posted
i was tuned @40hz peak on tl was 43hz built same box tuned @50hz should have peak @52 or 53 but peak was @47hz and went down in spl why??????
-------------------- now with (TEAM LOW BUDGET)148.1db @43hz and gaining slow lol. street B setup 2000 4 door s-10 blazer 2-mojo 12's powered by 2-bxi1610d's burp box not built yet. add me to myspace if you want atv_man2007 Posts: 96 | From: paintsville ky | Registered: Jul 2008
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posted
you tuned too high for the vehicle and/or enclosure.
try adding port length to bring your tuning down to where its loudest.....try adding 1" of legth between test's.
once youve found the peak of that box, try a bit larger box with same layout for sub and port......dont build drasticaly larger, maybe just 0.1 ft^2 then retune the port. if your final number is louder than the first box then go a bit bigger, if not then go a bit smaller than the first box.
posted
how can you tune to high for the enclosure ? more port length went from 18'' to 6'' could this be the issue not enough air in port?
-------------------- now with (TEAM LOW BUDGET)148.1db @43hz and gaining slow lol. street B setup 2000 4 door s-10 blazer 2-mojo 12's powered by 2-bxi1610d's burp box not built yet. add me to myspace if you want atv_man2007 Posts: 96 | From: paintsville ky | Registered: Jul 2008
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posted
You adjusted the port length from 18" down to 6" in the same volume box?
Posts: 570 | From: streetsboro,oh | Registered: Jun 2005
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posted
yes 18 to 6 i use winisd i kept same volume just retuned the port.
-------------------- now with (TEAM LOW BUDGET)148.1db @43hz and gaining slow lol. street B setup 2000 4 door s-10 blazer 2-mojo 12's powered by 2-bxi1610d's burp box not built yet. add me to myspace if you want atv_man2007 Posts: 96 | From: paintsville ky | Registered: Jul 2008
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posted
that is the issue....although you changed the "port" tuning, the enclosure volume also has a tuning frequency. the smaller the box (depending on cone and port area) the higher the frequency.
Once you find "through testing" the proper port tuning for that box volume, try a different size box and retune the portlength and see if your spl increases or not.
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