Fi Technical

Well im about to order my 12inch BL and i just wanted to get some opnions on which i should get the Hyper Pole option or the Cooling option? Trying to only get what i need to.. Im only going to be running a kicker zx750.1 to it.. so only about 800-900w..

Hey everybody i was wondering if I will get a better spl level if i face my sub towards the front instead of the sub facing the rear of the trunk.... My enclosure is 3.0 cf3 tuned @ 35 hz... Fi BL 15.... the car is a 05 kia spectra lx

Hi, idk if someone's read it in my build log but im looking for someone ho can create some blueprints for a dbdrag enclosure.. I'm also ready to pay a little tip for it so like said: Anyone out therer for help? I can give the max dimentionts if someone can do it.. faezich

I was looking at the options for the new 12" BTL im getting and i cant seem to find anywhere on the site that explains what the "HiXmCoil" and "I Heat Ring" do sorry if i overlooked something thanks for the explanations in advance. Tyler

alright im going to be ordering a 12 Fi fully loaded..and i plan on running around 1500rms at 1ohm. do you think i need to upgrade my electrical system. i have a ford f150 with a 130 amp alt...what do yall think???

I have a kicker ZX750.1 on the birth sheet it says its rated at 932 and I really want the 12'' BL So before i buy the BL i just want to know is this not going to be Loud enough due to only 932w? I really want it to hit hard so i can really Feel the bass..

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

Since I've bought the sub,I noticed they sell a fully loaded BTL.My sub only has 2 magnets.Is my sub the 2000w rms model,and what year sub do I have.my ride

sealed up at the kicks i hit a 144.8 with my single 12" BL. at the dash sealed i got a 144.3 the meter was an audio control. and i lost 1 db when i opened the window. song i used was airforces and hypnotize. they both did about the same number. Basically what i want to know is if this is a good number for a single twelve trunked car? could i get it higher by using a 50 hz test tone or somthing?

hey guys so i bought 2 15 bls last month and have installed them in a 9.5 cubic ft box with 102 sq inch port and have 2 amps at 1150 rms each going to them. for the first week it pound ed ma were i oculdnt even swallow. then just yesterday i brought it to a shop to get it db tested and hit a 150.9 with eas apparently says the guy. but i noticed after that the ext day t wasnt as loud to me or hit the notes as deep. did something happen to the subs or is it just my ears and body getting used to it. plus i dnt know wut to smell for or here? i know this sounds stupid but i dont want to do damage. replys would be greatly appreaciated!!

I just got a 1998 blazer (4 door) and transferred over my Sundown Audio SAE-1200D and 12" BL from my 99 grand am. The box is 2.5 cuft AFTER sub and port dislacement, tuned around 32-34hz (can't remember exactly off the top of my head) I have upgraded the BIG 3 with 1/0ga wire, ran conduit along the frame rail with 1/0ga to the amp. In my grand am I LOVED it, but now in the blazer it seems to be lacking... not sure what exactly, but it doesn't seem to rattle my noggin like it did in the grand am. My question is should I look at building another enclosure that would work better for the blazer? If so, how many cuft? tuned to? how should the sub and port face? Or is the blaz…

I am going to be ordering a 10" BL and was wondering which to get? Should I go with the dual 1 or 2 ohm? I plan on running it off the saz-1000d. If I get the 1 ohm, that would bring it down to .35 ohm, but with the rise, shouldn't that bring it back to almost 1 ohm? Just wondering as the amp reports that it is only 1 ohm stable. or would it be better to go with a Mmats 2100.2 and get the 1 ohm and wire them in series? this isn't something I need ASAP, but any ideas would greatly help the process. Or... another option is to go with the dual 1 ohm wired in series and go with the saz-2000d. Ideas?

hi all i have been planing a blowthru on my 01 tacoma using two fi q 18s and two soundstream trx2000ds. now i have come up with a few ideas for a box but was wondering if there were any pros out ther that would like to offer up some advice. i was thinking of having one sub on either side with a center slot port ond a combined volume of 22 cubes tuned to 28 hz. also i have heard pete from ttb has some great designs but he hasnt gotten back to me yet thanks

I know no one probably knows really for the 09 lineup but would the BL 15 really get THAT much louder than the 12 if they were both fully loaded? Or would it be a noticeable difference? I want to know if it's worth waiting however much longer for the 15, or if i should just order the fudgeing 12 cuz im sick of waiting lol.

I have a 12'' fi Q and when i got my box built the guys put a separate wire on each voice coil. Its a dual 2 ohm sub. What is the final ohm i am getting once i connect it to my amp?

I have an FiQ 15 and it bottomed out on about 5 notes for less than 30 seconds due to faulty ground wire. I was just wondering if any permanent damage could have been done to the sub? It plays fine now after securing the ground wire, but i'm just waiting for something to pop.

I was told by other members of this forum to email Fi about this topic, which i did, but I have not got a reply and it's been about a month since i sent the message. Any chance Fi still has recones for D4 X 12's? Or should I invest in an Ascendant Assain? Also, its just the leads. I've replaced the leads on one of my D4 X's already so i know i could do it, but i cut through the cone getting the dustcap off. Maybe I could ship the sub to Fi to get it repaired since they deal with things like this all the time? I'm just exploring my options! Since it's been so long without my sub, I am willing to repair it myself again. All I will need is four leads and a dustcap. Depe…

Alright first off sorry for so many topics about all the subs. Im just in the process of deciding and im all over the place lol. But i think i have narrowed it down to either 1 12" Bl with BP Power and Flatwind Coil or 1 15" Q with BP Power. Both will be ported. I will use the US Amps MD 1D (underrated 1200w @ 1 ohm). I drive a 2004 Ford F-150 and will be taking out one of my back seats so i have about 7cuft to work with. As of now i am leaning towards the Q because it is about $70 cheaper and because i also listen to not only rap but country alot... Just want to hear some thoughts and opinions. Thanks

My enclosure is 1.3 cu ft sealed, should I add some poly-fill to soften the boom a little if so how much should I use, 1lb, 2lb, somewhere inbetween ? Thank you.

I was wondering if the specs are close enough between the two subs , that can I use my old box (really not old, 3 months) to house my new Fi 18 inch BTL Sub.

Both setups will be run off of a Sundown Audio 2000D amp. I only have a space of 1.1 cuft per chamber to work with. I mostly listen to rap and want these subs to be able to lit the lows well.

Hello, I currently have 2 15" q series dual 2 ohm with the b/p option .I'm running these subs in a sealed enclosure and would like to try them in a ported enclosure of 4 cft tuned to 30 hz .However, the FI Audio site doesn't tell you about port length only port area. I was hoping i might be able to receive some help here.

ive had my bl 12"( just one) for about a week and its broken in but it doesnt get as loud as i want it too. so im thinkin i may have messed up on the box. can anyone take a look to c if i messed up on the box? dimension: 14.00" h 14.50" D 35.00" W Total inside volume BEFORE sub & port displacement = 3.15 cuft Port dimensions = 3" X 12.5" x 36 (L PORT) Port volume = 0.95 cuft Sub displacemnt = 0.15 0.95 + 0.15 = 1.1 cuft. 2.0 + 1.1 cuft = 3.1

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

I'm thinking about a having a box with the subs facing inside the car right behind the rear seats. I'm a bit worried though that the subs might hit the seats if it's not far enough. Any idea what would be a good distance? The subs are 12" Qs.