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Buck Box Designs - New Picture Log
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<blockquote data-quote="Buck" data-source="post: 8734548" data-attributes="member: 591582"><p>Yep. The only time I like separate chambers is with sealed boxes. Just had to do with woofers fighting each other and knowing exactly the airspace each sub is getting. Sometimes it doesn't matter, but I like to divide up sealed chambers, if I can. I mean you could imagine the pressure of a box when 4 like 30mm xmax woofer push in and they were all pushing in on one sealed chamber with 6000 watts or whatever. Some subs may not like that amount of sealed pressure. </p><p></p><p>With sealed boxes, if you have 2 10's right? If you put them in .5 a piece vs 1 cube in a shared chamber, the 1 cube in the shared chamber with resonate a little lower, even though each sub has the same airspace. It just has to do with an overall larger airspace with sealed will cause a lower sealed resonance, vs splitting up the sealed chambers. It's fairly minimal, in most cases I feel like. But what that indicates to me is large single chamber sealed boxes need to be overall smaller than 1 chamber per sub boxes, because the larger sealed chamber clearly acts slightly larger than multiple individual chambers at the same airspace.</p><p></p><p>You sort of see the same thing with port area and bigger boxes. Bigger ported boxes typically don't need as large of a port as smaller ported boxes, by a little bit. It's just physics. Like a 6 cube 18 box will tend to have a lower port velocity than say a 1 cube ported 10 box if it's the same style woofer and the tuning is the same and the port area is the same. Has nothing to do with the woofer or the Fs of the woofer. Has to do with strictly the box size.</p></blockquote><p></p>
[QUOTE="Buck, post: 8734548, member: 591582"] Yep. The only time I like separate chambers is with sealed boxes. Just had to do with woofers fighting each other and knowing exactly the airspace each sub is getting. Sometimes it doesn't matter, but I like to divide up sealed chambers, if I can. I mean you could imagine the pressure of a box when 4 like 30mm xmax woofer push in and they were all pushing in on one sealed chamber with 6000 watts or whatever. Some subs may not like that amount of sealed pressure. With sealed boxes, if you have 2 10's right? If you put them in .5 a piece vs 1 cube in a shared chamber, the 1 cube in the shared chamber with resonate a little lower, even though each sub has the same airspace. It just has to do with an overall larger airspace with sealed will cause a lower sealed resonance, vs splitting up the sealed chambers. It's fairly minimal, in most cases I feel like. But what that indicates to me is large single chamber sealed boxes need to be overall smaller than 1 chamber per sub boxes, because the larger sealed chamber clearly acts slightly larger than multiple individual chambers at the same airspace. You sort of see the same thing with port area and bigger boxes. Bigger ported boxes typically don't need as large of a port as smaller ported boxes, by a little bit. It's just physics. Like a 6 cube 18 box will tend to have a lower port velocity than say a 1 cube ported 10 box if it's the same style woofer and the tuning is the same and the port area is the same. Has nothing to do with the woofer or the Fs of the woofer. Has to do with strictly the box size. [/QUOTE]
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