Diy planarspeakers

båndsei · 12:01 PM

I have been working with planars a year and here is some models:
[IMG]

[/IMG]
[The last one i made has curved membrane and curved panels as well:
[[IMG]

[/IMG]

LineArray · 28th November 2009, 12:07 PM

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

båndsei · 28th November 2009, 12:16 PM

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.

LineArray · 12:34 PM

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 ?

bentl · 28th November 2009, 04:25 PM

Hi bandsei,

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

Regards,
Bent

a.wayne · 28th November 2009, 04:42 PM

Hello bansei ,

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

regards,

båndsei · 28th November 2009, 09:10 PM

Here is some pictures.They are not from the same speaker but shows some details wich are the same for more models.
[IMG]

[/IMG]
[IMG]

[/IMG]
Hope the pictures anserves some of yours questions.
Theese are the best speakers i have had.

tinitus · 28th November 2009, 09:23 PM

And yeah, they do sound sweet

jrubins · 28th November 2009, 10:30 PM

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!

chinsettawong · 29th November 2009, 01:48 AM

Nice work, indeed.

Show us more pictures, please.

Wachara C.

28th November 2009, 11:56 AM	#1
båndsei diyAudio Member Join Date: Dec 2008	Diy planarspeakers I have been working with planars a year and here is some models: [IMG][/IMG] [The last one i made has curved membrane and curved panels as well: [[IMG][/IMG] Last edited by båndsei; 28th November 2009 at 12:01 PM. Reason: Too small picture

28th November 2009, 12:07 PM	#2
LineArray diyAudio Member Join Date: Mar 2008	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 __________________ Oliver, RFZ believer (?) www.dipol-audio.de

28th November 2009, 12:21 PM	#4
LineArray diyAudio Member Join Date: Mar 2008	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 ? __________________ Oliver, RFZ believer (?) www.dipol-audio.de Last edited by LineArray; 28th November 2009 at 12:34 PM.

28th November 2009, 09:10 PM	#7
båndsei diyAudio Member Join Date: Dec 2008	Here is some pictures.They are not from the same speaker but shows some details wich are the same for more models. [IMG][/IMG] [IMG][/IMG] [IMG][/IMG] Hope the pictures anserves some of yours questions. Theese are the best speakers i have had.

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28th November 2009, 12:16 PM	#3
båndsei diyAudio Member Join Date: Dec 2008	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.

28th November 2009, 04:25 PM	#5
bentl diyAudio Member Join Date: Apr 2009 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

28th November 2009, 04:42 PM	#6
a.wayne diyAudio Member Join Date: May 2008 Location: Front Row Center	Hello bansei , Another good looking planer with your special metal work ... regards,

28th November 2009, 09:23 PM	#8
tinitus diyAudio Moderator Join Date: Nov 2005	And yeah, they do sound sweet

28th November 2009, 10:30 PM	#9
jrubins diyAudio Member Join Date: Nov 2009 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!

29th November 2009, 01:48 AM	#10
chinsettawong diyAudio Member Join Date: Jun 2006	Nice work, indeed. Show us more pictures, please. Wachara C.

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