #8
tinitus is offline tinitus  Europe
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And yeah, they do sound sweet
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Old 28th November 2009, 11:30 PM   #9
jrubins is offline jrubins  United States
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Location: San Jose, CA
wow! very cool.
Where do you get your supplies?
I'm looking for a source on the aluminum/papertape combo and the neodymium magnets bars.

Have you tried any push-pull magnet arrangements or do you always place the magnets on the back side?

Those look great!
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Old 29th November 2009, 02:48 AM   #10
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Nice work, indeed.

Show us more pictures, please.

Wachara C.
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