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Opposed subs?
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<blockquote data-quote="1aespinoza" data-source="post: 8896200" data-attributes="member: 654802"><p>Wait, you lost me here. In all setups the subs fire in the same direction. When clamshell mounted or mag to mag, one of the subs is wired in reverse polarity. The air between both subs gets pushed back and forth acting as added "weight" along with the cones.</p><p></p><p>I think I see where the confusion is. Both pictures you posted are the same setup. They are a pair of subs sharing an enclosure regardless of direction. If you were to wire one of those subs in reverse polarity, you would get cancellation. In an isobaric setup, the cone area is the same whether you use 2, 3, or 4 subs. Since those subs are all "pistoning" in the same direction, I assume the box has to be smaller to control the extra force presented by multiple subs in the same cone area. May have something to do with the law of hydraulics if that is a thing.</p></blockquote><p></p>
[QUOTE="1aespinoza, post: 8896200, member: 654802"] Wait, you lost me here. In all setups the subs fire in the same direction. When clamshell mounted or mag to mag, one of the subs is wired in reverse polarity. The air between both subs gets pushed back and forth acting as added "weight" along with the cones. I think I see where the confusion is. Both pictures you posted are the same setup. They are a pair of subs sharing an enclosure regardless of direction. If you were to wire one of those subs in reverse polarity, you would get cancellation. In an isobaric setup, the cone area is the same whether you use 2, 3, or 4 subs. Since those subs are all "pistoning" in the same direction, I assume the box has to be smaller to control the extra force presented by multiple subs in the same cone area. May have something to do with the law of hydraulics if that is a thing. [/QUOTE]
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