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Message: <blockquote data-quote="Wick3D" data-source="post: 8518056" data-attributes="member: 669753">So sonic's has a sealed belva 12" 1.5cu box for dirt cheap and I've been thinking about switch to sealed for a while...I currently am running a Belva 12" 1.71 cu ported 44hz box. Fairly certain this is just a bad tune for an alpine type r, or any sub really. It sounds great right now, but i'm just not getting what I expect from 1000wrms. I listen to 99% heavy metal with the occasional eminem. I really really want some heart stopping double bass thump. Possibly need to add more than 1 12" type r, but for the time being, it's what I'm working with...My questions, is it just a myth that sealed box's thump better? Will a sealed box with proper airspace be better than a ported with improper tuning.. Will I just be wasting money on another box and not getting any better performance?</blockquote>

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