Acoustic transfer-function of mesh?

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Joined 2003
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Hi

I got to thinking about the acoustic effects of a mesh in front of the drivers.

If the mesh is 1mm metal and the holes are 4-5mm the effects are probably minimal ( as this is standard for many PA-solutions).

But what if the mesh was much thicker? - say 20mm? and the holes were Ø30mm? I'm guessing the holes will have an resonance somewhere in the audible spectrum. Below resonance the holes will make little difference, - as long as airflow is kept below turbulence. What happens above resonance?

I'm wondering if the holes could be tuned to give a boost over a (small) range?

Most of all I'm curious 🙂. Hornresp can do a lot, but I cannot figure out how to put this one into HR.

Kind regards TroelsM