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Message: <blockquote data-quote="n2audio" data-source="post: 8468474" data-attributes="member: 540940">Generally when a sealed box is smaller than ideal the low end rolls off a little faster and the freq. response becomes a little more peaky in the middle range of it's output - usually 50-70hz range.The ideal volume is 4.1.The 2.48cf box costs you about 2.3dB at 30hz and gains about 0.5dB at 70 hz.  The crossover point (where the SPL is the same) is 47hz.Effectively very little difference until you get close to 30, even then barely audible -- especially assuming some degree of cabin gain.Polyfill wouldn't be worth the effort IMO, but if it makes you feel better go for it.</blockquote>

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