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<blockquote data-quote="Beginer" data-source="post: 3060482" data-attributes="member: 573150">Well this is 1/4 wave formula but I don&#039;t trust in it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifBecause basically this freq. should be your cabin resonant freq. but it&#039;s not.And also not all box peak 10Hz higher than they are tuned. It can be and 5Hz, 7Hz...Smaller box peak is 3-5Hz higher than tuning freq, and larger box peak is 5-10Hz higher than tuning freq. But it&#039;s also theoreticaly. You need to test boxes, play with tuning freq. etc.I tryed to build sealed box and find cabin resonant freq. with TL and it wasn&#039;t freq. which I got with 1/4 wave formula...I don&#039;t think that 1/4 wave formula works. Maybe in theory yes, but not in practical.Or maybe I&#039;m wrong.. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</blockquote>

[QUOTE="Beginer, post: 3060482, member: 573150"] Well this is 1/4 wave formula but I don't trust in it [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Because basically this freq. should be your cabin resonant freq. but it's not. And also not all box peak 10Hz higher than they are tuned. It can be and 5Hz, 7Hz... Smaller box peak is 3-5Hz higher than tuning freq, and larger box peak is 5-10Hz higher than tuning freq. But it's also theoreticaly. You need to test boxes, play with tuning freq. etc. I tryed to build sealed box and find cabin resonant freq. with TL and it wasn't freq. which I got with 1/4 wave formula... I don't think that 1/4 wave formula works. Maybe in theory yes, but not in practical. Or maybe I'm wrong.. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] [/QUOTE]

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