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Setting Gain, LPF, & Subsonic filter questions...
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<blockquote data-quote="LetMyBeatPound" data-source="post: 8608780" data-attributes="member: 673630"><p>What kinda box do you have your 18s in? I'm starting to think about ways to build a walled off box. I was thinking a 4'x5'x4' but the highest I've been able to get the tune is around 30hrz and that's basically with just an open window in box as a port. I should mention that this is going to be a 4th order build, but I'm ordering a SPL Bluetooth meter so I can figure out my resonant frequencys but this almost 100cf box seems like too much even tho it's getting a 2/3ratio si like either between 50cf ported 30cf sealed to 65 to 35 respectively... These are just ideas I'm throwing around idk if 4 fu750 18s will do good with that amount of space cuz it's alot more than recommended. Was just wondering if you had a fb or YouTube that showed your set up... You can pm it to me if your not interested with sharing it in the forum if you do have. Or would this work or would it be harmful to the subs if I had 2 fu750s and 2 fu1250s or because the are different would it me detrimental to them sharing the same sealed n ported sections of a box. I'm thinking they difference in pressure each produce may work against the smaller ones. Just curious thx</p></blockquote><p></p>
[QUOTE="LetMyBeatPound, post: 8608780, member: 673630"] What kinda box do you have your 18s in? I'm starting to think about ways to build a walled off box. I was thinking a 4'x5'x4' but the highest I've been able to get the tune is around 30hrz and that's basically with just an open window in box as a port. I should mention that this is going to be a 4th order build, but I'm ordering a SPL Bluetooth meter so I can figure out my resonant frequencys but this almost 100cf box seems like too much even tho it's getting a 2/3ratio si like either between 50cf ported 30cf sealed to 65 to 35 respectively... These are just ideas I'm throwing around idk if 4 fu750 18s will do good with that amount of space cuz it's alot more than recommended. Was just wondering if you had a fb or YouTube that showed your set up... You can pm it to me if your not interested with sharing it in the forum if you do have. Or would this work or would it be harmful to the subs if I had 2 fu750s and 2 fu1250s or because the are different would it me detrimental to them sharing the same sealed n ported sections of a box. I'm thinking they difference in pressure each produce may work against the smaller ones. Just curious thx [/QUOTE]
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