SPL & SQ / Fabrication

Hey there! I need serious help building a ported box. Ive never had, nor built a ported box and i want to see for myself what the difference is. Ive tried every different box calculator i can find, but im sad to say there a little too complicated for me to understand. Im a rookie when it comes to car audio specs. Im a pro at listening tho lol. I want to learn more, a lot more, but everyone close to me dont want to teach, they want to charge. i could easily build a sealed box, but i really want to port my subs. I have 2 lethal injection 12's. I need 4 cubes, 60 square inches of port and i want it tuned at about 32hz. Space is not an issue. I took the back seat out of my ra…

I have a zvx12 and a sk800.1 I need box advice I want to invert it in a 2000 durango, need advice seald or ported what size box do u think I should go with any advice would be great thanks

I have designed a box for a friend of mine. He also has an 86 F150. He heard my system and wants to use my type of subs. The pioneer TS-SW3041D. I have designed a box for him and just wondering if it will be optimum for the speakers. Heres a quick drawing i did in paint: Can someone here that has a proper box building program plug the specs in and tell me if this box would be good to use, or that i should start back over. Any and all help with be greatly appriciated. Thanks in advance, Scott

just wondering how accurate it is or if it is super basic for the noob http://www.accelerator-pedal.com/ported-box.asp

My buddy had talked to me about building a box for his F-150 for 2 12" Xplods. Looking around I think it may be possibly to get 5 Cuft. (or very close) for the 2 12s. behind the seat I was curious what is the best way to face the ports and sub. I think the only way to face the the ports is up, but I do have the option of either down facing them down or foward. What is generally best practices for SPL?

Okay, Im not much of a box-builder. Nor do I know any of the concepts to box-building. I was wondering for my MAW-15's, Which I'm putting in a 4.0 ^3cu. ft. box sealed, When I get the box built does it need to be two independent chambers with 2 cu ft on each side or 1 big 4 cu ft. box. I wasn't sure what if that had an effect on the subs and/or their performance. Thanks in advance. ~MadroX

I need a box for two AA Mayhem 12s, and Ive got the external dimensions, trunk dimensions, port lengths and everything. I just need someone to build it because I am in the Army Active duty living in the barracks and I cannot build a box, I need to order one. Please post if you know if a website, or if you know of someone that can build me one. Greatly appreciated guys!

We Started today, with this. Enclosure in and playing. But ALL the pressure goes right to the back. Took the woofers out. 2 DC Lv4 XL 18"s. Picture of how large the gap is. Supplies Mocking up the start of the seal. Sealing up the bottom Priming Port for red paint. Then, red paint. Cutting out 1/2 MDF to make seal. Driver side sealing done!! Starting on passenger side. Making sure boot stays in place. ALL DONE........ Until suede tomorrow. P.S. This is the truck. and just so it's known, this is his just a toy. Nissan BEFORE Wall seal This is his daily. McGauhy's 2/4 Drop, Ls3, Magna Flow Dual Turn down's.

i switched to the Pap Moabs 2-15" and switched to a set of batterys 8v & 6v tied in sieres do a 14.97v and im not sure if it was the batterys or the subs that made the differance so im going to put the 2-15" SoundStream back in the boxx and see if that is the cause of the 2db drop or the batterys ? i need a bigg@ss battery charger...too cook the batterys to 20v and try agine !!! any input is welcome the guy grinning to the left in the background is my friend BEN we put his 2-15" Mtx 9500 subs in my old boxx & he beat be with my own boxx by 1.6db / 150.6db the boxx was built for street beat @ 35Hz his peek was 46Hz

I have always been a sealed box guy,so I have NO idea how to tune a box. That being said,how much port do I need in a 1.25ft box with DCON 10????? Will be for daily use playing mostly rock/metal. I was thinking 40-45hz maybe? Please correct me if I'm thinking wrong.

I tried to search for this, but couldn't find what I'm looking for.. I drive an '06 KIA Spectra. I'm having good luck with a Rockford P3 dual 2 15" in a slot ported enclosure, tuned to about 32HZ. I'm running that with a Cadence ZRS7000D. I understand the machanics behind sealing off the trunk, but I've never listened to sealed off trunk car. I'm wondering if they are purely for muscle, or can they be musical? Is it worth putting in the effort if I don't drive around with my seat folded down?? My poor trunk can't handle the pressure!

Hey guys! Just made a video showing how to create a subwoofer enclosure in Google Sketchup! Go ahead and check out the video and let me know what you think!

Ported SA does this make sense? Hey guys iv been searching back and forth between forums to calculate my box as close as possible. Before I spend more time and most importantly money on my design I'd like to know if I'm on the right track. Any help would be greatly appreciated Box width - 24 Box height -11 Depth 1- 8 Depth 2- 8.5 Total Net - .835 Port measurements Height - 3 Width- 3.5 Length - 29.64 Now when i put that port in the calculator it says my total net will be .653 the sa 8 calls for .5-.75 ported so I guess I'm right in the middle the other forum I used says that port will have the boxs original net volume of .641 ft3 tuned to 36 hertz Does this seem to be co…

I am in the process of building my car and I am wanting to do something different. I started out with 3 solox 12's but traded them for 2 solox 18's. I have 4 crunch Gp3000d's to use but I only have 18 cubes total to use. So i thought of using only one solox 18 with 2 GP's in a 4th or 6th order bandpass enclosure. This is for daily and maybe a once in a while bass race/street beat run. Would it be better to run 2 18's ported or one in a bandpass? If a bandpass how big sealed and ported.

ok, as some of u know, my first wall i tore out to make room to lay frame. well once the bags are done, wall is getting rebuilt. right now, its gonna be the 4 15" mts, hella close to the front seats, with the port on the top, and the 4 15's under that. i sat in that guy john's van with the 16 12" ssd's, and it was loud. you guys think i should build my wall like a diamond type thing, something like galactic monkey is doing, or just a straight up wall like im doing? itll be tuned around 35 hz. this was my old wall: never heard it either my floor after airbags will be sorta like this:

Is there any audible difference between using a enclosure that's using a (sub forward, port forward) and a (sub up, port forward) enclosure. I'm thinking of several options for my first system

So i have decided to build a custom box for my 2 10in type-s alpine subs. I found an equation on JL audio's website to tune a box and have been playing with numbers for about an hour now. Everything looks good to me i just want to have someone double-check to make sure im not screwing things up. The outside dimensions of the box are 11.5X31.5X20.5in. Using 3/4in mdf that would leave me with 5700 cub inches inside to work with. there will be a single vent, 10in tall and 1in wide, going in 5.5 inches. after subtracting the volume of the 2 boards used to create the vent and the 2 subs( 86.4cu in each), ill be left with roughly 5444cu in of internal volume. with the equatio…

I'm designing a new box and have a sort of kink in my design. I'm looking to do a baffle with a 30 degree angle in it. Now the issue with this that I do not know the clearance for the sub since it will be angled downwards. It is a 15" Havoc (standard basket), and I just wanted to know if anyone had any ideas about the clearance. I basically need to know how far above the bottom of the baffle the sub needs to be to clear the bottom piece. Thanks!

I've always painted my sub boxes and thought i might try giving carpeting a go. I was wondering where you guys buy you carpet from? I'd like something cheap, but of decent/good quality. (doesnt everyone. lol) Thanks in advance

I have been trying to decide whether or not to go smaller with my box build. All of my buddies that are a little old school when it comes to spl say big boxes are the way to go... But when talking to people I compete with such as TJ in his Yugo doing 52's he says go smaller. My current box is 3.68 cubic feet after driver displacement, but not port displacement. 69 sq inches of port tuned to 42 hz. The woofers are two TC sounds OEM 10". I am thinking of shrinking down to a triple front baffled, double walled 2.4 cubic feet gross, and using 2 4" aero-ports and slightly raising my tuning as the change in box orientation changed my resonant, and building the wall (in the trun…

W'sup guys, i'd like a little assistance on my box build. I'm doing revisions 2 my blowthrough in my 99' s-10 and need help on port size. My box will consist of 2 12" orion hcca's and will be 14.5" tall, 43" wide, and i'm not sure as 2 how much depth i'll need. I'm still in the process of learning how 2 calculate port size so assistance with this will be greatly appreciated. I currently have a blowthrough with a bandpass box formulated from Pete at hexibase. I've been trying 2 get him 2 help me construct a ported box but he's busy as hell and i've been trying 2 contact him for like 2 months with no reply. Can u guys possibly assist me? Thx alot.

I have a Hummer H3 with dual Sundown sa-12D4's running off a Hifonics BRZ1700.1 with 145 amp alt, big 3, 0 gauge, 8 gauge power wire for the speaker wire. I have them in a box with dimensions 38x21.25x14; .75 mdf. The port is 12.5x4.5x31.5 long. I have made the port longer and shorter and can't seem to get it to peak around 34hz. It sounds like it is peaking around 38 or so to me. I have built many single sub boxes, and all of them end up being just about perfect, but I can't seem to get this dual box to sound correctly. I have made 3 different boxes trying to get my box hitting the lows well, but can't seem to do it. Could somebody please help me to get the right …

Ok my buddy has 2 Audiobahn Flame Series AW1251T 12

I am looking for a box builder in the Louisville Ky area. I live in the Jefferson-town (J-Town) area (40299-3520) of Louisville Kentucky & I was wondering if any of you guys would know or recommend any box builders in the Louisville Kentucky or Southern Indiana Area. I just want someone who is good at what they do & will give me a fair price. I figure that cutting out shipping costs will save me at least $100.00 & with someone local they can actually see my car & build what I am actually looking for. Thanks Mike

Hello, I am looking for some help on whether I should do a sealed box, ported or slotted enclosure for my SA-8 V.2 SPL Dual 2OHM. For now, I'm putting a Sony Xplod XM-GTR2022 amp on it. Which runs 500RMS when bridged. I want to build the box slotted preferably, unless you guys give me enough reason to just do a sealed box if its going to be a better setup. If anyone out there already has some plans for a box they have built for their SA-8 V2, shoot them over to me! I'm open to pretty much anything right now. Im putting this sub in a Kia Forte Koup. Working with 19"Hx32"Wx13"D Thanks SSA!