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Can someone explain to me what is vacuum in a subbox.
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<blockquote data-quote="hispls" data-source="post: 8771975" data-attributes="member: 614752"><p>Bracing by the woofer in the box shouldn't matter at all and having to brace inside or right at the mouth of a port is not optimum, but sometimes you have to do it. If you must add bracing inside the port use something round and as small as possible so that it interferes with air movement within the port as little as possible. </p><p></p><p>Round port is much more resistant to flexing so should not require obtrusive bracing and if you're using a slot port just doubling up the thickness of the port walls should firm them up without hindering air flow.</p></blockquote><p></p>
[QUOTE="hispls, post: 8771975, member: 614752"] Bracing by the woofer in the box shouldn't matter at all and having to brace inside or right at the mouth of a port is not optimum, but sometimes you have to do it. If you must add bracing inside the port use something round and as small as possible so that it interferes with air movement within the port as little as possible. Round port is much more resistant to flexing so should not require obtrusive bracing and if you're using a slot port just doubling up the thickness of the port walls should firm them up without hindering air flow. [/QUOTE]
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Can someone explain to me what is vacuum in a subbox.
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