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I know... Asked too many times - regarding PORT
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<blockquote data-quote="mp3master" data-source="post: 115142" data-attributes="member: 546302"><p>I have 2 Alpine type-r's dual 4ohm.... in the next week i will be building a ported box for them. I called alpine to get some help with the tuning frequency and so on. They told me that for each sub the "Internal" volume should be 1.25 with a port 4 inches in diameter and 14 inches long. This will tune it at around 35hertz. With all these box building programs, I have not been able to figure out how this tuning frequency thing works.</p><p></p><p>So here is my question.... With both subs in one common chamber if the box is about 2.5cf... if i want to use only 1 port, what would be the dimensions for the port?</p><p></p><p>For this question to be answered, i think i left out to many variables, so just ask me what you need (number wise)</p><p></p><p>I really appreciate the help<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="mp3master, post: 115142, member: 546302"] I have 2 Alpine type-r's dual 4ohm.... in the next week i will be building a ported box for them. I called alpine to get some help with the tuning frequency and so on. They told me that for each sub the "Internal" volume should be 1.25 with a port 4 inches in diameter and 14 inches long. This will tune it at around 35hertz. With all these box building programs, I have not been able to figure out how this tuning frequency thing works. So here is my question.... With both subs in one common chamber if the box is about 2.5cf... if i want to use only 1 port, what would be the dimensions for the port? For this question to be answered, i think i left out to many variables, so just ask me what you need (number wise) I really appreciate the help:) [/QUOTE]
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I know... Asked too many times - regarding PORT
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