SPL & SQ / Fabrication

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.

alright so I will start building a sub box pretty soon but I have an issue, there is a metal brace on the floor of my car going from one side to the other. can I work around it? or does the box have to be flat one all sides?

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.

if ny one has ann ideas for a box design that would be helpful please post them!!!! i need a good idea for the SPL competition!!!!

I have a 98 S10 single cab truck. just bought 2 10" sony xplods. model xs-gtx100lw. along with a sony xplod 800w amp to push them. I, however, can not find how much cubic feet the speakers need. and I would greatly appreciate it if someone could help me out with getting the best and most sound possible out of these speakers. I am going tomorrow to get the wood to start building a box. I am 6 ft tall so room is kind of an issue with scooting the seat up.

hello all i have a system installed thanks to the great guys at phoenix gold and its really fricking loud which attracts the hoodrats and hence, i have no window now. So i went to go get a new window and the thing is almost 700.00. so i looked at lexan and that is way frigging cheaper. so heres the deal. How in the hell do you install this crap. i know i am supposed to be able to cut it with a jigsaw and like sand it or something but i dont really know how or what techniques to use or anything else. i need to know how to put this in or someone that does it needs to do it for me but either way i need the big fatty lexan in there. Since there is literally nothing on this su…

Steve got me interested in the idea of building a console that I could put a decent SQ sub in. My thoughts were to have something like this, Box will be fabric matched and coushioned <SP bolt to surrent center seat/console location, have brackets that fit stock storage box on it. Each end of the box will extend behind each seat for added volume, passenger side extention will be the port. OR Plastic or vinal covered glassing to look similar to the current console on the LS & LT extended cab with basically the same layout. OR But an existing color matched console and modify it to incorporate the box design. Ideas and suggestions definatly welcome. I will make a b…

About to build a box for 2 15"s FI BTL's that will be going into a 87 Mustang. Each btl needs 3-5 ft^3 and is .21 displacement. This is my first Wall / Semi wall build so i just wanted you guys to look over it and tell me what you think.

I'm not very good with box designs but what do you, and by you I mean people that know about this stuff, think of running 1 SSA DCON in at roughly 2.5- 3ft^3 box with a passive radiator??? I like the idea and it would solve a few issues for me, but Im not shure how it would sound. I know thats a pretty big box for a DCON so what would the consequenses be?? This would be in a foward firing box in an 02 ext cab GMC sierra running at about 400watts. I know nothing about passive radiators except that there supposed to act kinda like ports, I think, so any help with tunning or suggesting a specific radiator would be appriciated.

So I used to run my Fi SSD 18 in a 9cuft box tuned to 32hz (or close, it was my first box build and I had some hard times with it). I liked how it sounded, though it was on the high end as far as box recommendations go for an SSD 18. The thing with the box was that it suffered slight water damage and aesthetically wasn't as pleasing as I preferred. I was looking to either paint it or put some sort of vinyl or something over it to improve its looks, but never got around to it. Another thing that was annoying about the box was how LARGE it was lol. It was initially designed for my room, but was moved out to my Jeep Cherokee. I wanted to keep the back seats up, so the only w…

I have an 04 Avalanche that I want to build a box as a center console since it's the only place for a reasonably sized box. I have overall dimensions of 13"wide by 24" long and 16" high with 3/4MDF. I haven't worked with ported boxes so I'm a little unfamiliar designing them. My plan is to have the sub rear facing and at the top of the box, with a slot port on the bottom facing back. I will be driving the Fi BTL 12 with a Kicker KX800.2 which is tested at 1038w. I enjoy mostly rap\hiphop style music, but want good all around sound. So my questions are: How do the box and port dimensions look? Is there a different port style that would work better? Does the port placement…

Hey everyone. I've got a 99 dodge 1500 regular cab. I built a box to go behind the seats that was about 2.4 cubes and had a 3" aero port, loaded with a Fi Bl 12. I resently bought a DP 12 and it is quite a bit louder than my Fi, but I know it can get louder. I'm building a complete fiberglass box to replace this one, and it will have the same basic layout, but I'm putting in a bigger port. I've got a 4" and a 6" aero port. So my question is, which would be a better combo: DP with 4" aero port, or DP with 6" aero port? I can possibly fit either one, but I want to know which one would be better for me. My music style is rap just because of the bass, and I LOVE the lows, and…

I have a 4 cubic foot box that i would like to install two 4" pvc ports in... How do i go about figuring it out?

Alright, I know how all you guys are happy to help people with set-ups and stuff. So I got one for ya. MY brother was paralyzed sometime around birth. So he is confined to a wheel-chair. He rides around in a big-honkin van. He loves car audio and has always been interested in what other people have. Anyway his birthday is coming up soon and I was wondering if you guys could just put your heads together and help me figure out how and where to put a system in his van. I will have pictures soon. Later Today. It's a '91 Chevy Van with the back seat cut out so he can drive his wheel-chair into it. Anyway I have to go put a water pump in. Thanks in advance for all your help and…

Can someone help me out with some dimensions for a sealed box for 2 Icon 12's? Need 1.25 cu ft. per speaker. Going in an Escalade. Have 46.5" width avail. Currently in a badass ported box I built. Want to try out the sealed enclosure for SQ. Attached a pic of my current box.

I've never built a box before so here go. Starting the build tomorrow, are there any changes I need to make?

This post is going to be a little bit technical, but since most of you are more "technical" than I am, I'm sure you can handle it. I need help setting up my amps, and more specifically setting my amps' crossover frequency cutoffs. I understand if nobody wants to take the time to reply, but I'll just throw all of it out there. First, my setup. Some of you have probably seen my installation log (and my sig), but I'll lay it out more specifically here. I will be installing my amps very soon, and need to set all of the dials before I screw them into the amp rack. Amps JL Audio 500/5 (for front speakers and sub) JL Audio e2150 (to drive my rear fill only) Speakers Fronts:…

I am building a full system for a friend in her trailblazer and need a little guidance to make sure I'm on the right path. She listens to 90% country music and about 10% classic rock. She likes loud but nothing over the top. I pretty well have the front stage sorted. Deleting rear speakers. Have a pretty head unit picked out lol. Front stage amp is done. Which leaves me with the sub and enclosure. Previous set up she had was a single 10" kicker comp in a sealed enclosure on 300 watts in a trunk. What she did not like about it was the output was a little weak and it lacked the tight impact she was looking for. Her requirements are small footprint and $150 or less. I c…

Hope everyone had a happy and safe holiday. Alright, I want to upgrade my front stage and would like some help with speaker placement, setup, installations and whatever else you guys suggest. Check my signature for the setup I currently have. I have a lot of time before I get everything and install because I'm in Afghanistan right now. So basically I want to improve on my overall sq because my speakers are lacking in the midbass area and want to change my setup and I guess try to go active and really experience a real sq system. I'm not trying to go all out in the sq area but I want to do a 3way setup and just upgrade my setup. Any help would be greatly appreciated. Than…

I am doing a 4th order in my GF's 1998 Mustang GT convertible. The box will be where the back seat should be since the trunk is sealed off. She has 2 db Drive K9 12"s and a db Drive A7 1,500. I want to do a 4th order bandpass with a woofers behind either seat facing into the ported wide which wiill port into thr middle. = I am thinking 1 cube each sealed with 2 each in the ported side. So 2 sealed 4 ported with 80-100^2 port tuned to 48Hz. Any thoughts?

Hi, I am getting ready to switch my system from my firebird to my truck, so I can sell the car.. It's going in a 99 s10 ext. cab xtreme.. I have 1 12" pioneer premier 3002d4, It's in a sealed box now, but I want to build a ported one for it. I will be using a precision power 1500 amp at 2 ohms, so roughly 1000 watts to it. I know how to do the wood work, but I am not near as good with calculations.lol. A good slot port box design wood help a lot, if anyone has the time. I would like it to be tuned to 34hz, with 1.7 cu without the sub. For room in the back of the truck I have 14 1/2"x18 1/2"x50".. I know thats more than enough, but thats the total space I have. Also, wh…

Hi, I am getting ready to switch my system from my firebird to my truck, so I can sell the car.. It's going in a 99 s10 ext. cab xtreme.. I have 1 12" pioneer premier 3002d4, It's in a sealed box now, but I want to build a ported one for it. I will be using a precision power 1500 amp at 2 ohms, so roughly 1000 watts to it. I know how to do the wood work, but I am not near as good with calculations.lol. A good slot port box design wood help a lot, if anyone has the time. I would like it to be tuned to 34hz, with 1.7 cu without the sub. For room in the back of the truck I have 14 1/2"x18 1/2"x50".. I know thats more than enough, but thats the total space I have. Also, wh…

I remember playing around with making boxes and stuff and had some different software. I had somebody guide me through it before, I had a box deign for my other truck. But with it, I have to make some decent modifications to it to put a box in it. With my Jeep I can just design a box, go pick up the stuff, make it and drop it in. I think now that I can do that, I will actually pay more attention to how to do a box, have more interest in it. I was recommended subs up port up on the drivers side, not sure if it will fit or not. The max exterior size the box can be is 41.5"w, 16.5"d,21"t... I'd like to design a box myself but obliviously get some help with it. I think if I …

I got some new midbass speakers and ready to mount them in the door. Problem is, there is very little depth due to the window frame directly behind the speaker mount. I had planned on making some door pods, since my panel is really flat with the pocket removed. Here is what I have to work with. Buddy told me- Hey! You have a large opening in the middle of the door. You can make a baffle, bolt it to the door, and be done! Yeah, that would be pretty easy but I think soundstage would be terrible. Here is a pic relative to postion. Am I wrong? I tried hooking up the driver and moving it around. Kinda hard to tell holding it with one hand and moving it around the door a…

Hi everyone, first time poster on this forum. Posting all the way from Australia. Okay, So I'm in the planning stage for a system in the new car, and I've just started doing up some rough design/placement ideas on Inventor, when I ran in to a problem. I'm designing this for a Fi Q12 ported, and I know the recommended enclosure sizes given by Fi of 1.8-2.5 cf @ 28-33Hz. However, that is quite a large margin of variation for a recommended enclosure volume (0.7 cf and 5Hz tuning frequency can affect the sound a fair bit). As I'm not a massive fan of guessing/speculating about the best enclosure volume, I decided to pull out the calculator and the old loudspeaker design c…