How accurate is it for building a regular porter enclosure? Nothing fancy just port on one side, sub(s) on the other?
How accurate is it for building a regular porter enclosure? Nothing fancy just port on one side, sub(s) on the other?
2007 Black Diamond FJ Cruiser with Box built by Pro-Rabbit
H/U Kenwood DNX6960
Sub: 1-18" Zv3 with NS coils and cone Sub Amp: Mmats 2100.2
Front Stage: Hybrid Audio L6 mids, SEAS Neo Tweets, SAX 100.4, RF 3sixty.2
Bought From: Rio, davidtemple, Bassin Buick, Pro-Rabbit, Kangaroux, KyleBechtold Traded With: WhiteDragon551 Sold To: jdmeklove, Kpozr2, 97accordalpine
It's not terrible if you know how to use pen and paper to double check it before you start building. I've used it and had it be very accurate. I've used it and have it be off by a good bit. So if anything, I suggest using it to get a rough idea, then double check. Don't forget it doesn't account for woofer displacement either.
*Sundown Z15 *SAX-1200D *CDT HD-61A *SAX-100.4 *Pioneer DEH-80PRS *KnuKonceptz *XS Power D3400 *270A Mechman
Sold to: blackbonnie, TheOneJordan, resko1, kr15, Zichardruniga, IBmikexxx, plugitin
Bought from: Gruszka530, theMessenjah44, ltr450racer690, Dpc69ss, 97maxima(Here and ROE), Pillow(CACO), pro-rabbit, woofercooker, Twisted_0912
I don't think it is very accurate. It says that my box is bigger and tuned lower than it really is. You are better off using winisd and doing the math yourself.
Head Unit: Alpine 9887
Amps: MB Quart DSC4125 & ONX1.1500
Fronts: Hifonics ZXI6.5cs
Sub: 12" IDMAX (2.5@32hz)
refs: Peaks, Spencer321, bernser1er, smiley2186, bikinpunk, massiveaudiocw, loudexpedition, us3
Is there a link that explains how to do the math?
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Simple EDU: How to design a ported box
remember that you are working with INTERNAL dimensions
Head Unit: Alpine 9887
Amps: MB Quart DSC4125 & ONX1.1500
Fronts: Hifonics ZXI6.5cs
Sub: 12" IDMAX (2.5@32hz)
refs: Peaks, Spencer321, bernser1er, smiley2186, bikinpunk, massiveaudiocw, loudexpedition, us3
it doesn't give accurate cut dimensions either
2006, Chevy HHR
Pioneer 80PRS, FOCAL-100KRS set active- Stereo Integrity TM65 midbass - sub- Focal 27KX sub, (2) ALPINE-MRV-F540 (1) Alpine-MRD-M1000, DLS 2way comps rear fill
I'd never use it...
2,500+ designs since March 2011
Ok I have WinISD and have mu numbers and graphs, but how do you use the information to design my box? What numbers am I looking for.
Gain:
Phase Plot:
SPL:
Group Delay:
I see that on the subwoofer window you can change the volume and tuning frequency, vents, plot, etc.
I know what the volume and tuning is for...internal volume and desired tuned frequency but doesn't the frequency change depending on the box dimensions? EX. (not real numbers) If a 2 cf box 24x12x12 with a 2" port, length 18inches is tuned to 34hz, would the tuning be the same as a 2cf box 28x11.25x11 with a 2" port, length 18inches?
Or should I just be using WINISD for the graphs? If so what am I trying to achieve, a certain point where free meets db's?
Sorry for all the questions. I think its very interesting how people can design the boxes tuned to certain frequencies and would like to learn to do it myself.
2007 Black Diamond FJ Cruiser with Box built by Pro-Rabbit
H/U Kenwood DNX6960
Sub: 1-18" Zv3 with NS coils and cone Sub Amp: Mmats 2100.2
Front Stage: Hybrid Audio L6 mids, SEAS Neo Tweets, SAX 100.4, RF 3sixty.2
Bought From: Rio, davidtemple, Bassin Buick, Pro-Rabbit, Kangaroux, KyleBechtold Traded With: WhiteDragon551 Sold To: jdmeklove, Kpozr2, 97accordalpine
worked great for my box build
You just have to realize that it isn't going to take into account the displacement for the woofer(s), bracing, 45's, double-baffle, etc...
2,500+ designs since March 2011
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