SPL & SQ / Fabrication

Ok so I purchased 3 SA-10s off someone on here and should get them within a week. I really wanted to build a box with a port because lots have said SA-10s really shine ported.. but i wasnt so good at figuring out all the math for the port and even worse we sucked at knowing how to build it good.. ( first box ported we made really ) So I have been looking at these circular ports like tubes you add as the port and it seems much simpler to me.. if I understand it correctly and I tried to use 12volt.com to help me figure out port length and size and stuff.. So could someone explain to me how you build a port with the circular tubing or aero whatever it is i guess? is it serio…

Hey all.I have a few questions about walls for car audio in cars.I have wanted a wall ever since i got into car audio but ive had a few concerns about them.Here are a couple of questions/concerns I have about them. 1.About how much does a wall weigh on average? ( I was told i could get a wall built in my car that would weigh about 300lbs made of birchwood.Is that possible?) 2.Is it a must to have air shock or whatever in the rear of the car (I have a 2001 Mitsubishi Galant ES 2.4L and it would cost over a grand to put airshocks in.) 3.Do you guys think my car could handle the weight of a wall? i VERY BADLY want a wall in my car and I know I will not stop fiddling with my …

So I couldn't sleep last night and decided to start designing the box I want to build for my 4 SA-10s that im getting in next week. Thought I'd post up the pics.... Also, After discussing yesterday with a few of you and trying to decide how to do port area and everything with some aero ports, I decided on the (4) 4" aero ports.. But then after I designed it and everything I realized that the tuning you guys said was about 39hz.... and Sundown recommends 30-35hz for these subs.. 39hz was like the only tuning we could get to work in order to get enough port area for my setup.. So I wanted to make sure before I buy everything and build this,.. Are the subs going to do/sound …

dont know if it is posted anywhere if so i apologize but i was wondering if anyone here is willing to give me a sweep and some test tones from 20hz to 70hz or somthing please??? i might even gift them some cash from paypal

so this last weekend i went to my first ever spl competition and i didnt meter as well as i would have hoped but people were nice enough to help me out. one of the suggestions was find the right hertz for my truck. so i was hoping someone on here has a truck like or knows someone that has a truck like mine and knows the right hertz for my truck. i have a two door tahoe i have 4 12'' ppi pcx subs in a 6.5 cubic foot box with two 6'' round ports tuned at 32 hertz. i got told that i need to make a square wooden port and it needs to be at least 18'' in length i dont know if thats right or not so id thought id ask. i plan on making another new port this weekend for my next c…

Hey guys, I am in the talks with Steve, the owner of subthump.com. They make some of the best sealed prefabbed boxes I have ever dealt with. They are simply amazing, the prices are budget friendly. Their main focus are on sealed boxes, because they aim at the people who are on a budget and they can mass produce. So I have been throwing emails back and forth and emphazised how much pupularity there is out there for the Sundown Audio SA8's. Now we all know these things shine better in ported boxes. My box building days are over and subthump is nortorious for squeezing out as much air space and the deepest depth for subwoofers. Here is my first subthump box. Ran this box in…

This will be my first wall build, I've been doing a lot of reading and looking at build logs. I should start by saying the plan is 2-3 (if I can fit 3) RE XXX 15's, on either a DC Audio 12k or Stetsom 14K. I think I'm going to go with Baltic Birch for weight and strength, I am seeing guys using 2 by 4 bracing, also seeing them use it for the back of the wall outside, what is the purpose? is it needed? what other ways would you strengthen the wall or face? the subs weigh 76lbs a piece. I was thinking 3-4 layer front face, double layer everywhere else, fully resin the box. How much bracing would you recommend? If you have pics or anything else you might recommend I'm open …

ok so i got a 4runner and im running 1000 watts for a skar vvx-10 that should be here in couple days. Howevers i built a box at 1.25 tuned to 30 hertz and too me it seems like a big box just for a single 10, so the question i ask is the box to big or not tune right for my 4runner thanks

So here's the deal. I have a Sundown 1200D, a Sundown 125.2 powering my setup. I will breeze over the 125.2 which will be hooked up to 2 sets of Polk db6501 components (2 ohm load) on each channel giving me a net of 100 watts to each speaker. I am building a CUSTOM box for a12" TC Sounds LMS-R sub. This sub can handle 1k watts continuos and 4k peak. I can wire this sub to be a 1 ohm load which is a load my 1200D can handle (giving out 1200 watts). I am trying to decide if I should port the box I am planning on building needs a port or not, and if so how long, size, ect I need it to be. I believe I correctly modeled the Treo TE sub I have now (in a ported probox) in t…

Well, i didnt think this was going to end up happening but i actually saw an Fi BTL N2 18" For $400 in my city. I was previously going to get a 15" Fi Q or BL which was going to cost me $400 shipped anyways so i cant give up this opportunity. Now in the quest for less trunk rattle, i wanted to fire my subwoofers forward into the cabin, BUT i dont have foldable seats. OhJay gave me a good idea. Use external aeroports that go through the rear deck where the 6x9 speakers go. I thought it was a great idea, something a bit different. Now i was wondering if any of you could make it happen. Iv got probably 19 inches maximum of height, probably about 40 inches of width. I…

I just bought a 18" FI BTLN2 and was wondering what is the best way to build my box. It is going in the back of a '97 nissan pathfinder. I know you need 3/4" MDF for the box but can you use 1/2"? thanks

Hey Guys, i'm sorta new to the forum so do bash me too hard I am designing an enclosure for a 21" Death Penalty. This is my 4th variation: 8.533^ft, Tuned to 33hz, Kerfed port opening, Double baffle, 1 1/2 Port bracing, 1" Dowel bracing, 121^in of Port. This is going in a 1996 Blazer, Port faced towards the hatch. I want it to as good as it can at being "musical", do you think it will sould all around good with this enclosure? Give me your opinions, thanks.

I have a Dodge Journey that I want to put 2 SX 12s in. (By the way, only have one right now, need another. Put the word out, D2) I want to have the 'right' box for it. Not one that a experienced builder can demo and know quickly that it's a crap build. I have been reading the available threads on what makes a vented box a 'good' vented box. But to honest, it seems pretty complicated. I am not a fluid dynamics student. But I am trying to learn. It is hard to narrow down my music style. It's 50/50 between hard rock like Metallica and such, and also rap/hip-hop. I know that doesn't make it easy. It will be running on a solid 2300wrms. I have the whole back available for the …

ok so i got a 2001 4runner and i need a box for a 10 downt know how much watts or even what sub yet but would slot ported be my best bet for a daily want to hit all notes but 33 or 34 hertz will be my bottom end what i want any help would be appreciated

Could anyone draw up a quick sketch for me? Car - Crown Victoria Subs - Obsidian 15s Amp - AP18001D Specs: W = 41" D ~ 21" H < 24" @30hz Daily box but going for SPL Subs up Hopefully someone can help me out

I have been approached by a customer with 4 Kicker Warhorses and 4 Kicker Solo X 18s. He is having me build a 1990 Astro van to be all out SPL. i am looking for any help in the matter of tips, tricks, pointers, etc on how to do this install. Lexan windows are already in plans. Concrete floor will be a must (how do i do this? how thick? what kind of concrete? just the cabin or all the way back?). Lowering roof (how should i do this? what should i use?). Custom Dash (what do i use? how should i construct it? what shape?). Center Counsel (should I build one? just leave it open space? what should I build it with? how should design be?). should i cover the wall floor roof dash…

I've got a pair of Kicker comp CVT65's just laying around and I thought I should do something with them. the manual says 0.2^ft sealed and well.......that sucked. wondering if anyone on here has any experience with these in a ported enclosure or any other recommendation that might make them work.

hey guys i have a box in my 2000 grand cherokee in which i had a single sa15 but now the sa15 is sold and i just bought a Zv2 15.. my box is 36.5w 14.5h 11.5d and the slot port is 3x12x19 so i know i need to make the port bigger im just not sure how big it has to be.. trying to tune it to 32 htz... any input would be wonderful thanks

There was a video I got linked with a dude talking about his SQ comp car that had liquid cooled subs and amps and a reservoir in the back?

I was bored so I went & picked up 2 12s from a flea market this past weekend to experiment with. Made my first box throughout this week & tuned it to 32hz. If I wanted to tune it to 30hz would I add or cut off some wood to the end of the ports behind the subs? I can do the math but need a starting point. Also another separate question, would more port area equal a lower tuning or does it depend on the box?

Ok so Im putting 2 12" xcons in the trunk of my grand prix gxp max dimensions are 35"W opens to 55"W 15"H 40"D. I want it ported what do you guys think would be the best box type of port which direction and so on I wont be building it but I also want the best and the builder Im using can do it. It is not a comp car however I play my music loud everyday and I want to be heard

Supp' SSA!! I am looking to build a higher tuned box for my 2 15" Fi Audio Q's. ( I know they are not made for spl) just for fun... I do 148.1db @ 45hz (30hz tunning) but looking to see what higher tunning will do. For some reason i always peak at 43-45 hz with diferent boxes/tunning and a friend also peaks at 45hz with diferent boxes on 2 12's. Is it the Tahoe's peak or something?. Both are 01/02 Chevy Tahoe's. If i tune a box to 43-45hz will it help because of what i peak at ? Thanks for the input.

Is it cheaper to buy my own MDF and make a box than having professionals at a audio store do it? I plan on having a SA-12 and a box Ported tuned to about 32hz with about 1.7 cubic ft of space. I have the measurements and such. I used the re audio box calculator. I can get help from my woodshop teacher and some friends but I'm curious if it's cheaper. Idk how much they charge at the audio store but I'm sure it's not cheap. And another thing how good is birch over MDF? I can get birch free but everyone tells me MDF sounds better. Build would be musical and everyday driver not spl. Thanks guys can't wait to hear from you all.

so im pretty new to going to competitions and competting my subs. i was just wondering if only one has any tips or tricks i could use to help gain dbs?? anything will help i just dont want to go in this competition that is coming up and not know something to help me.. i drive a two door tahoe i have 4 12's ppi pcx subs and i was wondering if i folded down my back seat and moved my subs closer to the front would that help (probably a dumd question but you never know until you ask)

Wassup everybody?! I am going to add another 18 in my gmc Sierra Ext cab and I am wondering what is the best port placement for this setup? Also they are aq hdc3 18's and it will be around a 13 or 14 cube box@ 30hz my goals are a daily ground pounder that's loud as all get out, I may start going to comps