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DIY & Tutorials
DIY For Audio
ZRT Curve project
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<blockquote data-quote="Shonver" data-source="post: 91079" data-attributes="member: 34"><p>One thing you might want to consider, then, is to make your braces from plywood, and thicken up the centre bits. I have heard it said many times that plywood performs much better in this application. Makes sense to me if one compares the construction of the two materials.</p><p></p><p>I don't know what the optimum mix is, but you seem to be playing with 3 techniques:</p><p></p><p>1) internal bracing: raises panel resonance frequency (to above operating band of the drivers using that enclosure space)</p><p>2) mass loading: lowers panel resonance frequency</p><p>3) constrained layer damping: dissipates resonant energy internally</p><p></p><p>Bracing breaks up the panel into various smaller resonant regions. Typically, with much lower Q. Best not to have divisions of similar size or multilples.</p></blockquote><p></p>
[QUOTE="Shonver, post: 91079, member: 34"] One thing you might want to consider, then, is to make your braces from plywood, and thicken up the centre bits. I have heard it said many times that plywood performs much better in this application. Makes sense to me if one compares the construction of the two materials. I don't know what the optimum mix is, but you seem to be playing with 3 techniques: 1) internal bracing: raises panel resonance frequency (to above operating band of the drivers using that enclosure space) 2) mass loading: lowers panel resonance frequency 3) constrained layer damping: dissipates resonant energy internally Bracing breaks up the panel into various smaller resonant regions. Typically, with much lower Q. Best not to have divisions of similar size or multilples. [/QUOTE]
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DIY & Tutorials
DIY For Audio
ZRT Curve project
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