Fi Technical

i know first thing everyone will say is why sealed, ive just been a sealed type of guy all my life, nothing against ported..but its not my taste..so i know on fi's site for 18's they suggest 4-8cu ft per sub..im having a shop make my box for me so its not like i can experiment with different sizes..so for a sealed application and for a mix of rap and rock what do you guys suggest in a box size for each 18? space isnt a issue its going in the back of a denali

hey whats up guys just got my box built from this guy that has built them for me before and never had a problem but this one just looks not right so i need help from you guys....the deminsions are....width is 48" height is 22" depth is 31.50 port hole is 3.75 x 22 port length is 27.75 and it is supposed to be tuned at 32hrtz...does this sound right or do i need to have him redo it thanks if i forgot something let me know thanks again

its right at about 4 cu.ft if I can add some volume when I actually start fitting I am shooting for 4.2 cu.ft.. Not including the port and speaker displacement. Port 4 3/8" x 11 1/4" x 23" long @ ~32hz The fron is angled so it will fit to the seat area and I can seal the cabin from the trunk. I am going to make a custom seat that has a large rectangle hole cut off out of the center and have it foamed and upholstered to match the lower part of the seat. Thanks foir looking

Just recieved my FiQ12" need some help on box ideas measurments.. etc.. I drive an 06 Nissan Xterrra. I would like to build a box the slants at an angle "towards" you following the countour of the back seats to.. (larger on the bottom , to smaller on top with the front being straight , facing the back) if that makes sense...Ill post a measurement of the height of the back seat at the angle but if any one is an SUV owner out there you know what i mean... i hope...that makes sense... I am assuming an angle on the back of the box doesnt make a difference.. its the amount of air inside.. I also need some recomendations on terminals for the box.... I am open to alternate id…

what kind of grills are needed for the fi q 15 ? something strong to protect the sub. i have a suv and 2 kids, i don't want to worry about things getting thrown in back. most of the grills i have found don't have enough clearance for the full throw of the cone. looks are not an issue. if i can't find something soon i'm going to start welding my own.

hey guys, i bought an fi btl 18" sub yesterday its my first big sub and im still learning so take it easy on me anyway, the guy i bought it from gave me the box with it as well (looks to be about 6 cubes) and there was a piece of mdf covering half of the port he mentioned something about it being there to build more pressure and im not sure what effect this would have anyway, in my opinion all it could possibly do is fuck the sub up somehow by making it move in a wa its not meant to in that box can i get any opinions on it? let me know why it could be good or bad -Stephen

If anyone has tried this could you tell me what you think of it? I'm trying to build a wall that is all funky shaped. Trying to smash 4 18's into a Ford Explorer. found this program but would just like to know if anyone else has used and what you think of it. The bottom is 37" deep x 52" wide then go to 33" deep x 18.5 " high. Top is 33" deep x 52" wide 18.5" high Grand total of 37" tall x 52" wide and the depth. Trying to utilize every bit of room I can so I can still have room for batteries and amps. Plus the ports gotta go in there to. Any help on any other programs or any ideas would be appreciated. Got it drawn out on paper. Kinda to scale it down to where it will …

The box I'm building is for a single Fully loaded BTL 15. The design i came up with has the following specs: 4.5 cubes after displacement and bracing, tuned at 32hz with 64sq/in of port. My goal is just a loud ass daily ground pounder. My question is just does this box seem too big/small, and is 64sq/in too much port? thanks

Im in the process of having a box built for my tahoe for a 18" BTL. my boxes dont always come out the way i want so i decided to have this one made by someone who knows what they are doin.. well me being the kind of person i am.. ill bring the info i have from him to you guys and hope to get some support or get me in the right direction. Guy is fully aware of the BTL's and has made several boxes for them in the past. He says he would like to make it 8.5 cubes tuned to 30-35hz and says he will give it a little bit more port area than Fi recommends... does this sound ok to you guys? anyone have something similar or done anything similar. I know here in the fi forums its say…

Hey Scott, been a while... once again need your services for some recones, starting off with a standard recone for an RE XXX 15" (old style '05) with 2 spiders and DVC 1.4 coil I have a few more parts I need, a bit of a list, let me know if u prefer an email about it ill check back here later

Ugh i just bought a box form a audio store and its a 1.75 cuft and and im sure if i want to use it. Would it be ok to use it tell i find out how to build my own box?

I am very curious on this one. About how tall would a box have to be to fit a 18" BTL forward facing in it. I am curious cause I wonder if I can get it in the bed of my truck or not. I don't think I can, but am curious none-the-less. Thanks

Hello there! So a couple months ago I reconed my 12'' fully loaded (older-model) BTL. Before, it lived in one of Pete's Team Toxic Enclosures...but due to the possibility that it may have blown because of the complexity of the enclosure...I want to design a more simple one with the same dimensions of the previous. Problem is, I do not know how to design one. The dimensions would be 20 by 30 by 14. I would like it to be tuned at 32 hz. If someone could please point me towards a thread with the same specs, or design one for me. I would be very greatful. The sooner I could have this figured out, the sooner I can build the box and install the subwoofer. Thank you. P.S. : …

hello everyone. i just got metered today and had a 139db at 48 hertz with my single 12 btl. Just wondering if thats in the ball park of other people.it was on regular music i think the song was jeezy-put on

Hi all, I'm new to the forum but been in audio for some time. I posted earlier about making the change to Fi and Sundown. Great product! This is the old system, it is 2 Gain Industries GP18DVC2 subs running off an old school Lanzar Opti 50C, stock electrical. The best part: This box will work perfectly with 2 BL 18's, space, port and all. <object width="425" height="344"><param name="movie" value=" name="allowFullScreen" value="true"></param><embed src=" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>

Im going to get 2 12" SSD's if i want to wire them to a 1 ohm load should i get the dual 1 or dual 2 ohm. subs.

:bigclap: hi I am new here and I wanto to know How I cant buy a FI speaker. I need to aknow a telephone number thanks my email is [email protected]

i have 2 jl w7's 12inch, that are both froze, is it possible to recone them with FI recone kit? i was kinda new to this recone stuff sorry, if you can help me i would appreciate it, i would actually rather ship it to FI but i cant ever get ahold of anyone. thanks

Hey guys , i want to build an sq box for my FI BL 10 ! I hope you can help me with the port an the size of the box ! Thanks for helping me ! Nice regards

ok guys i wanna put in my car 2 12" fi q d2 and i dont know how many cubic feet my box needs! i wanna hit lows soo i want it at 32hertz of tuning. i know that one fi q 12" need 2.35 cubic feet after sub displasement for 32hertz i have a 99 maxima and my maximum mesure is 36" width 14.5" height 26" dept i wanna use 3/4 mdf anyway i really need your help and thanks alot! and what type of glue ad nails should i use ... anyway really enjoyed your help

hey so I bought Bl 18in dual 1ohm. Im using the Re calculator for a L port, but im seeing there are many variable s that i have to account for so if you guys can help me understand what to do. Its going to be tuned at 32 hertz So how much port area should i have? My demnsions are 37W by 20H by 15 D. How much box voulme should i have? And where should i mount the subwoofer can i have it on the same side as where the vent will be? how far from the vent should it be? This is the first time i have ever done somthing like this so i dont know all the terms and what they mean so if you could plz explain it. thx!

currently i have a 12" BL in a 2.5 cuft enclosure tuned to 32hz. it is being powered by a "1600" watt hifonics amp (soon to be a sundown saz-1500d). i LOVE how the sub takes on the task of playing songs such as hypnotize, white girl, etc... however when i slap in a cd of something other than rap... there is little bass, if any at all. would changing what my enclosure is tuned to give more response on kickdrums and the like? what i am looking for is something in between the notes in rap and the notes from kickdrums,etc... from other genres. thanks in advance for any all and suggestions

hello i currently have one 18" bl in my trunk and the box pretty much takes up all of the usable space, i have this box : http://www.subwoofertools.com/forum/ported...mp;Fs=&CE=0 Anyways i was wondering if it's possible to fit a second 18 while still keeping the box dimensions because i can't make it any bigger due to space restrictions..any help is appreciated..thanks

Ok go easy on me fellas. For the past 4 or 5 months my Bl 18 has been in a wooden box without paint or any covering. So Saturday I decided to paint my box. So I painted the box black. Then I wanted to get creative. So I chose my colors to be black and gold. I tried to paint my dustcap but I messed up and now I need another one, but I was wondering if I could get my new dust cap in my custom color. Now this is a thread made for helping not talking down on. My sub works fine the dust cap just looks like crap. Oh yeah I already admitted my mistake and learned from it. Please offer advise and don't state the obvious.

I plan on ordering a SSD 18" pretty soon and I'm attempting to make my own box. I'm only 16 and I'm not very good at math so if you guys could help me it would be greatly appreciated. I used the box calculator over at ssa and this is what I got. The 18" SSD needs 6-10cuft and needs to be tuned at 33hz, well I came up with some numbers and I got 19.5"H/ 36"W/ 18.5"D and after displacement that gives me 5.9cuft. And then it gives me the port length, area, and volume. (Port Length = 0.722 inches) (Port Area = 7.069 inches squared) (Port Volume = 0.003 ft cubed) What do I do with those numbers? I have no idea of how to tune a port or anything like that so I will need some he…