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Calculating Aero Port Length
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<blockquote data-quote="Wiz Khalifla_85" data-source="post: 8659697" data-attributes="member: 656489"><p>UPDATE: NEW DIMENSIONS (previous enclosure size does not fit through trunk opening)</p><p></p><p>31 x 15.5 x 18 (W x H x D)</p><p></p><p>My goal is to tune at least 3.5cubes at 30hz</p><p></p><p>Port area seems very low on a single 4" aero 7-8inches long. Equals to about 12.56 of port area. That's 3.33 per cube.</p><p></p><p>Single 6" aero 19inches long gives me about 28.26 of port area. 8.10 per cube. Sounds better but this forces me to vent out the side. My plan was driver and port on baffle.</p><p></p><p>If I go with two 4" areo's 16inches long I'll have 25.12 of port area. 7.05 per cube. With this design the inside flare is almost 1in from the back wall.</p><p></p><p>Tuning higher will correct these issues but I don't want to loose 27hz, 28hz, 29hz,30hz output.</p><p></p><p>Anyone have any suggestions or experience?</p></blockquote><p></p>
[QUOTE="Wiz Khalifla_85, post: 8659697, member: 656489"] UPDATE: NEW DIMENSIONS (previous enclosure size does not fit through trunk opening) 31 x 15.5 x 18 (W x H x D) My goal is to tune at least 3.5cubes at 30hz Port area seems very low on a single 4" aero 7-8inches long. Equals to about 12.56 of port area. That's 3.33 per cube. Single 6" aero 19inches long gives me about 28.26 of port area. 8.10 per cube. Sounds better but this forces me to vent out the side. My plan was driver and port on baffle. If I go with two 4" areo's 16inches long I'll have 25.12 of port area. 7.05 per cube. With this design the inside flare is almost 1in from the back wall. Tuning higher will correct these issues but I don't want to loose 27hz, 28hz, 29hz,30hz output. Anyone have any suggestions or experience? [/QUOTE]
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