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For the sound engineers
#437332 06/29/20 06:36 PM
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axiomite
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Came across some notations to this system as being 'more accurate' than measuring in an anechoic chamber for frequency response.
https://www.klippel.de/products/rd-system/modules/nfs-near-field-scanner.html

Curious if the sound engineers have opinions on it.


"Those who preach the myths of audio are ignorant of truth."
Re: For the sound engineers
chesseroo #437333 06/29/20 07:14 PM
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I want one.

Regarding far-field diffraction, I can tell you stories about temperature differences in my room that throw off imaging and soundstage. I recently thought I had tweeter problems on one of my actives. It took me a long time to establish that what I was hearing was the result of a temperature gradient in my room and not a tweeter defect.

Klippels are used routinely in many industries.


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Re: For the sound engineers
chesseroo #437334 06/29/20 09:22 PM
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Trevor, you have a Klippel, right? You're going to Klippel the M5s, yeah?


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Re: For the sound engineers
chesseroo #437335 06/29/20 09:34 PM
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Re: For the sound engineers
chesseroo #437337 06/29/20 09:46 PM
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Yep. Klippel 5000 with turbo option. Had a groupon!

Tried the test a few times. Would always get buggy and I couldnt finish before clips wouldnt play... ?

Re: For the sound engineers
chesseroo #437338 06/29/20 09:49 PM
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Hmmm...I've done the test a few times with no problems.

Gotta find me that Groupon coupon and Klippel me timbers.


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Re: For the sound engineers
chesseroo #437342 06/30/20 04:26 AM
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aficionado
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Originally Posted by chesseroo
Came across some notations to this system as being 'more accurate' than measuring in an anechoic chamber for frequency response.
https://www.klippel.de/products/rd-system/modules/nfs-near-field-scanner.html

Curious if the sound engineers have opinions on it.
Think there are less expensive ways to design this ... also
It's also something I'd build my self ... Now a days it's pretty easy.

Re: For the sound engineers
chesseroo #437343 06/30/20 02:43 PM
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I've been reading through the Klippel website. Klippel has done an excellent job on the science of electro-mechanics and electro-acoustics. They'd be a great company I think to help anyone understand what's going on with their electro-mechanical system.

Here's a great article from their website of DC displacement of the voice coil. A good example of that effect is the M100 HP drivers that I posted last year (link directly below). I consider what I did extreme and I am surprised nothing gave way on the six HP drivers that experienced the on-slaught.

https://www.klippel.de/know-how/mea...ement-dynamic-offset-the-voice-coil.html

https://drive.google.com/file/d/1-NnWo61RUvVFabKlDj0z_gd7jyYuQFpt/view?usp=sharing


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