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Enclosure Design & Construction
Custom Box for Truck; Size constraints - Help & Tips needed
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<blockquote data-quote="Doxquzme" data-source="post: 8867576" data-attributes="member: 689267"><p>Sorry , I did not see that the sides were divided by the brace. That is fine, in some ways preferable in the event that you blow one, it doesn't take the other out too (not a likely scenario). I would go with the largest recommended size you can fit. Often manufactures are looking for the biggest, loudest boom. This often means a real peaky SPL box (think large 16" floor tom instead of large bass drum), not a great sounding box. Two 12's in a truck cab is going to be substantial, shoot for the bigger, better sounding ported box, tuned no higher than 38, I'd be looking at 34 hz.</p><p></p><p>Using your split box (dual individual ported sides) 1.5 ea. side (vb 1.29) cubic feet for each side, a 4" port is going to need to be 20" long, which means you will have to use elbows to get them to fit in each side.</p><p></p><p>In a 3 cubic foot shared enclosure box (vb 2.58), two 4 " ports are the same 20" but theres is plenty of room to accommodate the port length.</p><p></p><p>Two 4" ports are not going to have as much of that port noise (farting sound if you will) either.</p></blockquote><p></p>
[QUOTE="Doxquzme, post: 8867576, member: 689267"] Sorry , I did not see that the sides were divided by the brace. That is fine, in some ways preferable in the event that you blow one, it doesn't take the other out too (not a likely scenario). I would go with the largest recommended size you can fit. Often manufactures are looking for the biggest, loudest boom. This often means a real peaky SPL box (think large 16" floor tom instead of large bass drum), not a great sounding box. Two 12's in a truck cab is going to be substantial, shoot for the bigger, better sounding ported box, tuned no higher than 38, I'd be looking at 34 hz. Using your split box (dual individual ported sides) 1.5 ea. side (vb 1.29) cubic feet for each side, a 4" port is going to need to be 20" long, which means you will have to use elbows to get them to fit in each side. In a 3 cubic foot shared enclosure box (vb 2.58), two 4 " ports are the same 20" but theres is plenty of room to accommodate the port length. Two 4" ports are not going to have as much of that port noise (farting sound if you will) either. [/QUOTE]
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Custom Box for Truck; Size constraints - Help & Tips needed
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