dweebster Posted May 18, 2014 Report Posted May 18, 2014 I finish building my new subwoofer box when my sub hits a higher bass it makes a weird resonating noise but then goes to awesome clear bass after the note. What's causing it to do this and how can I fix it? the external dimensions are 14 H x 18 L x 18 D and the internal dimensions are 12.5 x 16.5 x 16.5 The port is a rectangle port is 9" tall and 2.5" wide.
dweebster Posted May 18, 2014 Author Report Posted May 18, 2014 Also the approximate cubic foot is 1.85 F^3
Krakin Posted May 18, 2014 Report Posted May 18, 2014 If it does it at a low enough volume, can you film it to let us see what it sounds like? Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener.
dweebster Posted May 19, 2014 Author Report Posted May 19, 2014 It is not very loud durning low volumes but it is present. I'll try to have a video up tomorrow.
Tarball Posted May 19, 2014 Report Posted May 19, 2014 do you have any bracing in the box? CURRENT SYSTEM: Alternator: Stock alt on mids/highs Isolated DC Power 270 SP - Charging @ 16.8v Batteries: (2) XS D1400s Power Cable: Double Runs of 1/0 KNU Kolossus Fleks Headunit: 80-PRS Sub Amp: DC 5.0k Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones Subwoofer Enclosure: 9.1cubes @ 32hz - brutal. Mids & Highs Amp: CT125.4 Active Components: Mids RE XXX 6.5c Highs - 3 RE XXX tweeters per side(A pillar) Noise Control: Damplifier Pro all over the cab. Build Log If you do business with me please leave feedback here: FEEDBACK THREAD Highest Legal Score: 151.0 db Highest Musical 30 Second Average: 151.6 db
dweebster Posted May 19, 2014 Author Report Posted May 19, 2014 Not much just 2 .75 thick 9 inch long pieces.
timc31610 Posted May 19, 2014 Report Posted May 19, 2014 Do you have pics of the box? Internal and external would be nice. Also a pic of how it is sitting in your vehicle might be helpful. My Build Log 94 Civic http://www.stevemeadedesigns.com/board/topic/188644-94-civic-4-door-build-loq-suggestions-wanted-will-be-super-slow-mo/ Faceebook reluctantly
Kyblack76 Posted May 19, 2014 Report Posted May 19, 2014 Driver screws are not tight. SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold
dweebster Posted May 20, 2014 Author Report Posted May 20, 2014 This is it in my trunk https://fbcdn-photos-f-a.akamaihd.net/hphotos-ak-ash4/t1.0-0/10389648_581996588565758_6493433276728936457_n.jpg This is it while it was being built I'll Pry it open in the morning and snap a shot of it on the inside and yes the problem is still present https://fbcdn-photos-d-a.akamaihd.net/hphotos-ak-prn2/t1.0-0/10363656_581996608565756_6733579820067005334_n.jpg
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