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<blockquote data-quote="Lakota" data-source="post: 4732926" data-attributes="member: 559574">Try different firing positions for both the subs and ports.&nbsp; Also experiment with different box volumes both by building boxes of multiple volumes and putting objects (such as landscaping blocks) in the box to decrease volume.&nbsp; Aeroports work really well in SPL testing because it&#039;s very easy to change the tuning and you can run them externally.&nbsp; A few rules of thumb:&nbsp; keep the opening of the port as far away from the sub as possible.&nbsp; This means to design the box to make it as slim as you can in order to get the port as far away from the sub as you can.Some examples:<img src="http://img.photobucket.com/albums/v231/Lakota/100_1361.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://img.photobucket.com/albums/v231/Lakota/100_1351.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://img.photobucket.com/albums/v231/Lakota/100_1346.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="Lakota, post: 4732926, member: 559574"] Try different firing positions for both the subs and ports. Also experiment with different box volumes both by building boxes of multiple volumes and putting objects (such as landscaping blocks) in the box to decrease volume. Aeroports work really well in SPL testing because it's very easy to change the tuning and you can run them externally. A few rules of thumb: keep the opening of the port as far away from the sub as possible. This means to design the box to make it as slim as you can in order to get the port as far away from the sub as you can. Some examples: [IMG]http://img.photobucket.com/albums/v231/Lakota/100_1361.jpg[/IMG] [IMG]http://img.photobucket.com/albums/v231/Lakota/100_1351.jpg[/IMG] [IMG]http://img.photobucket.com/albums/v231/Lakota/100_1346.jpg[/IMG] [/QUOTE]

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