Fi Technical

Ok in 2007 i bought 2 fully loaded 18bls. and had them in my 95 deville. but now i have a 03 and the trunk is a little smaller. right i just have one in with a 6. 75 ft3 box tuned to 32hz. well my other one is just sitting in my room wanting to be build. Ive blown both of them but reconed one couple months ago. but i want to put both in my 03 .the max size in my trunk is 41x40x15. if i keep it at 32 hz the ft3 will be 7.55, i know many will say that would be way small for 2 18s but i already got might as well just make a new box and put it in. My question is would both of my 18s at 7.55 ft3 be louder then just one at 6.75 ft3?

hey whats up i have a btl 18 and a audioque 3500d and i was wanting to build a box tuned at 35hz my max deminsions are H27 x W37.5 x D22 if anyone can help me out thanks

I am having trouble figuring out the proper dimensions and port area for 2 12inch Q's. I want to have a total of 4 cubes tuned to 32 hz. Any recommendations?

My SSD15 is coming this Friday hooray! So, I'm starting to plan out my install and i was wondering which way i should face the box. I have an '09 Jeep Liberty (the newer longer boxier model). I'm not able to build a custom box or get a good one made at the moment, so i bought a box that should be within the reccomended size and tuning ranges. Things to consider: Box has port and sub on the same face. Sky slider roof - its like the ultimate sun roof without the whole roof coming off. It slides from the front to the back and bunches up accordian style, so if box is facing up it won't be facing a solid exactly. Box can fit any direction in trunk. Just lookin for some inpu…

Hi, i have a blown tensil lead on my X 12 and i was wondering if Fi could re cone it or replaced the bad lead. This isnt my first blown lead. Before i replaced them but in removing the dust cap i cut through my cone, so i'd rather send it off to Fi. Does Fi cut off the dust caps for this kind of work? or just recone the sub? If a re cone is needed to repair the sub, is there a recone available???? Thanks!!!

ok here's what i got...99 mustang rear seat delete wanna do a bl 15 d1 sub up port back in a 4.36cf box@33hz(that's internal)...i was told on here that fi's specs for cf are after speaker displacement...internal dimesions for box are 15x15x33.5...as for the port i got 4x15x25.66....does this sound cool...btw that 4.36cf is before port/bracing deplacement..as i stated earlier i was told that the fi specs for speaker displacement are already included....if someone can confirm that this is all good i would greatly appreciate it

Curious if anyone wanted to help me out by designing me a box for my 2 18" bl's. i want to build it myself for the experience, but dont trust myself designing a box. Obviously new 2 this, if interested i can give u max dimensions and other info for my 98 tahoe. Im plannin ahead and not ready to build box yet, but just would like to find some1 to help me out. Thnx for the responses.

http://i222.photobucket.com/albums/dd246/s...ke/boxspecs.jpg http://i222.photobucket.com/albums/dd246/s...tycake/box1.jpg http://i222.photobucket.com/albums/dd246/s...tycake/box2.jpg ok what do you guys think of this box. i am going to build it for 1 12" SSD fully loaded. i used re box builder. is it any good? i havent taken the corner pieces out of the total box volume or the sub itself yet, but i think it should still be within 1.8-2.5 cft. and i am wanting to know where i should put braces. damn, maybe after the braces, i would be out of optimum volume. also i was wondering if it would help if i filled the lil slits from the corner pieces with wood filler.

Hi. I just purchased two 15" Fi BL's and im looking for a ported box that would meet the desired dimensions for the subs. Can anyone help me out and point me in the direction of a box i can buy. Thanks

questions: what do i do to get my 15 reconed? how much will it cost? and would it be kinda cheap?

My personal car is a 1991 Honda Prelude and I've been dreaming up ways of upgrading the system from its rather small old rockford p2 set up(old school black and red coned rockford p2s). The car is small, the trunk is even smaller, comparable to a mustang trunk. The trunk opening is much like a mustang, opens like a lid with rather small clearances. I'm thinking of putting a dual BL 12" set up in it, building the box inside the trunk to achieve hopefully around 4 square feet. The rear seats are gone, so there is an opening to the trunk, would it sound good to place the port in that opening? I know not to cover a port but I've never heard anything rather direction or place…

i have a center console box for the rear of my crew cab titan.its 1.7 net and i want to do 2 BL 10's.after sub displ. its .7 per sub.my port is an aeroport.3"x10" so that 30 sq.in.will this work and sound good?thanks

what do i need to change on my cut list to have my box tune to 32hz? Tthis box is tune for 28 hz

I see pictures of raw boxes with Fi 15s and up in them and they all have double thick (looks like) 3/4 inch mdf. So is this really necessary? And if it is, what about the sides, do they need to be doubled to? Also whats the best type of bracing to use?

I originally bought a FI Q 12" dual 1 hoping to run it with a JL 1000.1v2 so I didn't really think much or care if it was dual 1 or dual 2. Unfortunately for my plan the 1000.1 would not of fit due to space restraints where I planned to mount it in my car. I instead went with a Sundown Audio SAX 1200Dv2 running the 12" Q @2ohm with ~700 watts. I find that the bass is adequate but when I look at the cone I can tell the excursion is not what it could be since im running it underpowered. Im wondering if I should sell the dual 1 I currently own and instead buy a dual 2 and run it at ~1200. What amount of DB sound difference would I be looking at? How much am I losing out exac…

Ok i'm going to be building a box for a Bl 15 4.0^3ft @32hz. And I was wondering where would be the best place to mount the speaker in the box. Its going to be a slot ported box. Should i have it closer to the edge of the port or the other end of the enclosure? What about the top? I hope this isnt to confusing. I just want to know if there is an optimal position for the sub on the box.

i have a 10" ssd on order and am going to get started on a box was just wondering if someone cd look over my design. its a truck box its 35" wide 14.5" tall and has a 5"/9" angle / wedge. im using a 3" psp aero port that will be 17" long. running about 750 wrms. does this sound good? thanks brandon

Just wanna say i got my woofers after checking the status everyday for 2 weeks... perfect condition and they slam. once again thanks for being so quick and professional, these woofers are amazing. i do have to get more stickers though, 1 per box? cmonnn! -Kyle

hey guys need to know what kind of amp should i get for my fi btl 12 fully loaded at dual2... whats the max i can go with rms for this bad boy..its 2krms on the home page but it says that for every btl...can someone please help me...please

would a tline work for my bl 10 ive always wanted to try one

I was wondering if anyone know the spec sheet to this enclosure at 2.5ft^3 32hz. 3-D diagrams don't hurt =D

I want to get a a pair of Fi ssd 15's and i am building a custom sealed enclosure for them, fi suggests between 1.5 and 2.5 cu ft per woofer, does this mean that 2 feet would be the ideal? this is my first time designing my own encosure and i would like to have the optimum internal space. would a 2.5 ft^3 make them hit any deeper or will they sound better with 2ft^3 (these volumes are AFTER displacement of course) i am really going for a sq build here please do not try to talk me up to the Q,, i am sticking with ssd's with the bp power upgrade the standard coils that being said i would love to be able to hit the low note in "put on" with this setup i am not incredibly…

I've gone through almost 20 pages of this forum and still not sure exactly how I should build a box. I've got a general idea, done some research, but I'm hearing/reading different things. I plan on purchasing a fully loaded 18" BTL very soon, but want to get the box out of the way first. My max dimensions I'm working with are, 39" Wide, 20" height, and 24" depth. I want it to be sub up, port back. This is going in the rear of a Nissan Pathfinder. I'm also wanting to get it tuned to around 32-33hz, that's where I'm having trouble. After sub displacement, and a port tuned to that frequency, how much cubic feet would the box be if it was built to those max specs? Just from a…

i was wondering how much a 12btl, 15btl, and a 15Q weighed thanks in advance

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>