I'm building a box and want to port it. Is there a science to it or am I over-thinking this? I can post specs in the morning. I need help to finish this project.

 

there is a science to a port


i has to be a certain depth and area

lets say you want 32hz tuning in a 7 cu ft box if you eanted a port like mine it would need to have 105sq inches(35"x3") and i think it was 2 or so inches deep

no your box cant be too big, and you need to figure out a tuning(28hz is more for deep bass better sound quality, start going up but i wouldnt go past 37hz for daily, higher than that start gets into competing)

i need the specs on the box as in how many cu ft and deminsions and the tuningyou want and i can get the exact port deminsions

one wa is you can use pvc pipe from homedepot/lowes, or do it like mine, or make one out of wood and do it that way

 

i use a few box building programs and i can try to give ya a hand . they will give you the total volume of the subs need and the port sizes...

just need the specs of the speaker and what ya are looking to make
pm me and i will see what i can do

 

also what music do you listen this will help decide what you need for tuning


and when findind stuff like tuning for a box the speaker specs arnt really neccessary, except displacement

 

www.linearteam.org download WinISD Beta it will help you tune the ports you want...

Though it's a little advanced for the average person that just wants to build a box.

 

this always helped me http://www.the12volt.com/caraudio/boxcalcs.asp

 

ok here's the specs. not exactly to scale (don't bust on my mad paint skillz). the sub is a 10w3v2.The angled part faces the front of the truck like in the drawing. it will be sitting on my drivers side and i want the port to face the middle, left side of box, i.e., the opposite side of the drawing. thanks for your help guys. i built a sealed box way back in the day in high school, i have no idea on the science of porting.

 

Well, first of all, do you know what the volume of the box is?? Sure I could figure it out... but it would thinking....lol. I'm a lazy ***.

Second, I'm sure you want it to be reasonaly loud, but not too loud that you can't hear the music....

Oh, yeah and how much power are you planning for it?? RMS, not peak...

 

PEAK POWA FTW


so many curves and angles

 

im not even going to ry and calculate that right now, you have to take into account the thickness of the wood and find the cubic feet of eac section then add it all up then figure out how much space the port will take up ... blah lah

 

nvm im going to try at it...

i would have to say with no sub or port, that your in the area of 2.0-2.1 cu ft
then say .5 or so cu ft for th port, and .15 cu ft for the sub and you end up with about 1.3-1.4ish cu ft for the sub which sounds about right for a 10

 

All you have to do is find all the individual shapes, add up the area, multiply it by the width of the box then divide that by 1728 and that's how many ft3 you got.

duh-duh-duh!

I'm just too lazy.

 

hmmm, i'm still confused

btw what does FTW mean??

edit: i know it's 3/4" mdf. I just need someone to go through this step by step in a simple manner. lol. I'm reading your replies and my head is starting to spin. Thanks though, definitely.

 

FTW for the WIn

should be about 2.1 cu ft

 

Ranger_Interceptor has a great box design, go hit him up.

http://memimage.cardomain.net/member...570_7_full.jpg

Aaron

 

I was looking at that earlier today lol. It's just too big for what I want. It's definitely nice though.

 

ok, i just read all this, and im still confued on how to figure out how much space is needed, and how to figure out how much space your box has.
Im building a box for a 10 inch sub and im worried i have not made it big enough.
So far here is what i have.

its 15 inches wide. its a 13x13x18.5ish box. looks like this


I didnt want to make another thread about it, but im hoping some x-pierenced sub guys will take a look in here.

help please.

 

Damn, that's all I can say. Damn.

 

lol what does that mean?

 

I'm no expert, but man. I hope it's going to be deep enough for the entire sub. Check out the links these guys posted for me and determine the volume of your box. What type of sub are you planning on running? Dif subs need dif amounts of volume.

 

thats for sure not big enough just by looking at it.

 

anyone have a ported 10 in a reg cab??

 

If you make it Wharton this week end I could give you an idea of what to do. I have a good bit of knowledge building custom fiber glass box, door panels, kick panels for speeker. I had two 10 Stuffed be hided the seat of a regular cab 94 Toyota pickup. I built totally custom interior door panel, and Kick panels for it.

 

I ment for the weekend of the 23rd meet sorry a little tiered

 

Evan,

To determine the volume of your box, measure the hieght of the inside of the box and multiply it by the front-to-back measurement then multiply it by the width of the box-- All inside measurements of course. Then multiply the entire number by 1/2 or divide it by 2. then divide that number by 1728 then that's the exact cubic feet, besides the airspace that the subwoofer takes up.

Pretty much any size sealed box will work. Go to www.linearteam.com and download WinISD Beta. It's free and it's a pretty decent program. Just make sure when you plug the numbers in, that the Qtc is not higher than 0.9 becuase that's the limit.

When you finish building the box, go to Walmart and buy a bag of pillow stuffing that could crush your whole family for like $2.00 or so. That helps "trick" the sub into "thinking" the box is bigger.

Anything else you need, pm me.