Fi Technical

so i have a question? i have a Fi BL 12 that i beleive has a blown voice coil (soon to be fixed) but i was looking on the Fi re-cone page and started filling out the details and it asked me about the basket and the stacks? can some one please explain to me what those options mean? Every one input is aprreciated.

Ive been looking for a "special" basket for my 05 15 XXX woofers for a while and i was wondering if FI would be able to help me out? I know all you guys use are the 12 spoke but i was wondering if you had anything different could make somethign different or knew where i could get something different? (other then the 12 spoke or the 6 spoke DD design) Im honestly in love with the last generation of the fosgate punch HX2 baskets but since its been some time since they sold that woofer i havent been able to pick any up.... So got anything for me scott?

2 12" Fi Q subs in sealed separate 1.2 cu ft chambers powered by an AudioQue AQ2200 amp. On the amp I've got to turn the gain and bass boost all the way up and on the head unit the subwoofer and bass levels to the max just to hear the subs, and barely at that. Something is wrong here, and I need some help figuring out what it is. I've double checked, redone, and double checked all the wiring, and it is correct. The subs are 1 ohm DVC, and measured at the amp, is exactly a 1 ohm load. The polarity is not reversed anywhere. Tested the DC power at both the battery and the amp to see they are the same. Tested for a ground loop to find none. I'm at a loss as to what to look …

Hi im looking at getting two 15in btl n2's. Just wondering what kinda battery i should upgrade to, and if i should have it in the back or under the hood. what kind of alternator would be good to upgrade to, i seen power bastards and dc power. Does ur alternator volts have to match your battery voltage.

thinking about running a second battery in the trunk. i was told there are two ways of doing this. 1, using a isolator and 2, running the + from the front battery all the way to the second battery and then ground out the negitive. are these both true? what should i do?

would i be fine if i just did the big 3 upgrade with 0 gauge wire. I have a 12bl fully loaded and a sundown sae 1200d.

Hello all, First post here, so be kind to an old-schooler... Looking to do a bed box in my Chev 1500 step side. Max dimensions I've got are: Width = 48 Height = 18 Depth = variable I'd like to go with 2 BTL 12's, dual 1ohm. Both subs will be powered by a RF T2500. Wondering if one of you fine gentleman would point me in the right direction with: Net Vb for common chamber enclosure... 2.65 cu.ft. per sub? Optimum vent dimensions based on a 16.5" vent height? Hopefully I provided enough info... I certainly don't expect a full design, maybe just some guidance. Thanks guys, C

I ordered my btl a few days ago (fully loaded) and now it's time to buy an amp, what do you guys think of soundstream? The sub will be going in a 5 cuft pored box tuned to 32 hz Not trying to spend more than 500

I ordered 1 18" Fi SSD. I plan on getting another one soon. And was wondering what kind of amp I should get? I went ahead an got the dual 2 ohm voice coils on the amp. I'm looking for something cheap. Possibly well under $200? Currently I have a MA audio 18" 1100 watt amp with a legacy audio 2000 watt amp and it hits hard but it doesn't have near the quality I'm looking for. With the new SSD I'm looking to run either a 1ohm or 2 ohm config. Not sure yet what to do. Any ideas? I'm also wanting to run the SSD at atleast 650wrms 800 would be perfect.

Im going to be starting my first build soon and i've decided to go with the Fi X12 but I was wondering if you guys have any suggestions on amps for this sub? I want to squeeze every bit of power out of this sub Thanks for any suggestions! Sub Specs SINGLE 2 | SINGLE 4 OHM Fs: 35.6 Hz | 35.8 Hz Re: 1.9 Ohms/coil | 2.9 Ohms/coil Qms: 5.58 | 5.55 Qes: .47 | .47 Qts: .44 | .44 Mms: 127.9g | 126.1g Cms: 1.6mm/N | 1.6mm/N Sd: 481cm^2 | 481cm^2 Vas: 50.7 l | 50.7 l Spl: 88.7dB 1W/1m | 88.8dB 1W/1m Bl: 10.8 N/A | 13.2 N/A Xmax: 18mm | 18mm Rms: 400W * | 400W * Sealed box: .6-1.1 cuft | .6-1.1 cuft Ported box: 1.6-2.2cuft | 1.6-2.2cuft Sub OD: 12.500” | 12.500” Cut ID: 11.125” |…

So im about to order two fully loaded BTL 15's and Im trying to decide whats the best amps or amp to push them to the max. Right now im looking at 2 kicker 2500 or two rockford 2500. Any suggestions?

Just lookin for some input on an amp that will power a fully loaded 12in fi bl at 1 ohm. My sub will be here this week so i want to order my amp soon. Any input will help. Please state the amp/amps you reccomend and why.

I am set on getting 2 15" BTLs, but I am trying to get some help from you guys on who makes really good enclosures. btw im obviously a noob

I have 2 Konaki 12's with Incriminator Audio recones on them. Overall they sound great and hit the lows great, but the power handling is lacking. I have them both on a Crunch GP3000D-Pro which is putting out between 2500-3000 watts given my electrical right now. The amp is set correctly and the system thumps hard, but it seems like they bottom out wayyyy too easily. I play a lot of low stuff (<36hz) and when I turn it up too loud, the subs bottom out. Basically, I'm wondering if Fi would have any options to boost my power handling to 1500+ watts a piece and maybe some spiders that would stay stiff and allow me to play low frequencies at high volumes without bottoming o…

Im running a single sundown 1500saz for now, but might get a second in the future. My vehicle is an ex. cab S10 that I can fit roughly 7-7.5 cube ported box in. Im wanting the most SPL out of my setup and I am comparing 2 15" SSD's against a single 18" BTL. I know my 1 amp wont push the BTL to its limits, but it should do very well with the SSD's. My question is will I get the loudest results running the Sundown at 0.5 ohm (18-1900 watts) with 2 15" SSD's or a single BTL 18?? thanks in advance! Cody

Alright guys, so i have a dual 1 ohm q18, and i need an enclosure, the specs on the website aren't specific enough, i want to know what size sealed enclosure, would be best for sound quality? I am getting my enclosure professionally done by my local car audio place, and he needs the specs that i want it at. also how do you wire the 1 ohm subwoofer, i'm new to this-lol so please get back to me on this asap. thanks -aj

i'm not sure what would be the best way to wire my new bl...if you guys could help that'd be great..it's going to be put to a jl 1000/1 thanks in advance..and if you have a diagram post that to..thanks

I'm sure it's probably not a big deal but my my dad had accidentally barley scratched the surface of the surround of my sub and decided to put a bead of epoxy to cover it and I was kinda upset .. And also while removing my sub from the box my right hand had slipped and accidentally hit the dust cap .. Nothing was damaged because of the hard cap but will these effect my sub and should I worry about it or is it not a relaly big deal?

I'm sure it's probably not a big deal but my my dad had accidentally barley scratched the surface of the surround of my sub and decided to put a bead of epoxy to cover it and I was kinda upset .. And also while removing my sub from the box my right hand had slipped and accidentally hit the dust cap .. Nothing was damaged because of the hard cap but will these effect my sub and should I worry about it or is it not a relaly big deal?

I am curious how much of a difference there is between a 2ft^3 and a 2.5ft^3 box tuned to 32hz for a 12" Q. I've read that bigger is better for ported boxes, but 2ft^3 boxes tuned to 32hz are readily available on e-bay. Would I be giving up a lot of output or response for the convenience of an easily available box, or would this be a good buy? If it matters the Q will be powered by a 1000 watt MB Quart raa1000, and going in a 93 Saturn coupe.

Me and my friend are about to hook his car up with some Fi subs. We are unsure of what really seperates ported from sealed and how power makes a big difference. Right now we are lookin at 3 Q 10's sealed, 2 Q 12's ported, or a 12" BTL ported. Q's will get 1k watts each, the BTL 3k to 4k watts. We listen to everything from heavy metal to rap. What we are lookin for is a rough idea of how each of these setups will differ in every aspect. I know it sounds like a lot and we are grateful for it. He says he may wanna compete in something with it later, so that is something we need to keep in mind. Any help or suggestions would be great.

i have had my fi q installed in my car for a few weeks. today i was listening to it pretty loud, but nothing too crazy when all the sudden it stopped. my power light on my amp is still lit up (jl1000.1), all wires are connected. any advice or thoughts on what happened?

I have a 12" bl and I currently have it wired with 16 gauge speaker wire and I am about to re-wire it with 12 gauge, by doing this can I expect a a change in the output of the sub?

what add ons should i get on a 15" BL if i plan to use it daily powered by a sundown 1500?

What is the 15" bl in sd or the cone area in inches not sq inches.