Fi Technical

So the plan is to buy 2 Fi BL 12's dual 1ohm, with the cooling option and flat wind what is the new rms power rating (approx) I know it depends on the enclosure so optimal ported at 33hz. In a Jeep Grand Cherokee I plan on running the two on either a Re audio VLX-3DE or Hifonics BRZ2400 (2400 watts)

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.

First post guys, so please bear with me... I'm looking at a 12" Q for my sealed enclosure. Here's the thing, I've got an enclosure that's .88 cu.ft. I did the search and came up with what seems to be a optimum 1.2 to 1.3 cu. ft. Here's the question, how will this driver respond in the .88 sealed with 750w rms? Thanks guys.

Hey, just contemplating buying a Fi Q 12" off someone and he claims it is "Fully-Loaded" and after asking him is there is any proof of it being fully-loaded he said no. He then said now that he thinks of it, he's not sure if they are, as he only got told that when he bought them off someone else. So, is there any way we can verify if they are fully-loaded or not? Say a Imprinted serial number somewhere and you might have that particular build in your files somewhere and you can see if they were upgraded? Oh he has 2 for sale, thats why i said "If they are fully-loaded or not"....my mate might get the other one!! Thanks, Regards.. Craig

I'm looking into getting an Fi Q 15" subwoofer. I want a great SQ sub so I figured this was the way to go, but now I have a dilemma. I'm not sure if I should get the high QTS or not, I know I'm probably going to put it in a sealed enclosure, but I'm worried, if that isn't right for me. If I change my mind in the future and decide to go ported, is the high qts going to be a problem? Thanks.

So to start things off I have a 2000 silverado ext. cab. I am very interested in the FI Q series subs but have a quick question for those of you that are more knowledgeable than I. I would like to keep my back seat and put two subs underneath the seat, now my question is. which would be a better setup for a daily driver? I have approximately .8 cuft available for each sub. would two 12's sealed or two 10's ported be a better option? I understand that .8 cubs fits in both categories but have also heard that the 12's really need somewhere around 1.2-1.3 cuft. I listen to huge varieties of music at all different levels. and am not so much interested in hitting 145 db at one…

have a tc9 motor, want a Q recone and im getting a 10" 12 spoke basket from someone. wondering what is the difference i need to know to know if my tc9 is too shallow or if its ok for the Q coils

I have a 04 Ford Expedition, i have built a enclosure behind the 3rd row seat, what i have is 2.46 cu ft, I would prefer a sealed enclosure, I know this is large for sealed, but i can shrink it if needed, my question is: should i go smaller ? It is powered by a Crossfire VR 1000d, I listen to mostly music like: Slayer, Exodus, I also listen to alot of classic rock, metal, punk, etc...ever so often I will play a few bass cd's I have from the days I did dB Drag shows. Thank you for your help.

Hi. Im from Romania and i bought 8 or 9 months ago a FI Q 12''. As far as i know there are 2 speakers sent in Romania A FI Q 12 AND A 15. OK i have a little big problem with my fi q 12 sub. the spider has unsticked , or broked , from the center of VC or how is called in english and that makes the sub scratch if i play music. i stopped the music since that day cuz even if i slowly hit with my finger the surface is does pack pack !!! oufull sound. and... i expected more from Fi ... i never tought it will broke. by the way the voice coils are intact. tHE power that the sub recieved was 900 w/ 1 ohm . thanks ... i hope u can help me. http://img76.imageshack.us/my.php?image…

I was wondering if it would be possible to use a Q 12 in an infinite baffle setup. I would only be using around 300-400 watts. Any help would be much appreciated. (I know Fi has an IB sub, but since I have the Q already I would like to use it. If not then ill end up selling it and get the IB3 )

i got rid of my RE SE 15 recently. ran it in 3 cube sealed,amazing lows, but looking for more output sealed if poss. could i expect more output with a Q 15 sealed due to higher excursion than the SE? if not and ported is the only way, will the Q 15 work well with a 28hz tuning in a box smaller than 4 cubes? my goal is amazing low end extension like my SE had sealed, just louder. i dont feel that a Q 12 will be capable sealed of this compared to the RE 15. amp is a Sundown sae-1200d

Hi guys, I was looking at the cut sheets for the fi Q 12 ported which is tunes to 32 Hz, and have a few question. what would I have to do, (if it can be done) to the same box, to tune it to 28 Hz? Or Would I have to build another box? Would you recommend tuning it to 28 Hz as opposed to 32 Hz ? What are the prows and cons? Thanks, Shopvac

Waiting till thursday to order teh new 12" Q but I want to get started on the box... I've got room for a 29.5x19x8.75 deep box... (this is going in the back of a 350z) This puts it at about 2.05 sq ft after the driver displacement. I was going to go sealed, but have changed to ported... I need to figure out the length of the ROUND port to use... I saw a post on the 350z forum where a guy used two 3" ports at about 32Hz "needed 34" total of 3" port to be tuned @32Hz" Can someone confirm, using your awesome math skills, that 34 inches total of 3" port is correct? I'll need to split the ports into two ports... I'm aiming for this look... FI Q12 in the Z... - MY350Z.COM For…

I am looking for sound quality mostly, not worried about if the bass rattles my car apart. If I go sealed would it be terrible if I went prefab from online? and if I went ported I am thinkin about 2 cubes at 30 or 32 hz. how big of a difference would trupan-lite over mdf make? thanks all

I have a fi q 12. I didnt choose the high qts option because i had planned for a ported box, but ported is wayy to big for my little trunk lol Would it matter if i put the sub, without the high qts, in a sealed box? If it matters, im going to put it in the smallest bOx possible I dont plan on running the sub to the max, just some extra bass for daily driving. Also, i hate rattling, so you can bet i wont run it any where near max output.

I have a fi q 12. I didnt choose the high qts option because i had planned for a ported box, but ported is wayy to big for my little trunk lol Would it matter if i put the sub, without the high qts, in a sealed box? If it matters, im going to put it in the smallest bOx possible. I dont plan on running the sub to the max, just some extra bass for daily driving. Also, i hate rattling, so you can bet i wont run it any where near max output.

I sent my sub off about a week ago to yall to have it reconed i was just checking the were abouts on it. . . i sent it to the address on the fi website. . . just tell me if yall have received it yet.? Thanks, Charles

Big C Again, I Was Wondering Within The Parameters Of 13Hx16Wx12D Would Be A Good Match For A Q 12" In A Sealed Box? Input Greatly Appreciated. Amp Is A Sundown Audio SAE-1200D. Q Has BP Power.

I have a bmw 328xi sedan and im gonna be running a single 12" fi q in a sealed enclosure because i wanted more sq the sub has the high qts option and the heat ring the website says .8-1.5 cu. ft what im wondering is what would be optimum size for the best sq for a wide range of music.

12" Fi Q with a rockford fosgate punch p1000-1bd Dual 2ohm coil sub wired to 1ohm in parallel 2.5cuft ported box in a 02 Impala tuned to 32hz ------------------- Is this a good setup and how will it sound. I listen to rap & want good sq but also want to blow people away. I also have a couple questions about the setup & about the sub -will it work & are there any changes or other amps that that can make it better for cheaper? -is the rf a good amp? -what component speakers/tweeters should I use? -should i upgrade any electrical (i will go to a yellow top battery already)? -will my alternator hold up to it (i know nothing about my alternator)? -do i need a cap?…

i was playing my fi q 12 with bp power on a zx1500.1 in a 4th order bandpass bout 3.5 cubes all together and it was sounding good and knockin nicely when all the sudden it stopped no pop smell or anything. . i took the sub out an everything looks fawless but i tested the sub with a battery and a dmm and the ohm reading is all wierd i was just wondering if i can have this fixed or what ill send it in if i have to i just want my sub back. . . . Please help. Thanks, Teddy

Alright right now i have a FI Q12" running 1000 RMS@ 1 ohm (with knob at 10% power) thing hits harder then hell right now, in the past iv always used sealed boxes and when i got this one i got a ported to see what the hype was about I want to get a sealed again but if i do will i lose those super deep lowes or is it the sub itself that makes them. (basicly i want to know will i get the deep lowes with a sealed)

I just ordered my 12" Fi Q (w/ bp option) and i could never be more excited for it to come. I'm upgrading from a JL Audio 13TW5, mainly for loudness issues. I have a couple questions however... 1. Will the Q be much louder than the JL? The JL is running 500watts @ 4 now off a Kenwood 9104D amp. The Q will run off the same amp for now, getting 900watts at 2ohms. I'm upgrading cause the JL is shallow, only 13mm excursion and barely moves any air... And I loveeeee SQ subs, but also want pretty loud... 2. Now before you bash on me and tell me I should have gotten a BL instead, I must state that i drive a scion tc, with an open hatch area, which is where the sub will be sittin…

ok, well i have truely made up my mind and will be going with the Fi Q 12". my question is, will this box be good for the sub i.e. enough room for the sub to "breathe"? Box specs: Depth: 11 Width: 30 Height: 16 CuFT: 2.27

I've had my Fi Q 12" (no BP option) for about a month and a half now and its been making a strange vibrating noise at certain frequencies since I bought it. I thought maybe it'd just need broken in a bit since seems to be hitting really well and doesn't sound distorted. But its still making the noise as much as it was the first day and its been broken in plenty since then. I made sure that it wasn't anything in my car rattling. I used an extra long run of speaker wire and put the box outside of the car and it was clearly the sub itself that was vibrating. Its audible with certain sounds in certain songs at a moderate volume but actually gets pretty irritating at high volu…