Fi Technical

What does the flatwind coil and bp power options do when buying the subwoofer? Im new to Fi and what the subs for spl.

I am getting 2 12" Fi X in a trade and want to know the t/s specs there are none on the website. All I know about them is they are 300w rms and D4. I thought to myself they were perfect for HT. Wire them series parallel and final load of 4 ohms, BASH500 does 500w @ 4 ohms. So, I just need to know some specs so I can figure out what kinda box to put them in. I want to put them in a tline since space isn't really an issue Thank you for your help.

i just purshased 2 18" btls.i have 4 cf for each 8 cf gross for both.i want to tune the box to 36hz .can some one tell me how many square inches of port opening and the depth ofthe port that i need.thanks

whats up i was wondering if someone could tell me if a 5.573 CF. after port and sub displacement enclosure with a port thats 12.5"s tall 5"s wide 20"s long tuned at 34.73 hz. sub up port back would be a good box for a 18" fi bl or would i be better off going with a 15" bl let me know thanks.

I'm looking at a BTL15, because I've heard good things. But until I get enough, I would probably be running 1 Sundown 1500d on the BTL15. If I got it optioned out, would it be able to handle a pair of strapped 1500d's? How much can a optioned daily driver BTL handle?

i am about to put my 10" BL running at 1 ohm on a lanzar opti2000d. This week I am installing an irragi 200 amp alt and a kinetik 2400. Will this setup destroy my sub? If so i'm going to get a DD9512. Let me know please!

im new to this so what do they all mean? and i want to get two bl 15" so do i get dual 1 or 2 to get 1 ohm?

I have a box design in mind (i just need a car to see if it will fit or not) which has two either 15 or 18 inch (depending on available room) BTL's or BL's. I am not sure though if these subs are designed to be able to share a box together. I was originally going to run just a single BTL 18" in a 7 or 7.5 cu/ft box, but i wanted a more good looking design, so, as an example, are you able to run two BTL's in a box of volume 14-16 cu/ft? Or the equivalent volume of the BL's? I'll try to draw what i want it to look like on a CAD program or something, but i would like to know if it possible first before i start buying materials. Thanks

what are the mounting depths and displacements of btl's when you get the extra magnet? i tried the search but nothing comes up. also, it would be nice to have it all in one place for future reference. *edit*..... i just read that you guys are releasing a new btl. in any case what are the mounting depths of both new and old?

I'am going to be getting a box built and was wondering what tuning do you guys think for 4 10" Q's in a 4 cube box? it will be in a SUV and I listen to rock and rap. Thanks

OK well, apparently the I didnt have a clean enough cut and the glue didnt hold my 1in thick dowels very well. The bass eventually flexed the fudge out of them. One came off and the other, well snapped... I noticed ever since around that time, the sub hits, but not as hard. Like its loud, but i used to have trouble breathing in or talking. Now I dont. Could the bracing have something to do with this since the box is flexing so much without it? Just a question is all. Didnt plan on replacing it.

I have been looking alot into the FI Subs and finally going to decide to buy my first FI Sub. I decided to go with the SP4 15. My first question is I need help with ideas/suggestions of my box. Now here's what I'm dealing with: 04 Cavalier Trunk Build sealed w/ sub and port forward. 2 XS D3100 in rear Taramps HD 6500 (Will keep gain down, want to do roughly 4k Watts to sub or suggestion?) Stock Alt (Don't plan to upgrade) Daily Driver, not SPL or competeting, just Pleasure to be LOUD I play All types of music from Decaf Slowed to Christian to Rock. I want to play to the mid 20s and up to the mid 50s decent, but of course tuning area gets best, but still some output 4…

What do yall think about this http://www.subwoofertools.com/forum/ported...mp;Fs=&CE=0 Would you make any changes or is it feasible.

Hi I need some questions answered on the x12. I need some input on what size and kind of box to put it in. I have a phoenix gold xenon 400.1 to power it and I listen to a lot of bass heavy music ( rap, chopped & screwed, etc.). I know what the website recommends but I would appreciate any input or suggestions. It will be going in a 1995 neon 2dr. Thanks!

Hey everyone i am interested in buying a Fi BL 15 and i have a chevy s10 ext. cab. My approximate space is 48" length, 17" depth, and anywhere from 17" to 28" height I have a few questions and would be happy with any answers anyone can give me.... 1. I am thinking about building my own box at 4 cubic ft. tuned at 32 or 33 hz, but i do not know how to correctly port a box. anyone that could help talk me through that would be appreciated. 2. An option i was thinking was facing sub forward but i didnt know with 17" depth if i would have enough space between the box and the magnet. (Mounting depth for Fi BL 15 is 8.250") Also if i faced it forwards my depth area would shrink …

so i hooked up my sub and amp. its a dual 1 ohm 12" q to a jl 1000.1 and it sounds like poo. i get a slapping sound even with the bass almost all the way down and the volume not even half way up. i havent tuned a jl amp before and theres all sorts of knobs and switches and what not, the box is sealed and around 1.2ft ^3 after the sub displacement. any help is greatly appreciated. thanks

in my first thread i stated that i had a mtx tc4001 that i wanted to use. but it woouldnt handle the 1 ohm load that the dual2 would have or it would have a 4ohm load if i ran it in series. if i get a D1 and run it in series wont that show a 2ohm load to the amp?

I'm looking for specs pertaining to a STRICTLY SPL setup using two BL 18's. What should the port be tuned to? How much airpsace do you recommend if I'm using a single chamber and acoustic coupling?

Hey everybody I have a Fi Bl D2 and i want it to play off a 1 ohm load off a RF P1000-1BD. I have and idea on how to do it but i need to be sure...

So I just recieved my 15" SSD with copper coil in the mail Thursday. I originally planned to go sealed in about 2cuft, but I have about 3.1cuft after all displacement to play with, so I was thinking about porting it. I wanted the install to be strictly sq, so I was thinking about 28Hz or so. My question is, has anyone here tuned it that low? If so, how's the sound quality? And if no one has, what tuning would you recommend for a sq setup?

I know people are going to say it depends on my application, but what would be a good starting net volume for a box for a single Team 15. Running on a DC 5K with 2 XS batteries and a Northstar 170ft. Do these subs like bigger enclosures? I will be slamming it daily but also doing some SPL. I'd like to tune it around 33hz. Thanks in advance.

Currently have a 12" BTL (D2, loaded, daily) powered by 2500D. Box is 2.5cuft @ 32Hz (after displacement). External dimensions 27" x 18" x 16". Port is 14.5" x 2.5" x 40"? (forget, used subwoofertool.com few years back) Would like to get a bit more out of the lows. They hit good as it is now, even down to 25Hz, but they could probably be better. Just wondering what I would need to do to make another box that specializes in the bottom end more. Smaller box? Larger port?..etc. Was thinking, maybe 28-30Hz tune? Maximum dimensions: 31" x 18" x 16"

I have two fi bl tens and I can't figure out which recone to get? What is the difference between the 2008 and 2009 model?

i am wanting to get the most spl i can i order a BL 18 inch sub i have a rockford power 10001 mono amp i am having the jb fisher place design my box and i needed to know what the best cuft size they said that 8cuft would probably be the best but they said i might want to post on this forum to make sure thats best

Ok. i am planning on getting 2 15'' Bl's. (Dual 1 ohm, cooling, and flatwind). How much power can i feed them without buring them up?