SPL & SQ / Fabrication

Like the title says, im building a new speakerbag. The fun of causing mischief at the mall and walmart n stuff has disappeared, I want this one for something easily movable, for bragging rights, but mostly as my room system. The backpack aspect makes it more fun =) I am purchasing 12 bazooka OEM 5" subwoofer/midbass drivers, and three 20wrms x2ch Class T amps. I have my two previous batteries (12v Motorcyle battery, 12.5v modem battery) to power the amps, they run on 12v. I have four 5.25" mid/highs speakers already, and will add foam baffles to finish those off If i can work them in. I'm thinking (8) 5's isobaric, sealed, w/ polyfill, in .5cuft. I'm not really looking f…

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

Has anyone tried this when they were bored or may just know what happens if you take a ported box and install 2 ports in the box, one tuned to let's say 30 hz and the other at 45 hz. I'm just curious as to what happens. Does the box react as if there is a major air leak? Do the port's tuning medium come into play and output a tuned frequency of 38hz for this example?

...that is all. -Nick

hey guys i'm going to try a different stlye port than my slot port that ive always done and i'm wondering if anyone knows where to find some aero ports and whitch would sound better 2 6" ports or 3 4" ? its going to be for my 12" btl d2 daily. on my saz2000d amp box will be 2.5ft3 i'm looking for a low bass my current box is 32-33hz but my port area is too big and the sub tends to bottom out at high volume. and does anyone have any views if it would make a bigger difference going to a 30hz tuning ?

hi everyone, I'm posting yet another topic to see if I can get any more excellent advice. In a previous post I stated that I was gonna build my own box. I know I want a sealed box. My goal is a real flat response. In my literature for my subs (Phoenix Gold titanium elite) they list 2 different recommendations for sealed boxes they are as follows: {Musical: Vb 1.6, F3 33 Hz} {SPL: Vb 1.0, F3 36Hz} My question to you guys is, Since I have 2 subs, What would be the outcome of making 1 box to musical specs and the other to the SPL spec. The speaker placement will be under the rear deck lid with subs facing the rear of the car. Car being my Chrysler 300. The box will be made…

Hi all, I have 2 boxes that ive built and i am in the process of testing. ->build log here<- they both have the same interior volume and tuning and all that good stuff. so the internal volume is about 2.45 cuft with a tuning of ~34 hz with about 40 sq inches of port each. now i had a box that was 2.5 cu ft tuned to 34 hz with 39 sq inches of port and didnt get much overexcursion. so heres my problem. on low notes like 28-34 hz the sub barely moves and creates ALOT of sound, im very shocked by this. but when you get to like 36-40 hz the sub reaches its limits of excursion and anything above 40 its just bottom out city! im very scared about this because in the o…

Hi i'm starting a build, and I'm not sure if I'm going to need to upgrade my electrical system in my truck at all. I was hoping someone could tell me whether or not I should do so or not. I'm going to be installing an FI Q12" running probably an Audio Pipe 1500 in a box tuned to around 32~34 Hz. Installed in the back seat of a 1994 Ford Ranger with bone stock everything. Except a Clarion FZ409 Head unit. Which i'm still adjusting to. lol. Any help would be greatly appreciated!! Thanks!

So Lowes is having a sale in my area and i noticed that 3/4 MDF 4x8 sheets are on sale for 32$ I was wondering, how many 4x8 sheets would i need to make a 4.0cf ported box After displacements. Any help is appreciated. Oh and theyre having a sale on 1/0 for 1.93$ a ft

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…

im making a box for 2 12 Fi BL 12's and was wondering do i need a baffle for the 12's? becuse if i baffled it would mess with the volume and tuning of the box? sooo? not sure. the port is located inbetween the 12's. anyones 2cents?

My friend just got his first non kicker sub and he got a fi bl 15 he is putting it in the back of his Chevy extended cab he can make it about 15-18 inches deep 17 inches high and can be up to around 50 inches long he wants his box about 5 cubic feet and 32 htz can anyone help with a design

So I don't have a lot of tools and I don't feel like ordering flush mdf rings so is there something else that I can glue to the base of my ring cut out to give it that same look when I fiberglass them...I do not have a router and I'm not going to buy one just to make 4 flush mdf rings...so Im just wondering is there anything esle out there.

So im making a thread that may help people in the future on different enclosures for different applications. So what are the physical differences in an spl enclosure compared to a daily driver enclosure or sq enclosure? What separates the two into different catagories? for example does a box that is bigger and tuned high make it a spl enclosure or vise versa? Thanks in advance for your expertize.

Im looking to make a box for 2 12inch kicker l7s. I want the subs to have individual chambers and to face up. I want to use aero ports and have the ports facing back. I want to use 3/4 inch birtch plywood. I am having trouble to come up with a design. I want to tune it to 32hz. I am looking for help with this design and I am looking for opinions on what I want for this box. I want it to be loud with little distortion. the width of the over all box cannot exceed 40inchs and the depth of the box cannot exceed 24inchs.

I started a wall and need to know what to tune the box to... Any help would be greatly appreciated.

first thing sorry guys ive tried posting this in the fi section didnt notice it was in the wrong place but im trying to find out the cubic feet on this box and its tunning cause i made it but in order for it to fit i had to chop it down 2 inches if anyone has any ideas or any help it would be great and its for a fi bl 15 and again sorry for the double post

i was looking up designs for front facing subwoofers/front facing ports.there was 2 designs that got me thinking......i see more people use the L-bend port on a suwoofer box .....like this and less people use a design like this im not a big box builder.....so can somebody tell me why most people use the L-bend instead of the dual chamber middle port design........is it because u get both subs working together in same chamber? and how would it change the air flow from side port to middle?

Sup guys I have a few questions, I've seen so many different types of enclouser's for example Round ports Slot ports squared ports port for each side individual chamber Ok for my subs I have 2 12" dvc subs punch my max dimm. are 34 wide x 15.5 height x 17 depth all pieces are cut out already I want to know how ??? should I make my port round, slot ported, port in between the middle. tuned around 32 to 35 hz so that's about it so can someone please lay a hand on me all info would be great thanks to all....

I have a 99 Siverado 3 door. What I want to do is take back seat out and build a box for subs so they will be behind driver seat stacked on top of each other. Take back seat and get cut so I will still have a half seat back there. No one in my area wants to deal with it. Is this a good idea? I just want my trunk to be able to carry 3 people instead of just 2. Would a ported box still be okay on one side of truck?

Got a quick question. What does multiple runs of power cable front to back do? Does it increase voltage or help handle the amount of power being pulled from your rear battery back? I ask because I’ve had the fuse holder near the front battery melt a while back. Everything has been good for the past few months. And this just happened. So I cut off the melted part of the wire and put a new fuse holder in. And recently it’s done it again. Ive read that maybe the wire can’t handle the heat or whatever so it starts to melt. Will multiple runs of 1/0 awg help with this problem or would it be wise to just run a 2/0. My my system consists of a second battl…

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

picked up a pair of 12" iCons and this is the box I plan to build. I was wondering what you guys think. This is the first time I have run anything other than a single 15" or a single 18" so I want ot get opinions before I build it. 4.8ft^3 net air space (5.12ft^3 gross .16ft^3 displacement per sub) tuning 32hz-33hz 72.5in^2 port area

So after seeing the new box I built for my future DCON's (ordered over two weeks ago) a freind of mine has recruited me to build him a box for a single old school (2001) Kicker c12vr. He wants a SQ build and could care less about output. The only problem I am seeing is that I can'ft find any specs on the sub. The manual I found for it is a little light on the T/S parameters so winISD isn't too helpful. So my question is, If I run a standard 2cuft box tuned to 32hz(seems to be a standard), would that have a somewhat flat responce curve(ignoring cabin gain and all that)? It seems to be a tried and proven tuning so If I strive for that, and being that he is new into car aud…