SPL & SQ / Fabrication

i am looking to build a wall in my envoy.... it will be a 4 15 woofer setup and i need a minimum of 16 cubes to make it epic..... what type of port do i need and i would like it to be tuned to about 38 hz but i mainly listen to rap so i am considering 32 hz as well...thank you

I'm currently thinking about building a box for a 12 btl with both the sub and the port aimed into the cabin, sealing off the trunk from the cabin. I have looked at tons of boxes doing this but they all port on either the right or left side of the box. I often have 4 people in my car so this would mean the seats would have to remain up giving the port very little room to breath. My middle seat has an arm rest that comes down and my idea was to have the box port right there so that i can just put the arm rest down and give the port a place to breath. My question is can i port the box in the middle and place the sub to either the right or left of the port. I don't have a i…

this is ALTONS post "FYI the box is EXACTLY in the middle of the specs Fi gives for the 12" Q's. Fi recommends 1.8 to 2.4cuft as optimal for a 12" Q, 3.6 to 4.8 for two obviously. If you notice the notes I specifically mention 4.2cuft NET which means before displacements, there's nothing wrong with the space I've given for the Q's." and i STEALTH said "actually net means after displacements. gross is before. lol" ALTON said "taken directly from the dictionary buddy: gross    /groʊs/ Show Spelled [grohs] Show IPA adjective,-er, -est, noun,pluralgross for 11, gross·es for 12, 13; verb –adjective1.without deductions; total, as the amount of sales, salary, profit, etc., be…

Hi all, I have 2 boxes that ive built and i am in the process of testing. ->build log here<- they both have the same interior volume and tuning and all that good stuff. so the internal volume is about 2.45 cuft with a tuning of ~34 hz with about 40 sq inches of port each. now i had a box that was 2.5 cu ft tuned to 34 hz with 39 sq inches of port and didnt get much overexcursion. so heres my problem. on low notes like 28-34 hz the sub barely moves and creates ALOT of sound, im very shocked by this. but when you get to like 36-40 hz the sub reaches its limits of excursion and anything above 40 its just bottom out city! im very scared about this because in the o…

I have an re sx15d4 in a box that is 2.9 cu ft gross w/2 3" wide 10" long aero ports. I will be running an saz1500d @2 ohms into this sub. I want the best sq I can get from this sub. So I'm looking for box recommendations. Right now I'm looking at building a 4.2 cu ft box tuned to 34 hertz with a slot port facing the back of my jeep and the sub firing up. I used the box calculator to design the box.

Can anyone give me a fairly straight forward design for a bandpass box for two 5 1/4" woofers? I like the one i have, but it is uber ghetto (Current Box) I would like to have it peak around 28-30hz for chopped and screwed music, but maintain some punchiness on higher notes. Box size isnt really an issue, the one i have currently is around 9in tall, 4ft long, and 3ft wide. I like the style of mine, the way it is laid out, chamber, port etc so anything similar would be perfect (i might use a plexi top; If i do go with the plexi, i'm spraying the insides flat black). I will build it myself, out of 3/4" mdf and some bracing. Only requirements are is that it must be at most 12…

MY buddy drives a 2008 regular cab silverado..... He has a matrix 12' that is a fairly beefy subwoofer..... if im correct his amp is 1000 watt This weekend we plan to build a box like Fi-Ford Console/Enclosure...STEALTH - SSA Car Audio Forum Has built for trucks.... My question is.... WE plan on just doing it sealed to begin with... I think with this small of a truck it will be just fine and loud enough.... If he is no satisfied if we were to use like 1 or 2 tubes of pipe to port it would it in any way mess up the subwoofer or anything... ( could we vary the sound by length of the port in the box what size pipe would be best... ) also... if we do it either…

looking for some info on a spl ported box design for 2 15" dc level 4 or where i may look into getting one built????

Every one says that the re-calculator is off so can someone here help me design a box for a 12 BTL Here are my max demensions 15h x 28w x 18d......I would like the box as close to 2.5 after all displacements as I can tuned to 32hz (sub disp is .18) Thanks to anyone who can help.

This is my first box design and I just wanted someone to check over it and make sure it's accurate. It's for a hdc3 18 on a bxi2010 in a 96 Blazer. The box specs are 37.5w, 21.5h, 21.5d, port width is 6", port length is 6", 6 cubes tuned at 36hz.. Thanks.

Howdy SSA. Haven't been on here in forever. OK so I am looking to create an interchangeable port system for my box. Here is the layout of the box: (Feel free to steal the design) Playing around with my little box designing sheet, I thought about making a system where I can remove an appx 7 inch section of the port wall and insert some custom made plugs to lower the volume of the box. This would be just to switch things around. Now does anyone have an idea of how i can create a moveable port wall? I thought about a slide-in design (a hole cut in the top of the box that would let me slide the wall down in like a dam wall) or maybe a system of rails. I'm just looking for so…

ok ,so i got a box (not really square, its a pentagon) made out of 3/4mdf , i got 5.09 cubes of air space with out the sub in (sub its a 15"fi btl) how big of a rectangular port do i need ? its this called port area ?? i had planned to have it 12.5wide x 5tall x 24 long... tuned to 33hz... does this sound rigth ?? please help me out...

I have 4 12" RF Punch Z's in a sealed box. There are 4 different chambers in the box, one for each sub. (Approx 1 1/2 cuft each) I'm wanting to port this box to make it louder with PVC aero ports. My questions are: 1) Should I put a different port for each chamber/sub? or Should I take out the walls between each chamber and just port the whole box as one? 2) How big of PVC pipe will I need to effectively port the box? Id like the tuning to be as close to 30-35 hz as possible. Doesn't have to be an EXACT tuning 3) Where should I put the ports? Here's a couple pictures to help with what the box design is:

ok, so i have the dimensions for everything, but i want to make sure if its all good, also if someone could do a sketch of it? 2 - 15" nightshades 1 saz-3500D 99 s10 ext cab subs forward, port in the middle firing up but along the back wall of the box. box height - 27 depth - 14.5 Length - 46.5 Port height - 6 width - 16 length - 26.25 net air space 6.68ft3. port area 96.00 in2. @32.19

I am just dreaming here. I plan to upgrade my substage, but due to a lack of cash, this probably wont be for another year or so. im just kinda tossin around ideas. I want to have a system that is "Clean n Loud", not geared specifically towards SQ or SPL. I listen mainly to rock, metal, but on occasion rap and R&B (so basically everything). I have a decent sized trunk but the entrence to said trunk is very small, hindering what can fit into it..... So far i am thinking of three ideas that would fit. The first would be to run 2 10" SSD's in a ported box, tuned to ~30 hz, the second would be to run 2 12" SSD's in a sealed box. Any recomendations on these two? Like i sa…

So Im designing a new enclosure and have come across a speed bump. Using the12volt slot port length calculator with these numbers: 24, 4, 6.13, 32= 33.13in Using carstereo.com port length calculator with the same numbers for a square slot port= 21.13in But when you change the option of slot port from yes to no, the new calculation is exactly 33.13in Why do they not match for the same thing? Shouldnt a square vent be shorter than a slot port? Did carstereo.com just flip flop them or something? Am I taking crazy pills or what?

So i am building a new box as of this moment i have 2.5 net volume without any sub displacement or any thing. The driver is 1 RE SE12 . My desired tuning frequency is around 32-34 hz. I want to know what the port diameter and length i have tried some calculators but they are to long for the enclosure.

Anyone ever used plum ceek Mdf to build a box out of? I was thinking of trying some.

Hi It just got to my head that I should probably get rid of the box I have and make one myself. The one I have was bought from a shop and I dont even know what it is tuned to or the cubic foot. From the outter measurements, Im calculating 1.75-1.80 cubic foot. Here are the measurements of the current box I have my Pioneer TS-W3002D4 Well, basically I want my own box so that I know the exact tuning and size. First, I would like to know if its good to have a 12" tunned to 32Hz since thats what I want to have my box tuned at. 32Hz with ~1.80cubic foot AFTER subwoofer displacement. I would prefer to have subwoofer AND port facing the same way and box measurements ~15-16inche…

So I got this 30$ subwoofer which I bought 3 year ago and it still plays good and I like it. But the box what it has now I was told is too small and tuned very high(indeed it does not hit the lows very good). I have no information about its xmas, vas, FS ... etc. It says 900W max (maybe 150w real ) 12 inch Thunder. Model BC1250RD I want something to listen to my music till I get money for NSv2 ( rap and some bass tests... so low tuning around 34Hz). Here are some pics. My fail box. Yes I know I don't need polyfill for a ported box. Port is 4.7 inches radius , long around 5-6 inches. So help me forum. I was told by a pro I should go with 2 - 2.25 cub ft , 15 sq inch r…

What wood glue iis best to use and caulking should it be hard or more elastic like for sealing?

I am planning on running 2 15" HDC3s (copper) and im either planning on doing a slot port in 8cubic ft tuned to 36hz with 2 AQ2200 OR I've been thinking about doing a wall, about the same size or bigger, tuned to the same (i think) -- I'm thinking the wall will give me more output/power??? - thats what i need to know I have a 86 s15 and this would be my first time for a wall, so i dont have a lot of info/knowlage on walls. -im rushing to go to class, i know im lackin info and mispelled words thanks dom

I am going to make a box with aeroports for a 15" Fi Q powered by a SAZ-1500. My deminsions that I have available are 34"x30"x14". I was able to get 4 4" aeroports with both sides flared from someone which should fit in the 12-16 of area per cubic foot. I was looking at a box that had outer deminsions of 32"x28"x13" to get just over 4 cu. ft. after sub and port displacements tuned to 32 hz. After doing the calculations for the box I have found out that I am suppose to use 29-30" long aero ports and that will not be able to fit so I was thinking of tuning a little higher. I was wondering what is the rule on the distance the aeroport should be from the back wall so I c…

I seen on a build log this guy put 8" subs in his doors for mid bass. He didnt use a box or anything but a adapter so the sub can be mounted. - i am thinking about doing this to my s15 but i imagined that the sub will need the right enclosure to play good. So it leaves me with the question.. will an 8inch sub play good in a door without anything but an adapter for the sub to be mounted. I cannot ask him how it sounded because i dont remeber where the log was. -thanks Dom.

For my next set up I'm thinking of running an active 3 way system. I would like to run an Sax-125.2 or a Sax100.4 whichever is better for a 3 way setup. My budget its slightly fixed anywhere from 200-250 for the 3 way set up. This will be going into a 4 Door Explorer. I typically listen to anything from Rap to death metal to spoken word; I would like a system that is well versed and able to transit from genre to genre with ease. Also to be able to reproduce it accurately but also i need something loud to be behind 4 15's. I am able to fabricate things; i have fiberglassed and know how, also i have access to many tools. I need to start off finding Tweeter, Midrange, and a…