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Enclosure Discussion & Design Construction Help Have questions about enclosure design neeed some help thoughout your build, ask here.


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Old 04-07-2015, 06:21 PM
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Default Box for four sundown e8v4

I was wondering if anyone else is running the e series 8s and what has worked as far as box size. Right now I'm running four e8v4s in a common chamber box with 3.2 cubes after displacement with a 6" aeroport tuned to 32hz on a hifonics brx2000.1(I know it's not the best amp but it's what was in the budget) optima yellow top with big three. Subs are running at two ohms so I'm hopping im getting around 1200 watts or so(supposed to do 1400rms but not sure if it really is) about 300ish per sub. I'm at right around 9inches of port per cube. I'm not getting port noise or anything and it sounds good but I'm just wondering if a better box is/could be in the near future. I'm new to 8s so not really sure if they like smaller boxes vs large.these are pretty much the same as the sa8v1 just sundowns "budget" brand. Any advice or info would be appreciated. Oh and it's in a extended cab f150 back seat is out so space isn't a huge issue but is somewhat limited. Thanks for any help.
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Old 04-09-2015, 05:42 AM
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3.2 cubes @ 32 hz, with a single 6" Aeroport should be fine. I don't think you would gain much by changing the ported enclosure size, with the stated input power. You could possibly gain from building a 4th order...

Design yourself an enclosure, and plot out the frequency response graph yourself... Speaker manufactures give out the Thiele Small parameters for a reason... They do this so that you can get an idea for how your subwoofer is going to respond in the enclosure you are building for it. Here is a handy web page, explaining what Thiele Small parameters are.
Page Title

Now, for a a list of free enclosure designing programs. Here is a list of several different enclosure design programs. Find one that works for you, and research it's features, so that you can figure out which one best fits YOUR needs. WinISD is an easy one that alot of people use.
SpeakerBuilding.com - Software

Lastly, here is the TSP specs for your Sundown Ev2 8 subwoofer.
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