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Old 15th February 2007, 08:16 PM   #1
diyAudio Member
Join Date: Jan 2006
Location: the netherlands
Default bg neo10 clone

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

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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Old 26th February 2007, 07:13 PM   #2
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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.
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Old 28th February 2007, 04:52 PM   #3
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Join Date: Nov 2002
Location: Grantham, NH
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.

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Old 28th February 2007, 09:51 PM   #4
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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: 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
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