Fi Technical

I am thinking of putting my BL 10" in my 12" fiberglass box. I want to cut a new baffel to drop into the 12" cut out for the BL to mount to. I am wondering if I will damage the sub being the box is bigger then recommended, I think FI recommends 1.2 max, I dont know how much the box will be after displacement. I am going to be powering it off a RE 12.1 1200 watts rms. What would you guys suggest? I am contemplating doing this because my 1.2 cuft box is flipping over when I mount the sub inverted. It wont drop into the cutout because the basket and terminals are just touching, also, the fiberglass box is MUCH lighter than my MDF box. Let me know what you guys think.

Well it's time to move my set up from the S10 to the 325ix and have been crunching numbers to draw up a box. Right now I'm running my Q10 sealed at about 0.4ft^3 on a SAE-1000D at 2ohms. I will have considerable more space in the trunk of my car so Im wanting ported tuned to 27~28hz. I planned everything out so at net box volume of 1ft^3 I can use 3'' PVC at 22'' length to get 28hz. Now i'm no expert at enclosure design but I feel one 3'' port not flared will be too small? Pi*1.5^2= 7.06in^2 of port area. Id like some opinions on the matter. What do you guys think? Thanks, Mike B.

so i was on my way to work and i was subbing as usual..when i got the scent of like something burning..i really dont have the slighest idea of what it is but i can only compare it to like plastic burning..i noticed it only smelled when the bass is hitting low notes..so i get to work..8 hrs later..im leaving work and start subbing again, it plays about 10 seconds of the song and the sub goes out! and this was about 1 hour ago..so im pissed! i have no idea whats going on..everything is working fine except the sub..all lights indicate everything is good..do i need to recone it?? im not very knowledgeable with these audio systems! please help! this is my set up 1 18" fi btl 1…

Hey everybody, i have 2 2400 watt mono amps (linked together it makes a 2 ohm load) each amp is 1700 rms (by titanium power) im hooking up a Fi 15"btl 1ohm dvc. how do i wire my sub to have a 2 ohm load? Because my amp goes in protect mode at really high volume help please!!! i just have it wired like this (dont pay attention to the ohms) this connection works alomost to the highest voulume output on my stereo but then goes to protect mode http://www.rockfordfosgate.com/rftech/woof...mp;woofer_imp=1 i tried this but it gets the amp in safe mode at mid volume http://i81.photobucket.com/albums/j230/spa...SERIES-DUAL.jpg any help please!!

remember the 4 15" BTL's you sent to me for the SM3-4 build? you wouldnt happen to have a set of specs for those do you? lemme know please Thanx Peter

Hey I was talking to Scott about reconing my tc9. he said he could, but i think he has been busy lately so i'll post this here lol. I have the address still from and earlier recone i sent in, can i just send the sub in with a little note stating what i want with my contact info?? or would there be something else that i need??

can anyone explain what each acronym or letter means and what option/s it represents? thanks guys.

Hey guys i have a FI Q 10 that is run in .5 cu ft sealed its run by a Rockford Fosgate T2500bdcp. Problem is that when you get any kind of power going to it the driver seems to unload starts popping like its has reached the mechanical limit and this is what i would consider to be at a very low volume not sure what to look for to figure this out is there anyone that has had same problem. Please help really want to hear what this thing can do any advice would be apperciated.

I'm planning on building a box for my sub, but I cant find the parameters anywhere on Fi's website. does anyone have a link or know what the parameters are?

i want to build a box but have no idea how to go about finding a program some please help or design a quick one for me dimesions are 12W x 10D x 20H i used klaus but keep getting crazy measurements Custom Klaus Audio Subwoofer Box Enclosure Type Box Type: Single 10" Straight Ported Standard Subwoofer Box Item #: 022-015 Subwoofer Information Cutout diameter: 9.25 inches Mounting Depth 6.5 inches Enclosure Details Carpeting: Dark Gray Port Type: Slot Port Port Tuning: 33 Hz Port Dimensions: 11.25 x 1.25 inches (Height x Width) (port length is not displayed) Port area: 14.06 square inches Number of Ports: 1 Net Intern…

I ran 2 fi bl 18's 3 or 4 years ago off 2 sundown 1500s in like 15 cubes net. Now I am looking at running them again in a scion xb. I have a box already that is 12 cubes net @ 32hz, how well would the bl 18's do in this box off sundown 3500d? Would it be too small, the site says 5-8 cubes each. thanks for any help

Im wondering if anyone has some suggestions .. i know in the thread it mentions (after all displacements for those wondering). (I personally think that 1.2-1.3 cubic feet is optimal imo) but thats after displacements and i have no idea of the subs guts size. i am awaiting delivery of my sub so wanted to have the box ready. Thanks in advance

I have been searching all over the internet to find out about qts (never even heard of it before i was looking into Q's this isn't my first system, i just never accounted for it before. it looks to me like it is highly dependant on what you are doing fi q 15's have the cooling and spider upgrade options, that is it i am going for sound quality with this build, dual fi Q 15 in a sealed enclosure measuring ~ 2.3 ft^3 per sub (after displacement and bracing of course) each sub will have it's own rockford fosgate t-1500-1bd giving them ~1350watts @ 2 ohms (already had one and just bought a second off a friend, who said headroom was a bad thing) they will be in the back…

Ok, after everything i think i have finally decide to get 2 bl 15's. I just need what amp you guys would suggest using on them and i only have about 600 to spend on the amp. Thanks.

Well , finally got them in for recone. I had the pair ported on 1000w total and it was pretty good. I am going sealed now with 1000w on each woofer. (Zapco Studio 500 on each 4 ohm mono) So I see Nick really like the 1.1 sealed and other like the sealed in the 1 cu. Ft. range. My concern is for such a small box is that its not playing deep enough. I was leaning toward a slight larger, maybe 1.3 cu ft or so after displacement I would like to hear anything anyone has to say. Beat me up a little.

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.

i am looking to try out a new design in my ranger. this will be for a 15" btl fully loaded. my max outer dimensions are 50 long x 16 deep x 18t all. heres the kicker, i would like the sub in the middle of the box facing the roof and would like to have the ports doing the same on each side of the sub. i am looking to get it tuned to 30-35 hz. the only reason i want the sub in the middle is because my truck is bagged and i want the weight in the center for even psi on both sides. i live near milwaukee wi if anyone is wondering

sorry to make another thread about it, but i can t get anybody to answer me about my mt motor i sent to have repaired..its been over a month! i got a email from scott about it being fixed , then i never heard a thing ...i have emailed fi , and scott many times and no replies......am i ever going to get my motor back????????? or am i going to just never get it back......???? i was going to buy 2 btl 18's from you after i got my mt motor back, but if this kind of customer service is what i have to look forward to , im not going to buy a thing ........please let me know something please...

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 BL 15 dual 2 ohm wired to 1 ohm. How would I find the resistance? On the specs page it says it is 1.5 ohms, but since I have it wired to 1 ohm would it be different? I am kind of lost as to what my target voltage should be. Sorry I am just starting in the car audio scene so pardon my noob question

Hy, I need help with my new box, as the topic title says. My car is a Mazda3 hatchback; the sub-amplifier is USAmps XT4000.1 (on it`s box it says "CEA" ), I don`t know if my version is overrated or will provide 1500W@1ohm. I want my Fi to play loud, and as low as hell . I`m thinking at a box tuned at 28-30hz. Can anyone help me with a project? I`ll measure my trunk and i`ll post here the max. possible lengths for the box. PS: I`m gonna use the stock HU with a MTX Re-Q sound procesor...

Im building an enclosure for 2 12 BLs with 2500w RMS and I want to put a window in the back, Im not sure what the best material to use is, Ive heard different things but it seems my two options are 3/4inch Plexiglass or 1/2inch Lexan... Which is better?

DAMNIT, well i heard a lilttle noise coming from my speaker today, hadnt played it in about a week, but anyway, i pulled it out the box to find that i have 2 holes in the spiders from tinsel leads, and numerous rips, guessing its from playing below tuning. i need to know how much a recone is scott, i dont know wether i will or just sell it, looking to get a new truck and there wont be room for a BTL 15, its loaded by the way, What to do??????/

i already got the amp, would 1 saz1500d be enough for 2 BL 18s until i can sell the 1500d to get a 3000d?

want to know what fi soft parts to beef up my aa12" havocs .will the motor support an spl optiion or would it be better daily, or in between. .......... FRANKIN HAVOCS ON THE WAY????????!!!P.S. CAN YOU GUYS HELP ME!!!!!!