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<blockquote data-quote="newusername" data-source="post: 1977011" data-attributes="member: 562064">well, you&#039;re riding the right train of thought //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifnear Fb, excursion will be extremely limited in a ported enclosure and BL will dominate output.&nbsp; below Fb, the sub begins to unload quite quickly and excursion shoots through the roof.in a sealed enclosure, excursion is the cause of virtually all output.&nbsp; in theory, a sealed enclosure could be best for spl.&nbsp; the only issue is that there is no driver with enough excursion to combat the efficiency of a vented enclosure.a large excursion sub may be better suited for a sealed enclosure to make use of that excursion; at the same time, a ported enclosure that limits excursion can be beneficial as it keeps BL based distortions to a minimum as more of the coil is in the gap.just like all audio, it&#039;s about sacrifices.</blockquote>

[QUOTE="newusername, post: 1977011, member: 562064"] well, you're riding the right train of thought [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] near Fb, excursion will be extremely limited in a ported enclosure and BL will dominate output. below Fb, the sub begins to unload quite quickly and excursion shoots through the roof. in a sealed enclosure, excursion is the cause of virtually all output. in theory, a sealed enclosure could be best for spl. the only issue is that there is no driver with enough excursion to combat the efficiency of a vented enclosure. a large excursion sub may be better suited for a sealed enclosure to make use of that excursion; at the same time, a ported enclosure that limits excursion can be beneficial as it keeps BL based distortions to a minimum as more of the coil is in the gap. just like all audio, it's about sacrifices. [/QUOTE]

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