SPL & SQ / Fabrication

ok, i done a trunk build but ports not tuned right and i want to get lower and louder so im going to be removing the rear seat in my 95 fleetwood and thats where the box shall go. i want to keep it at window line so these are my max measurements to work with height 23" depth 26" width 56" height really needs to be 22"-23" but the width and depth can be smaller if need be, with those specs its around 16.5 cubes before subs and port, i want to be tuned around 32-33hz for rap music whats the best size box for this application, please help, any help is mucho appreciated

If you're building a downfire enclosure, how do you calculate the distance from the floor? I've searched and haven't found a definitive answer. All i've found is calculations for woofer sag and "just do 3"-4" from the floor." Half the radius, or plus 5% of Xmax... What? Help please! Thank you.

alright ive came to the conclusion that with school and measly allowance i dont have the time or money to get into the really competitive comps, but i remeber hearing that some compitions have std size truck divisions if thats true how is that division broken up? if there is such a division im going to try and be running 2 SS rl-i8 around 800 watts rms (if youve seen my newb sign in you know why i have to try). do comps break down divisions by power number of speakers size of speakers....thanks sorry according to my eng4 teacher i have horrible paragraph structure and sentence flowing skills

I'm thinking about doing something that I've only see Steve Meade do, on a much larger scale. I want to build a small setup to just listen to music in the garage with. I have a cheap set of Pyle component speakers that I can use.. I'd like to build a ported enclosure like this. They would be ran off of a really old 100 watt 2 channel Pyramid amplifier. I do not plan on adding a subwoofer to the setup, just this set of components. Since this old amp doesn't have any sort of SSF, HPF, or LPF, it's playing a full range. I will have a crossover for the tweeter, but the woofer will be seeing even subsonic frequencies. I'm thinking about using 1" PVC for a port tuned around 40h…

i have a 93 nissan sentra and i purchased a bl18 how should i build the box to fit into the trunck withough compromising sound quality

im building a box for a Pioneer TS-W1207D4: 1.65 cu ft 3"x5.5'' port displacement: 0.076 the box ive built is about 1.9ft^3 without any displacements. i'm assuming the 3"x5.5" is the port area and i just need to calculate the length? if so, how long do i need the port for ~35-38hz?

First post, Please bare with me. I did a search but didn't find what I was looking for. 2005 Ram 1500 Quad Cab My truck is all set-up with highs, deck, EQ, Kicker ZX.1000 amp (~1150W @ 2ohms). Looking to run a 12" BL Dual 1Ohm. I listen to mostly rap and hard rock, looking for a good box for the daily driver, I'd say mostly rap, real deep lows but I'd still like to hear the kick drums. I've never built a custom box before; I'm looking at 2.0 ft3 slot ported box @ 32hz. Will this limit the sub from reaching its full potential? The amp puts out real good clean power, I'd like the best possible box for my truck. Are there any pre-built boxes that will work well with …

I'm looking for someone whos got a TL anywhere in wisconsin or near illinois border.

Ok i'll prolly do this some time this week or next week. But basicly to put that port in the deck like you guys where saying i would just have to find the total Cu. ft of the whole box. And plug my information into this handy dandy online calculator. http://www.carstereo.com/help/Articles.cfm?id=31 and i should be fine right? not tuning this thing is gonna be hard as hell.lol I already know the length is gonna be like 40in long. but i can make it smaller if need be. And i'm gonna guess and say about 17cu ft. only thing is since its a daily driver and i want to use it for comps, how can i tune it? I mean 45 sounds like a good start, but for daily i dont want it that high, …

alright guys.. what are some good ways to carpet ur boxes.. like techniques.. or whatever.. what matterials do i need to use besides carpet haha ..

im would like to know if port are is THAT important. freind of mine has a BL 12, he wants to buy a box that another friend built, but the port area is under 12 sq inches per cube. the sub that was in the box before sounded pretty good. just wondering if the port are being a lil small is restricting output or SQ in any noticeable way. its off by like 8 sq inches. thanks

im planning on building a spl box for my 12" BL and would like some input from people with experience on a basic design to work around. for an spl box, i know people sometimes use a smaller box with more port area. my daily box is at 1.8ft^3 tuned to 33 with 26.5in of port area. approx how much port area would be ideal for this sub in say, a 1.5 cu ft box? im powering it with a hifonics bx1606d @ 1ohm and its in a 97 4runner, so anyone have ideas on tuning freq also?

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I have 2 sd1v2 10" running on a 1000d. I like the sd1v2s and all but want a little more. Anyone experienced Kicker CVTs. If so will they hit harder than these sundowns? The sd1v2s are sq's, are the CVT's straight SPLs?

Im gonna be getting my 15" custom juggernaut back from PSI soon and i was gonna build a reg ported box 4.5 cu 35 hz first, but i am kinda dabbling with the idea of a 4th order. ive tried looking up some info but so far i just have spent alot of time and still dont know that much about them. any opinions, advice or tips is appreciated. im mostly looking to figure out what the method is on figuring out how many cubes you need inside the sealed area, and how much you need in the ported area and what you port it to, and why you port it at that hz. im planning on building multiple boxes for this sub to figure out what i like best

This is going in an RX8. Looking for a fairly good ground pounder with the ability to upgrade to 4 SA8's in the near future. Not sure This design has enough port area. Don't do too many ported boxes and would like to make sure before I waste the time building. Will be powered by a Sundown 2000D. Link to pic of enclosure I had worked up.:

My guages in my car are digital LCD. They are a teal color now and I'd like to change them to green. Can this be accomplished?

heres my box measurements 5.339 cubic feet i want to use areo ports to tune this box to 30 Hz I want to use maybe 2 - 4 inch areos or what ever you guys think would be the best to use please include the measurement of the flares too please break down the measurements to the areos ill get them for parts express. thanks guys, Bill. ps I need to know asap cause i have the box built its ready to go.

When drilling into the mdf boards, it seems to split every time when i am screwing in i think there deck screws... Can anyone help me out and tell me what kind of screws to get for this project! Thanks, Curt

ok so i really dont trust most of the box calcs. online so i've been researching formulas and anything i need to know about designing on my own. so anyone with advice please put in your two cents..... tell me if i got this much figured out: 1). to come up with the ft^3 of the box you multiply length x width x height using the inner dimensions. then take the total of that and divide by 1728 which is the in^3 of 1 cubic ft. 2). then to factor in port, bracing, and driver displacement you use the L x W x H on each item and subtract it from the ft^3 3). for box's with a slanted front. for example the top is 5" and the bottom is 15" you find the average of them by adding them…

Hi, I've read everywhere I could, but I get very different informations!!! My enclosure is about 4 ft3 and has a round 5.6"(diameter) PVC port; port length is 14". It sounds good, but I 've read that port area should be much bigger : 4 (ft3) * 15 = 60 sq inches. And my port is far from that. I don't really know the actual tuning, but I would like it to be around 30-32 hz. Do I have enough port area ? Or enough length? Enough port ? Please, help me !!!

OK i need to run through and make a check with yall to see if my demisions are rgith for this box and its ports ok the box has 4.6 cuft and it will have 2 re sx 12's each displaces .16 cuft and a port that displaces .24 cuft so total displacement = .56cuft which gives the box roughly 4 cuft so i have the port 15w2H14L = 33hz does this sound ok

I want to build a box for my 2 12's. I want it to be ported but I'm having a really hard time finding a diagram or blue print. The recommended enclosure according to the website is .5 to 1 cu ft. Kinda confused as to what that means.

im going to have two FI BL 15s and i want a good enclosure. my max dimensions are 50 inches in width, 28 inches in height, and 25 inches in depth, and i kinda wanted a design plan such as the port dimensions and should i go double or single baffle?

Does anyone in the eastern North Carolina area make kickpods or know someone who does? I'm not terribly skilled with fiberglass.