bg neo10 clone

NurEinTier · 15th February 2007, 09:16 PM

The new bg neo10 coupled with a bg neo3 and a woofer should make a great speaker.

http://www.bgcorp.com/news.read.php?article_id=11

However it doesn't look like the neo10 will be made available to the general public.
Or maybe it will but with an enormous price tag.
I'm guessing anything under 100,- euro would be wishfull thinking.

I asume nobody saw them up close so the following question is ....well stupid is all I can think of.

What are the chances of a n00b building a clone of the bg neo10.
Maybe someone experienced did allready?
Something that will go down to 300hz.

speakergeek · 26th February 2007, 08:13 PM

It's possible. Get a Neo8 and reverse engineer it. Then make it bigger.

The hardest part will be cutting out the detailed foil trace pattern and adhering it to the kapton/mylar. A lot of fine work with an exacto knife would be required, and one slip and you start over. I can think of ways to make this easier, but still very labor intensive. Then you need to create a frame for the magnets and some sort of mounting / tensioning method for the membrane.

The key to the Neo8 (and 10s) is the close tolerances of the traces and magnet structure. They have managed to create a manufacturing process that maintains these tolerances at a reasonable price. Thus the price / performance of the BG product is excellent. It may not be worth DIY to save money. Only for the education and experience.

stokessd · 28th February 2007, 05:52 PM

Eminent technology did fine traces on the diaphragms of the LFT-VI's that I had. I'm 99% sure that they glued down solid foil and then etched the portions away that they didn't want. That's the way I'd attack the problem.

Sheldon

speakergeek · 28th February 2007, 10:51 PM

Etching the diaphragm would be a good solution especially if you wanted to do more that a few pairs. You might even be able to get prototype quantities from a Flexible Printed Circuit manufacturer. These guys have specs here: http://www.allflexinc.com/capa.shtml for etched polymide (kapton) down to 1/2 mil thick. I just don't know if they will do aluminum traces - copper is too heavy for planar diaphragms.

By the way, rumor has it that David Graebener of B&G has some new planer / ribbon drivers in the works http://blog.speakergeeks.com/index.p...-max-fidelity/

15th February 2007, 09:16 PM	#1
NurEinTier diyAudio Member Join Date: Jan 2006 Location: the netherlands	bg neo10 clone The new bg neo10 coupled with a bg neo3 and a woofer should make a great speaker. http://www.bgcorp.com/news.read.php?article_id=11 However it doesn't look like the neo10 will be made available to the general public. Or maybe it will but with an enormous price tag. I'm guessing anything under 100,- euro would be wishfull thinking. I asume nobody saw them up close so the following question is ....well stupid is all I can think of. What are the chances of a n00b building a clone of the bg neo10. Maybe someone experienced did allready? Something that will go down to 300hz.

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26th February 2007, 08:13 PM	#2
speakergeek diyAudio Member Join Date: May 2006	It's possible. Get a Neo8 and reverse engineer it. Then make it bigger. The hardest part will be cutting out the detailed foil trace pattern and adhering it to the kapton/mylar. A lot of fine work with an exacto knife would be required, and one slip and you start over. I can think of ways to make this easier, but still very labor intensive. Then you need to create a frame for the magnets and some sort of mounting / tensioning method for the membrane. The key to the Neo8 (and 10s) is the close tolerances of the traces and magnet structure. They have managed to create a manufacturing process that maintains these tolerances at a reasonable price. Thus the price / performance of the BG product is excellent. It may not be worth DIY to save money. Only for the education and experience.

28th February 2007, 05:52 PM	#3
stokessd diyAudio Member Join Date: Nov 2002 Location: Fort Wayne, IN	Eminent technology did fine traces on the diaphragms of the LFT-VI's that I had. I'm 99% sure that they glued down solid foil and then etched the portions away that they didn't want. That's the way I'd attack the problem. Sheldon

28th February 2007, 10:51 PM	#4
speakergeek diyAudio Member Join Date: May 2006	Etching the diaphragm would be a good solution especially if you wanted to do more that a few pairs. You might even be able to get prototype quantities from a Flexible Printed Circuit manufacturer. These guys have specs here: http://www.allflexinc.com/capa.shtml for etched polymide (kapton) down to 1/2 mil thick. I just don't know if they will do aluminum traces - copper is too heavy for planar diaphragms. By the way, rumor has it that David Graebener of B&G has some new planer / ribbon drivers in the works http://blog.speakergeeks.com/index.p...-max-fidelity/

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