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<blockquote data-quote="OlogyAudio" data-source="post: 1031606" data-attributes="member: 562170"><p>Can anyone say bandpass? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif think about it -- your windows open is like having an aperiodicly loaded 4/6th order bandpass box to the outside world... with a front chamber that is HUGE and lossy.... and a small rear chamber (sealed or whatever yours happens to be) -- changing how much sd of window &#039;port&#039; there is changes the tuning frequency //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif&nbsp; if you sealed off your car from the outside world very well and put subs IB -- and ported your trunk... and messed with the tuning of the front by how many windows were down... haha think about it a real huge bandpass box&nbsp; with a TON of large subs IB... Anyone want to set some new SPL records??? XD -- the window thing being down though has alot to do with compliance though since the :rear box: is so small compared to the front box..... its messy //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif – I’ve never seen anything published on this topic but this is what my brain cranked out at 2:30 am atleast… Take it with some weight but not too much… haha //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</p></blockquote><p></p>

[QUOTE="OlogyAudio, post: 1031606, member: 562170"] Can anyone say bandpass? [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] think about it -- your windows open is like having an aperiodicly loaded 4/6th order bandpass box to the outside world... with a front chamber that is HUGE and lossy.... and a small rear chamber (sealed or whatever yours happens to be) -- changing how much sd of window 'port' there is changes the tuning frequency [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] if you sealed off your car from the outside world very well and put subs IB -- and ported your trunk... and messed with the tuning of the front by how many windows were down... haha think about it a real huge bandpass box with a TON of large subs IB... Anyone want to set some new SPL records??? XD -- the window thing being down though has alot to do with compliance though since the :rear box: is so small compared to the front box..... its messy [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] – I’ve never seen anything published on this topic but this is what my brain cranked out at 2:30 am atleast… Take it with some weight but not too much… haha [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] [/QUOTE]

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