SPL & SQ / Fabrication

Okay, so I have a quick question. I am planning on getting 2 Sundown SA-15's. I already have an enclosure built by the local shop, but I believe it's for an SUV. It fits in my trunk, so I was considering just rollin' with it. Only problem is, it's subs up, port back. It's 3.1ft^3 per sub, which seems fine.. but I could also have someone build me a custom enclosure that would be more of a traditional trunk style enclosure. I'm trying to save as much money as possible. What should I do? What would sound better? Thanks.

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.

I need help. I traded my 2 vvx-15 for a sundown v2 18 inch in a box that needs help. I want I box thats tuned between 30-34 htz. I want it vented not ported, I like the look better. I like how loud it gets but I would like to control it a little better when I turn it up, but I think its the box that leaks. I have a jeep grand cherokee, so I know I have the space for a large box. At the moment the the sub faces up I would like it if it fired to the back. Any help is greatly appreciated. And I am still running the planet audio bb2400.1

Just got my new BTL 18 with all the goodies i wanted. now for the box. I plan on building it, but it will be the first one i build. Naturally i have a few questions that i would appreciate anyone taking the time to answer. I got alot of box building info from http://spkrbox1.spaces.live.com/ it seems to be legitimate information, i'm pretty sure i got the link from this site. but should the height of a box really be 1.4X the weight??? with my calculations, to get a box of 8.6 cubes BEFORE port and sub displacement, my box has the be 34 inches tall!!! (25X34X17.5) Ports brings me to my next question... are there are any performance differences in the type of port yo…

Alright so I'm making a box for 2 kenwood 12s. I'm thinking 1.5 for each sub. Idk wether to do a single chamber for both or separate chambers?.. I'm leaning more towards one chamber and one port. I want it tuned to 32 hz. This box is going into a trunk so size isn't a big issue. If anyone could make me a nice design I'd be very greatfull. Thank you.

looking to make a sealed enclosure for a 10" Infinity Kappa Perfect DVQ. the sub will be getting 400rms, just trying to get some confirmation on the dimensions of the box i should make based on my reading I should be looking for a box with about .8 cubic feet and using the mid-size insert. this look correct to everyone?

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...

Im about to be doing an enclosure for 2 12" Memphis m5 subwoofers. . And I cant find enclosure recommendations for them.... been looking on google for a while and cant find a straight answer.. anyone know around how big I should make this? I'm going to be trying to get them behind the 3rd row in an escalade. . Dude has not brought it by yet so not sure if ill be able to fit them yet........., ported by the way

I have a 1989 Dodge B250 Van. I removed the backseats and built a platform to hold a setup I am getting ready to build. I will not be building a wall. The subs were going to be facing the back of the van and my plan was to have the port on the back of the box. Do you think that would work properly or should I move it to the front. The speaker box will more than likely 21-24cubes and tuned around 32hz. It is supposed to be for 4 18's or 6 15's. I am leaning towards the 15's.

I am looking for someone to build me a box for my SSA Xcon 10. Looking for something that will hit on all types of music. The sub will be in a Trailblazer with a cadence A7hc at 1 ohm so around 1200 watts. I would like to keep the size down as much as possible. Ported preferred. If anyone wants to build for me pm me and we can work out a deal. Thanks

I am looking for someone who can design an enclosure for my trunk, max dimms are: H=14", W=38", D=38", Tuned to 30hz, Will be using 7000wrms+. Thanks.

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…

Looking to get a decent prefab until I have time to build a box. Anyone have any reccomendations?

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

Ok i have been competing in an 02 ford explorer (third gen) with two 12'' nightshades, 2 1500s, and a big ol battery box in the back.. sub up expernal aero ports back, i am looking at ways to make the vehicle louder not get more power as i am reaching my limitation running in MECA s2, anyone with any suggestions i am at a loss for ideas, also it has the third row seat which make the vehicle about a foot longer than the one without in 3rd gen models..

Cuz im going to compete i could use some test tones, if anyone has them, please email me or send me them on MSN toom585[at]hotmail.com

Alright I am trying to figure out a design for my car. Box is for 2 15" Nightshades, with tons of power, Jacob said I only need 2.5 cubes per sub. Anyways my dimensions are 30" deep, 16" tall and 31" wide. Only way really to fit this is if I do subs up. Now I wanted to do external aero ports blowing right into the car, but that won't fit. So now I am thinking A. aero ports blowing in but internal, b. aero ports blowing to the side, but internal, c. regular port facing in, d. regular port to the side, e. regular port to the rear.

I am the fortunate owner of a 4th generation camaro :-p Anyways I have a dcon 10 on the way with plans to add a second. Ive seen the box plans for optimal ported and they look fine but because my box is going to be 3 sections with a wedge on top I dont even want to try to do a slot port. If anyone could just give me the size of the box and port ( to achieve the same result as the optimal ported enclosure ) with the port volume already included I would be very thankful

I decided to temporarily put in one of my SE12's in at 2ohms on my T3002 in mono mode. Giving it approx. 800 watts. The box is 2 cubes after all displacement. For the port I doulble up a pc of 3/4" MDF and glued a pc of 4" pvc pipe through 1 layer and router a 1/2" radius on the top layer to make a homemade aeroport. The length overall of this port is 13". I don't believe I am right in thinking the tuning is at 32. Can someone double check me on this. Also am thinking about shortening the lenght of the port to get about a 35 hz tuning. This is just a temporary daily box for me to have something till it warms up. But I listen to all kinds of music so I needed some beat in …

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?

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!

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?

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.

im building a rectangular box. i was gonna ported cuz i was gonna get a 10" fi ssd. originally i was gonna make a L shaped ported box but was told 2 get aero ports insted. the box that i wanna build is 3/4" mdf and is 30" long, 9" deep, and 12" high and has 1.30 cu. ft. of air. The ssd needs to be .90-1.80 cu. ft ported to 33hz. wat should i do? can sum one make a diagram or sumthing? thanks.