baffle dampening

skogs · 28th July 2009, 12:59 PM

When sound is reflected from the baffle, a small time delay occurs, when the sound passes the baffle and reflect from f.ex the wall, a bigger time delay occurs. By using a big baffle, the time delay is "minimized", but its still there, and a lot of people dont like the sound of wide baffle designs.

My idea is to make boxes or even pipes that just big enough for each driver (as small baffle as possible), and then make a wide baffle, out of foam! This way any reflection causing time delay is minimized.

Could this work? Has this been tried before?

Telstar · 28th July 2009, 01:48 PM

Yup, check Vandersteen speakers.
He also time-align the boxes.

skogs · 28th July 2009, 04:42 PM

Hey, thats som really interesting reading on the vandersteen home page. Thank you! I'm gonna try experimenting with these techniques!

But i'm going to try adding a foam baffle, maybe with a layer of "Acustilux" damping material on top. The goal is to minimize the rear wall's affection on the sound from the speaker. Think this could work?

Telstar · 28th July 2009, 05:08 PM

Quote:

Originally posted by skogs
But i'm going to try adding a foam baffle, maybe with a layer of "Acustilux" damping material on top. The goal is to minimize the rear wall's affection on the sound from the speaker. Think this could work?

It's an OB? In that case i prefer felt on the back. Dunno acustilux.

skogs · 28th July 2009, 05:42 PM

it's not an OB, all drivers will have its own enclosure, made out of the same kind of pipes people use for sonosubs, only smaller. The purpose of the dampening will be to minimize diffraction\reflections.

28th July 2009, 12:59 PM	#1
skogs diyAudio Member Join Date: Oct 2006	baffle dampening When sound is reflected from the baffle, a small time delay occurs, when the sound passes the baffle and reflect from f.ex the wall, a bigger time delay occurs. By using a big baffle, the time delay is "minimized", but its still there, and a lot of people dont like the sound of wide baffle designs. My idea is to make boxes or even pipes that just big enough for each driver (as small baffle as possible), and then make a wide baffle, out of foam! This way any reflection causing time delay is minimized. Could this work? Has this been tried before?

28th July 2009, 01:48 PM	#2
Telstar diyAudio Member Join Date: Dec 2007	Yup, check Vandersteen speakers. He also time-align the boxes. __________________ The response of the inner ear extends to at least 200khz - Dr W. Tempest

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28th July 2009, 04:42 PM	#3
skogs diyAudio Member Join Date: Oct 2006	Hey, thats som really interesting reading on the vandersteen home page. Thank you! I'm gonna try experimenting with these techniques! But i'm going to try adding a foam baffle, maybe with a layer of "Acustilux" damping material on top. The goal is to minimize the rear wall's affection on the sound from the speaker. Think this could work?

28th July 2009, 05:42 PM	#5
skogs diyAudio Member Join Date: Oct 2006	it's not an OB, all drivers will have its own enclosure, made out of the same kind of pipes people use for sonosubs, only smaller. The purpose of the dampening will be to minimize diffraction\reflections.

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