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DIY & Tutorials
DIY For Audio
A Sub is born
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<blockquote data-quote="Timber_MG" data-source="post: 9109" data-attributes="member: 18"><p>If I may just recommend that you measure your native response with the driver and do a modal analysis of problem frequencies to see whether you can avoid putting wadding close to the ports (also goes experimentally if you have a quick means to remove the driver and some means to measure (for comparative measures any suitable mic and freeware such as Arta will do nicely)</p><p></p><p>The issue is a trade-off between losses at the tuning frequency and resonance above tha band of the sub. Damping is most effective where the modes present velocity maxima (i.e not at the cab walls and in the port it isn't an option due to resistive losses).</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 9109, member: 18"] If I may just recommend that you measure your native response with the driver and do a modal analysis of problem frequencies to see whether you can avoid putting wadding close to the ports (also goes experimentally if you have a quick means to remove the driver and some means to measure (for comparative measures any suitable mic and freeware such as Arta will do nicely) The issue is a trade-off between losses at the tuning frequency and resonance above tha band of the sub. Damping is most effective where the modes present velocity maxima (i.e not at the cab walls and in the port it isn't an option due to resistive losses). [/QUOTE]
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DIY & Tutorials
DIY For Audio
A Sub is born
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