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Message: <blockquote data-quote="Papermaker85" data-source="post: 8577134" data-attributes="member: 572595">Dude. You just cant understand i build drivers can you.The parameters tell you everything about the driver.Fyi a qms abve 7 is considered underdamped mechanically.  Coupled with a low qes i suggest a small box. Which is not ideal for alot of ported alignment when its higher than 10 unless you use a very small box.The small box kills efficecy and lowend extension.Hence spl drivers use high mechanical damping  to use the larger alignments increasing efficency drastically without having mechanical issues.The dc has a qms of 22. Id use the stiff spider and 7 cubes otherwise something like a dd 9915 with stiff spiders in 5 cubes would do better..</blockquote>

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