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4th order experiment


nicor6

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Posted

hey guys..I have seen a lot of 4th order enclosures lately on the forums and on youtube and it looks like everybody is happy with 4th orders, I have tried searching around and it seems if you get the design wrong it can really sound like crap and damage equipments..Well here in my country i have NEVER personally heard or seen any 4th order systems..I really want to try one and experiment... can somebody help out with a design? it will be for a 12" pioneer
TS-W310S4

if theres any designers willing to help i would really appreciate it!

Posted

That sub will probably do well in a 4th but since Pioneer isn't forthcoming with all the TS parameters for their subs, it's pretty much a trial and error affair to build a box for them.

Here's a starting point:

For SPL;

Vr = .75ftⁿ

Vf = 1.5ftⁿ

Fb = 43 Hz

Vent = 12.5in² (4" PVC) x 9.15"

For SQ;

Vr = 1.5ftⁿ

Vf = .75ftⁿ

Fb = 43

Vent = 7in² (3" PVC) x 11.25"

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Posted

Don't forget to mention to not fire the sub directly at the port to avoid possible unloading ;)

Offset that port so it isn't in the path

Im not the one you want to try to troll. Just a fyi for you.

Posted

thank you for the help guys! can anyone of you offer a design that you think will work well? i know it consume time to make a design so i wouldnt mind if it comes up with a fee :)

Posted

I'm sorry, I don't do cut sheets. I'm an old man who's been building from rough sketches forever and I haven't bothered learning Sketchup.

I did play with it one day and in the time it took me to draw three panels, I could have built an actual box. ;-P

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Posted

I'm sorry, I don't do cut sheets. I'm an old man who's been building from rough sketches forever and I haven't bothered learning Sketchup.

I did play with it one day and in the time it took me to draw three panels, I could have built an actual box. ;-P

lolz crazy ass old man :D jkjk. I agree... though with my last build had I done a quick sketch up session I could have found the problem I had very quick... sketch up is a nice tool to have... especially if the customer or person you are building for really wants to see exactly what the plans look like. or if you are dealing with a shipped order... but generally a good pencil sketch and a good mental picture is good enough... especially if that's how you like to work... it could mean a faster turn over and less time spent on a project.

<img src=http://i1332.photobucket.com/albums/w610/beastly666bassboy/IMG_9611192581855_zps9b9b76be.jpg border=0 alt= height="75" width="800">

Growing old is necessary... growing up is an option! Have fun or you might as well fall into a 6 foot deep hole. Its much easier to be smart and act stupid then it is to be stupid and act smart! You're only limited by your imagination! Stop limiting yourself! Optima yellow top6 guage cableJVC KD S36 headunitPower acoustik 1600w 750w rms @2 ohmsTwo MTX thunder 7000 10"sSealed box @4.04 ft^3Mojo Mat in the trunk Coming soon:1/0 awg cablebig 3... in 6 gauge(till i can get the money for 0)planet audio Crossover.2- 3.5's for the front.2- 6.5's for the doors2- 6x9's for the rear3- MB Quartz amps to power it all.1- 6" aeroport...soon! <p>My Log!

Posted

Don't get me wrong, I'm not knocking Sketchup. Just saying that I haven't used it enough to be proficient at it.

I'm sure I'll have to at some point when someone is paying me to build a box but I haven't had that problem as yet, and I've been building boxes for longer than a lot of the members here have been breathing. ;-P

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Posted

as with everything it has its down side and its bright side... I like the program but it is quite time consuming. personally right now I hate it... mostly because the computer I have it on is having hard drive issues :D so I'm like ehh its a head ache bahahah

<img src=http://i1332.photobucket.com/albums/w610/beastly666bassboy/IMG_9611192581855_zps9b9b76be.jpg border=0 alt= height="75" width="800">

Growing old is necessary... growing up is an option! Have fun or you might as well fall into a 6 foot deep hole. Its much easier to be smart and act stupid then it is to be stupid and act smart! You're only limited by your imagination! Stop limiting yourself! Optima yellow top6 guage cableJVC KD S36 headunitPower acoustik 1600w 750w rms @2 ohmsTwo MTX thunder 7000 10"sSealed box @4.04 ft^3Mojo Mat in the trunk Coming soon:1/0 awg cablebig 3... in 6 gauge(till i can get the money for 0)planet audio Crossover.2- 3.5's for the front.2- 6.5's for the doors2- 6x9's for the rear3- MB Quartz amps to power it all.1- 6" aeroport...soon! <p>My Log!

Posted

sorry op for the thread jack... back to topic lmno

<img src=http://i1332.photobucket.com/albums/w610/beastly666bassboy/IMG_9611192581855_zps9b9b76be.jpg border=0 alt= height="75" width="800">

Growing old is necessary... growing up is an option! Have fun or you might as well fall into a 6 foot deep hole. Its much easier to be smart and act stupid then it is to be stupid and act smart! You're only limited by your imagination! Stop limiting yourself! Optima yellow top6 guage cableJVC KD S36 headunitPower acoustik 1600w 750w rms @2 ohmsTwo MTX thunder 7000 10"sSealed box @4.04 ft^3Mojo Mat in the trunk Coming soon:1/0 awg cablebig 3... in 6 gauge(till i can get the money for 0)planet audio Crossover.2- 3.5's for the front.2- 6.5's for the doors2- 6x9's for the rear3- MB Quartz amps to power it all.1- 6" aeroport...soon! <p>My Log!

Posted

Don't forget to mention to not fire the sub directly at the port to avoid possible unloading ;)

Offset that port so it isn't in the path

dont forget he can move the effen port if he dont like it.....

j/k OP

if you fire sub directly to the port it can damage it

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