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-   -   Open-Baffle Subs – “Subwoofer Origami” (http://www.diyaudio.com/forums/multi-way/230007-open-baffle-subs-subwoofer-origami.html)

otto88 14th February 2013 06:38 AM

Open-Baffle Subs – “Subwoofer Origami”
 
Did you guys see this?

A good overview of (I think) 11 dipole configuratuions

Subwoofer Origami

many ways to skin the cat

Thanks, John Reekie

gainphile 14th February 2013 09:12 AM

How could this be patented ie. 'ripole'. It's like a linkwitz w frame to me !

capslock 14th February 2013 09:44 AM

I believe this is not a full engineering patent but more an industrial design patent, similar to what Apple used against Samsung, claiming their phone looked too similar to an iphone.

Elias 14th February 2013 09:53 AM

Quote:

Originally Posted by gainphile (Post 3369362)
How could this be patented ie. 'ripole'. It's like a linkwitz w frame to me !

Ripole has a side hole where the magnet sticks out, Linkwitz W frame doesn't have it. In patent talk they are completely different :p

Rudolf 14th February 2013 09:59 AM

Quote:

Originally Posted by gainphile (Post 3369362)
How could this be patented ie. 'ripole'. It's like a linkwitz w frame to me !

It's not about whether YOU see a difference. It's about the patent officer seeing a difference. ;)

Rudolf

markus76 14th February 2013 10:13 AM

Quote:

Originally Posted by gainphile (Post 3369362)
How could this be patented ie. 'ripole'. It's like a linkwitz w frame to me !

They are similar but not the same. Axel Ridtahler (which is a very nice guy by the way) and Linkwitz were in contact when the Ripole came out. Send me a PM if you want to get in contact with Axel.

I do use 2 Ripole subs in a near field configuration.

otto88 14th February 2013 12:40 PM

IIRC, John the author suggested that a Ripole is:

- the most compact dipole subwoofer,
- with lowest Fs possible

Though the radiation pattern moves away from a dipole

marrkus, do you think yours have those attributes?

markus76 14th February 2013 12:55 PM

1 Attachment(s)
Quote:

Originally Posted by otto88 (Post 3369542)
marrkus, do you think yours have those attributes?

Yes. You can't pack two 12" woofers any smaller.

http://www.diyaudio.com/forums/attac...5&d=1360850047

lolo 14th February 2013 12:57 PM

Hi Markus, so the measurements were for a ripole, not dipole?

markus76 14th February 2013 01:05 PM

Quote:

Originally Posted by lolo (Post 3369567)
Hi Markus, so the measurements were for a ripole, not dipole?

Which measurements?


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