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DIY For Audio
subwoofer port help please
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<blockquote data-quote="Timber_MG" data-source="post: 1095992" data-attributes="member: 18"><p>One can build a passive radiator by adding mass to a speaker driver. Where a subwoofer driver might have a Fs of 30Hz for argument's sake, you can drop that to perhaps 10Hz..where the PR will have a bit of a steeper roll off compared to an air port. You can lower fs by adding weight, either with a bolt or by casting a filler behind the dust cap for example. One just needs to take care that the spider doesn't sag if it is used in a vertical orientation.</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 1095992, member: 18"] One can build a passive radiator by adding mass to a speaker driver. Where a subwoofer driver might have a Fs of 30Hz for argument's sake, you can drop that to perhaps 10Hz..where the PR will have a bit of a steeper roll off compared to an air port. You can lower fs by adding weight, either with a bolt or by casting a filler behind the dust cap for example. One just needs to take care that the spider doesn't sag if it is used in a vertical orientation. [/QUOTE]
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DIY & Tutorials
DIY For Audio
subwoofer port help please
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