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<blockquote data-quote="Volenti" data-source="post: 6217246" data-attributes="member: 566487">The bottom line on dacron (or anything else that provides resistive damping) is that it will reduce resonance, reducing resonance can make an enclosure sound better, but it will never, ever increase absolute output, you need to increase resonance if you want more output with the same driver and power.But don&#039;t take my word for it, play with different packing setups, and see the results for your self.(edit to clarify) there are 2 effects happening, one is the thermal effect that makes the box &quot;appear larger&quot;, this is a real effect and does actually happen. However, it is actually pretty subtle, in a sealed optimally packed enclosure the difference can amount to only 3-4hz difference between packed and empty. What swamps this is the second effect, which is resistive damping, that can have quite a dramatic effect and can reduce the amplitude of a resonant peak by half or more.So yes you can indeed increase the apparent enclosure volume, but at the same time you cut your resonant peak in half, that will murder your spl score.</blockquote>

[QUOTE="Volenti, post: 6217246, member: 566487"] The bottom line on dacron (or anything else that provides resistive damping) is that it will reduce resonance, reducing resonance can make an enclosure sound better, but it will never, ever increase absolute output, you need to increase resonance if you want more output with the same driver and power. But don't take my word for it, play with different packing setups, and see the results for your self. (edit to clarify) there are 2 effects happening, one is the thermal effect that makes the box "appear larger", this is a real effect and does actually happen. However, it is actually pretty subtle, in a sealed optimally packed enclosure the difference can amount to only 3-4hz difference between packed and empty. What swamps this is the second effect, which is resistive damping, that can have quite a dramatic effect and can reduce the amplitude of a resonant peak by half or more. So yes you can indeed increase the apparent enclosure volume, but at the same time you cut your resonant peak in half, that will murder your spl score. [/QUOTE]

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