fleasbaby
Member of the Trade: Wabi Sabi Headphones
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OK, I'll give it one last try to help you understand (before I turn the thread into a physics class)
You got me wondering about the DT880, K701, HD600 etc. here they are........
Sorry if I do not see anything that resembles the Nhoord narrow slots openings, all the above have some huge openings in comparison.
Keep in mind that diffraction occurs when you pass a wave through a SLOT.
Back to the Audeze example, Audeze HAD to found a way against diffraction (in the form of the Fazors) because the plannar drivers, by design, have magnets in front (and/or back) of their diaphragms that forms slots the sound wave HAS to pass through,
In a dynamic driver however that is not the issue, magnets are only at the back.
Here is what happens with the slots....
Left side is diaphragm, producing a coherent sound wave (black thick vertical lines), Yellow line is the Nhoord cover with the slots (just two illustrated, with multiple slots it looks worse) passing the sound wave.
Each slot, right at their exit now acts as an independent sound source ruining the coherent initial sound wave, so, why on earth would you want to put a diffraction causing "element" in front of a dynamic driver diaphragm?
Hope it's clear(er) now.
We're almost there . I see how the drivers I referenced have larger spaces, not slots. I saw their bars as having the same effect as the bars over the Nhoord driver, even though there were less of them, and they are skinnier. So the fact that they are skinnier means less disturbance. Makes sense.
How is a slot different from a hole though? Wouldn't a series of holes next to each other break up the wave just like a slot? I guess I need to see a front view the blue and yellow animation....