Speaker perforations
Speaker perforations
(OP)
Hello everybody,
Is there someone who has a physical explanation about the impact of the perforations in the speakers plate, on the sound pression field ??
What is te correlation between the density of perforations and wave lenght ?
Thank you
Is there someone who has a physical explanation about the impact of the perforations in the speakers plate, on the sound pression field ??
What is te correlation between the density of perforations and wave lenght ?
Thank you





RE: Speaker perforations
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Speaker perforations
This link contains some pictures of what i am talking about :
https://www.google.fr/search?q=grille+haut+parleur...
Cheers
RE: Speaker perforations
However they also act as mini Helmholtz resonators, and there is also the possibility of mass loading coupling between the air and the grill. It's a complex subject.
Here's some measurements, I'm not going to lose any sleep over 1 dB
http://www.rjbaudio.com/Audiofiles/grill%20frame%2...
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Speaker perforations
RE: Speaker perforations
RE: Speaker perforations
Actually it's clear that people use this grille for the protection of the loudspeaker, but what i want to understand is the impact of this feature on the sound pressure level, among large band frequencies.
Otherwise, i'm planning to pick up some measures in order to clarify that.
RE: Speaker perforations