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Re: 2Pi Tower dampening [message #44188 is a reply to message #44185]

Thu, 18 March 2004 16:08

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

Sure can't hurt to try. The insulation is inexpensive and easy to install.

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Increase virtual size? [message #44192 is a reply to message #44184]

Fri, 19 March 2004 05:57

Dean Kukral
Messages: 177
Registered: May 2009

Master

It is counter-intuitive that adding too much insulation will increase the virtual size of the cabinet, rather than decrease it.

Would you please explain what is going on?

My understanding is that the insulation is there to minimize the possibility of standing waves. Somehow, I guess, the waves get damped by the insulation; random phase shifts, if you will. Is this correct?

TIA.

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Re: Increase virtual size? [message #44194 is a reply to message #44192]

Fri, 19 March 2004 11:04

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

The addition of the insulation acts as a resistance and also changes the speed of sound in the areas it occupies. So this has the same effect as if the box were made larger.

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Re: 2Pi Tower dampening [message #44199 is a reply to message #44188]

Fri, 19 March 2004 19:24

wasteh202
Messages: 137
Registered: May 2009

Master

OK... I will do the math

hahahahahah

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Depends on material? [message #44202 is a reply to message #44194]

Sat, 20 March 2004 09:15

GarMan
Messages: 960
Registered: May 2009

Illuminati (2nd Degree)

But Wayne, doesn't this depend on the material used for damping? I read that fibreglass insultation has the effect of increasing effective volume, but other types of foam takes up volume.

Gar.

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Re: Depends on material? [message #44217 is a reply to message #44202]

Sat, 20 March 2004 22:08

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

I've read that too. But my experience has been to always use R11/R13, so all my stuff goes up in virtual volume when you add insulation.

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Re: 2Pi Tower dampening [message #44218 is a reply to message #44199]

Sat, 20 March 2004 22:10

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

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Re: 2Pi Tower dampening [message #44237 is a reply to message #44176]

Thu, 25 March 2004 06:35

ports
Messages: 19
Registered: May 2009

Chancellor

Hi there...I was wondering exactly what is this "DYNAMAT XTREME" stuff -how does it work,where do you get it,how much is it ?Any info would be appreciated.

thanx...ports.

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Re: 2Pi Tower dampening [message #44240 is a reply to message #44237]

Thu, 25 March 2004 17:29

Matts
Messages: 359
Registered: May 2009

Grand Master

Dynamat Xtreme is made for car stereo systems to dampen the metal in the car. It's a constrained layer product, with some type of polymer and a layer of aluminum over it. I've got mine at Pep Boys, in the car stereo section. I get a pack with 2 10"x10" squares for about $20. There is a regular Dynamat that's more of an asphalt, I wouldn't use that. There's a website for it with more info. Also, if you have a CD player that's doesn't have a tank for a case, it helps tremendously in there. Really cleans up the sound a lot.

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