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Potential subwoofer enclosure material
Potential subwoofer enclosure material
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Old 31st January 2019, 07:25 PM   #1
Refindex is offline Refindex  Canada
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Default Potential subwoofer enclosure material

One of my friends works for a kitchen countertop business. She sells this solid surface product called "high pressure laminate". Appartently she claims that it could be used for speaker enclosures because of it's strength and acoustical properties. I checked it out and it's about 1/2" thick and incredibly strong and dense. Not to mention there's all kinds of colors. The only drawback is that it's pretty expensive at retail prices.

Despite the cost. Anyone think that this can be used for building subwoofer enclosures?
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Old 31st January 2019, 07:37 PM   #2
planet10 is offline planet10  Canada
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Potential subwoofer enclosure material
Only as far as adding a chunk to the top of the woofer.

For a woofer you want a very stiff cabinet with all potential resonances above the woofers stopband so that it will not produce any signal that might excite a resonance. Stiff becomes the key ingredient. Dense is counter-productive and in this case does not bring extra stiffness.

Using 12mm quality plywood (well braced) would give a better box than the 12mm solid surface material. I would suggest 15mm minimum and if you can a pair of push-push woofers to actively cancel the reactive force and drawmatically reduce box-load.

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Old 31st January 2019, 08:10 PM   #3
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Quote:
Originally Posted by Refindex View Post
I checked it out and it's about 1/2" thick and incredibly strong and dense.
Is it stiff too?
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Old 31st January 2019, 08:11 PM   #4
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Dense is counter-productive
Why?
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Old 31st January 2019, 08:25 PM   #5
planet10 is offline planet10  Canada
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Potential subwoofer enclosure material
Dense lowers a panel's resonance which is exactly the wrong direction to go. Light and. stiff is better than dense and stiff, but really stiff materials are often dense (ie stranded bamboo plywood) so people often think dense is good.

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Old 31st January 2019, 08:30 PM   #6
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I see what you mean, dense can be quite ambiguous. Dense implies heavy, when I'm not sure that's necessarily so? Anyway, I see what you're getting at
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Old 31st January 2019, 08:35 PM   #7
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Potential subwoofer enclosure material
Density is a measure of mass/volume, and says nothing about stiffness.

Carbon fibre would be a good exotic material for a sub box… and it aslo lends itself to non-rectangular boxes.

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Old 31st January 2019, 08:37 PM   #8
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Density is a measure of mass/volume, and says nothing about stiffness.
Lead for example
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Old 3rd February 2019, 07:29 AM   #9
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Yeah, need to know its MOE, which isn't listed in any of its technical specs. The pressure bonded laminate will increase it, but doubt it would raise its HDF? panel high enough without needing double thickness, though bracing could, so for folks that can do good 45 deg corners it might be worthwhile to use instead of adding laminate to an MDF/whatever cab.

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Old 4th February 2019, 12:33 AM   #10
academia50 is offline academia50  Argentina
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Maybe this will help .....

You should consider the material of the kitchen furniture as MDF, I suppose .....


12.21 What is the best material to make speaker boxes out of? Why?
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