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<blockquote data-quote="l_spade" data-source="post: 1985944" data-attributes="member: 567780">I have made many sealed boxes and (except for my first one) they have all turned out great. Sealed boxes won&#039;t win me any contests so i need to learn how to build ported boxes. I have made a few blueprints for 2 old systems of mine but they were to the exact specifications in the manuals for the subs. And this is where I become confused. Here are some questions that I have:1. If the port length, width, height is stated in the manual do I have to use them in order to get the full potential out of the subs??2. If not what are the things you have to look at when building a ported box.3. How do you know what to tune your box to for a certain subwoofer???2. What happens if I would make a box for two subs in the same air space? Would I have to double the height, width, legth of the port? Or triple them if I have 3 subs?? Or how on earth is that done???Holy crap i am so lost that I don&#039;t even know what questions to ask. I have so many questions but I don&#039;t know how to ask them. If you guys have any suggestions to where I can learn a lot about this stuff please tell me. I would just ask for a design and then build it but that is kind of like cheating and I want to be able to say, &quot;ya, it is all my handy work&quot; when my friends asked who did it //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif.EDIT: and if you guys could recommend any good box frequency calculators I would appreciate it. Thanks</blockquote>

[QUOTE="l_spade, post: 1985944, member: 567780"] I have made many sealed boxes and (except for my first one) they have all turned out great. Sealed boxes won't win me any contests so i need to learn how to build ported boxes. I have made a few blueprints for 2 old systems of mine but they were to the exact specifications in the manuals for the subs. And this is where I become confused. Here are some questions that I have: 1. If the port length, width, height is stated in the manual do I have to use them in order to get the full potential out of the subs?? 2. If not what are the things you have to look at when building a ported box. 3. [B]How do you know what to tune your box to for a certain subwoofer???[/B] 2. What happens if I would make a box for two subs in the same air space? Would I have to double the height, width, legth of the port? Or triple them if I have 3 subs?? Or how on earth is that done??? Holy crap i am so lost that I don't even know what questions to ask. I have so many questions but I don't know how to ask them. If you guys have any suggestions to where I can learn a lot about this stuff please tell me. I would just ask for a design and then build it but that is kind of like cheating and I want to be able to say, "ya, it is all my handy work" when my friends asked who did it [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG]. EDIT: and if you guys could recommend any good box frequency calculators I would appreciate it. Thanks [/QUOTE]

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