Fi Technical

Hey guys im looking to try out the maxx link but i have a question for ya. Im gonna be running 4 kicker zx2500.1 amps and 2 18in Btl dual 1 ohm subs. The zx amps are 2 ohm stable and i was wondering if there is any possible configuration to have the amps see a 2ohm load once strapped. Also would i be better without the maxx link and running each amp to each coil? What ohm loads could i see there. thanks

I have an 18" Bl and i want to know what gauge wire you think would be best to run from the speaker terminals to the sub from a Rockford Fosgate T1500-1BD. Thanks!!! I want the most power i can get to it so im thinking 8 guage but may be too big so please help!!

I was looking into getting a btl 18” I was wondering which option would be better a dual one or dual two ohm subwoofer??? Thanks in advance

Well i decided to see if my 15" Fi BL is working before i get my box so i installed it without the box... I wired it parallel and when i turned my car on to play some music I would say about 1 min smoke started to come out ... it wasnt very much smoke but i need to know if this is normal for a new sub to do that.. also the sub was getting hot... what could be the probelm??? :

Fella's, I was wondering would it be better to fire my 12" BL's forward in my SUV or to the rear towards the tailgate? I cant fire them up so its either forward or backwards? Thanks in advance.

i bought 2 bl 18's d2's in 2008, one in october, one in november. Now i am wanting to run 3 18's but was told not to mix those 2 with newer bl 18. I got these 2 with cooling, flatwind and universal options. Do you have any older bl's in stock or stuff to build one? Or could I run a new one with those? thanks

I picked this sub for cheap and all I have to power it is a sundown that pushes 600rms at 2ohm just was wondering if it would be okay to give the sub such low rms compare to what it could handle. or should I just get another amp that does 1000 at 2ohm. Also I have kinectic batteries with a 120amp alt wondering if that be fine or would I have to upgrade it anything. 12.8v and 14.5 at startup i think.

can someone please help me out here? i need a box design for TWO 12" Fi Q's!! tuned to about 33 hz. and the dimensions (height) should be able to fit in an 07 altima with limited trunk space or theres no point lol. thanks a mill

I recently purchased a 12" Q series sub. I am installing it in a ported enclosure and I am curious to the size and tuning. After purchasing the sub I found a deal too good to pass up on an amp that is a little underpowered for the Q. It is a kicker zx750.1. It puts out between 800-900 watts rms. I see on the pinned topic at the top the recommended ported enclosure is 1.8-2.5@ 28-33hz. With 12-16 square inches of port volume. My question is should I change the box size or port area since the speaker will not be driven at full rms power? I want to get as much out of the speaker as I can with the power I have available. I thought I would ask on here instead of calling seeing…

Hi. Has Fi or anybody had any luck with running the ssd 15's sealed. I want to change to a sealed for my next setup. Looking for daily driver/occasional bassracer. Isnt' thomas rourke jr using his ssd 15's sealed? I was thinking of running 4 ssd 15's sealed off my Atomic 5000.1.

I have an 12'' Fi Q coming soon and i needed a box and i dont have time to do one myself so i went to the local audio shop to ask him what would be the best option. The owner actually held the loudest street car for two years in a row fyi....but I drive an f150 and i have a spilt rear seat. I wanted to take out the smaller section and have the box in that area so it wouldnt take up room for my passengers. His plans for my box is to have the sub face the floor of my truck as well as the port facing the floor. It will eventually exit out the side (meaning the port). He says that it will have the right cubes and hz. He says that when the sub faces down, it will shorten the …

Well, i've figured out that I can fit a 5.5 cu box in my trunk, now i was originally going to go with two 15" btl's but after taking measurements, it seems like my trunk would be more suited for two 12" btl's. My question is, which would sound better/be louder/hit lower freq's better in a 5.5cu ported box? they will be tuned at about 32hz Any help would be appreciated, thankss

Does the sub come with aluminum or copper coils? sorry if theres a thread about this but i looked on the site and couldnt find a difinitive answer on this. Also what exactly does the BP power option do, does it effect the sound of the sub whatsoever or is it something just to help with thermal capabilities of the driver? thanks in advance.

hi i need to rebuild a couple tc9 based eclipse subs and i was told this was a good place to look. how can i go about purchasing a recone kit or two? they are 12" subs dual 4 ohm coils. im looking for something that can hopefully handle more power than the eclipse coils thanks in advance chris

Hey everybody, I have a BL 15 dual 2 with every option except universal and extreme leads. I am currently giving the sub about 1400 watts RMS. I am pretty sure that it can handle this, but since it is quite a bit above the rated power I just wanted to be sure that I am not going to blow the sub (because it gets REALLY loud). I am sort of afraid to turn it up all the way right now so any advice would be appreciated. My amp is a Lanzar Opti2000D and my head unit is a Pioneer DEH-P6900UB (if that matters...) Install pics (just for fun): http://img85.imageshack.us/img85/3536/dsc04662lz5.jpg http://img132.imageshack.us/img132/7650/dsc04659ym2.jpg http://img152.imageshack.us/…

Ok, so I was wondering. A 12 in it's largest recommended enclosure, or a 15 in its smallest recommended enclosure, which has the more potential to get louder? Playing around with ideas here. Thanks, ~Trevor

Will tuning to 35hz be good for daily driving? Alot of people say that tuning is a little to high for a btl. What do you think?

Hey i just bought a 15" bl. i was looking around and everyone said a 4cubic box would do but anyone have any cut outs or exact directions. im not sure what i should tune the box to? hertz?? anyone have any suggestions!

As some of you are aware, I have a pair of Q15's sealed in a 4.4ft^3 enclosure. I had to build the box ackwardly to make it fit in a G35(sedan) trunk. I enjoy competing at local comps, but want to see if I can increase my output. I am pretty steady with hitting ~148db at the dash. My question for you box gurus is with the given specs of my sealed box only being 4.4ft^3 would I still get an output increase if I added a pair of external 4" aero ports (actually just pvc) and how long should they be to tune to ~34hz? Specs again: Sealed 4.4ft^3 (2) Q15's Desired tuning approx. 34hz using (2) 4" round ports What length?

i know this is a real noob question but what is the cutout diameter of a btl 18"?

Does the Fi btl ufo single slug motor(the solid slug not the pie) require the risers hwne reconing? i only have 6 can't find another set,so i can do 3 per sub(i have 2 mags and am reconing both subs) Do I need the risers? its for daily. if you know where i can get some risers let me know(if needed)

When I took out my subs I found a brownish materials on the sub terminals. Upon inspecting, I suspect the glue from the cone to the surround is melting. Is there any reason to it? Also would any glue which is strong enough would fix this. I plan to use the 10 minuted epoxy as its avaiable in anywhere in my please compared to the CA glue or the original glue that was used. Would the epoxy do its job without affecting any performance? thanks

Like the title says...I'm a noob, I just like alot of bass. so i just ordered a fully loaded BTL and was wondering if someone could help me get some dimensions for a box. The box can be about 35 long and 20 wide and however tall. I obviously want it to be ported. Also, I was checking out the RE calculator..Is that accurate at all? If someone has some box dimensions for a box they built themselves for their BTL I would love to see them. Thank you

i wanna run a fi ssd 18 off a us amps xt 1600.2 in my sebring.. but im not sure if i have required space for it in my trunk.. i would probly have to face the sub up and port back to make it work. what do you guys think..

What wiring Options do I have with Dual D1 Coils for 1 and 2 subs need all the wiring possibilities. Thanks in advance