SPL & SQ / Fabrication

alright. ive got the dimensions. i have 2 options of building this. its kind of going to be trial and error until i find the right height i want the desk to be, but here it goes. the box needs to be 4.5 cubes each (2 seperate boxes) and tuning...im guessing like 20ish or 24hz or something? 95% of the time its for rap music. once in a blue moon i may watch a movie on it. but for the most part, i want it to sound best on rap music. the dimensions im working with are 39" x 37" (width and length) using those 2 dimensions, i need to see how high it will be to make 4.5 cubes after determining the tuning and port length, etc. if i like the height, ill build the box using that wi…

Hi, Just wanted to know if anyone is going to the DB Drag World Finals. We may be competing this year providing we hit our target SPL score which is 160db. We currently compete in Street C and are hitting 1580DB in the UK. Are there any street competitors here on the forum? What are you hitting at the moment and what do you hope to be hitting at the World Finals if you're attending?

Ok so i hear a lot "the bigger the box the better." Then some manufacturers recommend small boxes. So what is Correct? Also advantages to bigger ported boxes vs recommended size ported. Also what is a good tuning for ports, or what do you use?

lookin for some competitors who have some experience with 4th orders so i can get a glimpse on starting on my own testing efficiently

Im in need for ideas for I my 1975 El co. I just purchase a 12" Zcon was planning on putting it behind my seat. i would like it tuned about 32hrtz with a kerfed port. My spacing is 18Dx7.5(small side for drive shaft.)15Hx30W. im going to cut out the the metal to get my depth and with if needed. Im gonna be using nendo bc2200. I will b using the car as a cruiser but if i need to turn it up and put the kids to sleep at car shows i want that loud and low sounds. I listen to new and old school rap but mainly R&B hip hop is my style. I want the sopund that people in my area are saying impossible for my ride. Please Advise.

I am starting my wall build soon; I think I have a general idea on how to go about it. I

Currently I have a 15" zcon in a 4th order bp ported through rear deck. Going to be getting 2 12" zcons and trying to think of what kind of box to start on. 4th . 6th. Ported with trunk sealed off? Which ever one I chose I'm going to be porting through my rear deck.. I think I can get about 9 or 10 cubes if I pretty much Max the trunk out .which I could do... Just seeing if anyone has any opinions on anything that will help me make up my mind? If you got any questions just ask. Going to be running 4 - 5k. Maybe a little more. Wanting to get started a.s.a.p. thanks.

Hello my fellow SSA dudes, I'm looking to get a blow through bandpass design for 2 18" fully loaded BTL's. My truck is a 1986 GMC S15 and i will be powering them with 2 AQ2200. (if i can fit more BTLs lets do it!) Dimensions: Front to back - 6ft (72 inches) Left to right - 4ft 10inches (58 inches) Tailgate opening - 4ft 3inches (58 inches) Up and down - 1ft 3inches (15 inches) Wheel well to wheel well - 3ft 3inches (39 inches) Thanks Dom. P.S. (To my fellow SSA dudes) - sorry again you have to see my threads about this subject.. just trying to get some help!

im not that good with google sketchup, but i was wondering which design would be better for a trunk setup porting through the rear deck? 33d 17h 35w with three 6" aero ports two sundown z 15's saz-3500d

Double post.. sorry Hello all . Im in beginning stages of design for my 2002 PT Cruiser Enclosure. This will be my first year competing in the lanes for SPL. I know its correct to have a daily box and a burp box, but I would like to get as close of a mix in one box as possible. My initial thoughts would be to have subs facing up and slot port facing up as well because of the lack of room. So far I am just looking for any advice I can get. Max Dimensions: 39w x 20h x 14d. Would prefer port in between subs but If it doesnt make a difference, im flexible. Am I on the right track? Any help would be appreciated.

Hi, i am looking for Street A class. My install is: Two amp EM-PHASER EA1800D, and two ALPINE SWR1042D. today i was build box 2.3f^3 (65l) and port at 45hz~ cross area 43.25in^2 (280cm^2) at 19.6in (50cm) long. so my result now is 147.4dB at 54hz. i have about 5kW at 0.5ohm linked amps (99.1V*51.7A). in Lithuanian street A class we can use one amp or two linked. so with open door result is 148.2. Somebody have an ideas how can I do more batter result?

So tomorrow I'm going to begin building my enclosure for 2 10" Skar IVX's. I'll just be running these as a temp. setup on a BRZ 1200.1 So onto my questions, is this optimum setup for my vehicle? (2001 honda accord) I've heard subs forward, port forward sounds louder to the listeners ear. Any truth behind this? Do I have enough port area? Should I be running subs up port forward? Or vice versa? Any input is greatly appreciated and thanks

Wrong section, sorry.

As title says, there's a few shops here but nothing I trust..... I want a box built and designed around my cars cabin gain... Not a box just built to specs

I'm going to build a box for a Fi Bl 15 that needs to fit against the angle of the seats in the cargo area of my 4runner. I want it to be ported and tuned to about 33-34 htz, but i'm having trouble finding out how to tune the box with the angled back on the box. I was wondering if anybody knows of any online programs or calculators that would tell me what size the port should be in the box to get it tuned right. Thanks for any help.

has anyone designed a box for a single cab silverado It will be for 2 10 chaos,trying for it to be at 33 hz If u have, tell me, Thanks

This is about the best fiberglass walkthrough I've found. My plan thus far is to cut out some holes in the door panels, make some MDF speaker rings, mount them to the door panels with little metal brackets, spread some fabric over it, and put a few layers of resiny fiberglass cloth over it. Sand and repeat, sand again. Am I missing anything?

I have a visonik 12" woofer, that came from this set: http://ep.yimg.com/ip/I/millionbuy_2051_58365261 I am looking for some dimensions for a box, I intend to build it my self. I am planning low tuned, and ported. it will be in my room for the time being, so i would say slot ported, to ~28-32hz. size isn't an issue. And, it certainly wouldn't hurt to recieve a few tips for a first time builder.

Its been long time since i been getting all my equipment and now im only a couple of weeks from it :bigclap:. now im scared to design my own box because of the big box that is going to be and i dont want to mess up. i have a silverado ext cab and im taking the back seat out, no one fits back there anyways . Ok my max dimensions are 26L,24w,26h those are counting the thickness of the wood oh and i almost forgot the subs are gonna be 2 18's DC lvl 4 with lvl5 coils. i was thinking of having the subs front and port front in the bottom tune to 32 or 33 hz if anyone has has time to build me a design il totally appreciated.

can anyone do box designs? it would be for 2 15" dc level 4xl's

Ok I am getting ready to build my wall and was wondering what size bandpass box and port would be required for 3 solox 12's running off of 3 crunch GP3000dpros? Its going in a smaller car so that is why I am using 12's. tuning would be for everyday listening.

Just wondering what you guys think the best programs for simulatiing frequency response, SPL, and similar things, especially for in car or in room calculations. I have WINisd now, alpha and beta, but they both yield problems on my computer for some reason and I can't seem to figure it out. The programs seem pretty easy to use, maybe I just haven't explored these enough. What do you use, does it cost anything, ease of use, knowledge required, different features....

I need help with a design for a ported wall with interchangeable ports that will house 2 15" Fi BL's. The Dimensions i have to work with are 52"H x 17.5"D x 28.25"H, the frequencies would like be 32 and 45. If any one can help me out it would be much appreciated.

im gonna make some kick pods using my old kickpanels in my truck, but i saw a guy on here once making them with 1/4 inch mdf for the mounting plate, and then the rest was foam filler which he resined and glassed directly on top of that then wrapped them in vinyl. is this a good idea, or stick to the regular all glassed way?

Hi there wonder what's yr opinion about such setup: 2 x 8" by AudioPulse (Epic D2) questions: 1. go sealed or ported? 2. how big should be the box to achieve lower frequency response (~32hz)? 3. will this setup be enough efficient to shake my car or it's better to go with 2x10" ? thx