Fi Technical

Can Fi recone this sub, it has a Tc9 motor with 3 inch coils. A guy over on ROE is selling one, it is only the motor and 4 spoke basket.

Ok so here's the deal. This is my wall design for my two 18in. fully loaded btls that will be running 3000rms a piece. I have never done a wall build before so I'm hoping i somewhat got it. EVERYTHING is double baffled 3/4in. mdf . In the 1st picture showing the front plate it looks double baffled its only supposed to be single " which i just fixed and im to lazy to take and upload another picture" due to the fact that there will be another front vanity plate to go around the curves in the car all nice and snugly. The box is , 15.7341 ft³ BEFORE DISPLACEMENT 15.2141 ft* after sub displacement displacement port is 6 inches in height width is 29.224 in…

Looking to purchase 15" ssd d1 and it will be powered by a soundstream ref1.1000 (1000watts@2ohm). Have always wanted to do a single 15 sealed. So question is; should my enclosure be closer to 2 cuft or 3 cuft. I listen to mainly, metal, rap and techno. Any input on what size enclosure will work best for my music preferences would be greatly appreciated. Thnx. Mark Oh yeah, car is a 2001 VW Jetta. If that matters. Cheers

i currently ordered a btl 18 with 2100w amp and i also got a new high output alternator and kinetic HC 1800 high current power cell to replace my standad battery and was wondering if i need another battery?? just confused because do i need one under my hood and one next to the amp or just one? and if i need two can i get one smaller one for the back?

Can it be done to extend the gap limits?

Is the BP option really for people who want to compete? I'm looking for SQ in my 15 Q i'm getting. Is it something I should get or for people who just want to compete>? Thanks. Jess

Was wondering if those cut sheets are still optimum to today's Fi Q12?? I'm purchasing one at the end of this month and would like to build the box while I wait for delivery. Going for a ported enclosure but for fun was gonna build a sealed too and check them both out. Thinking of getting the sub fully loaded with every feature just cause I can and run it on a Q1-1200D from Soundqubed at 1ohm producing 1200watts. It will be in a 2005 jimmy 2 door so room is not a factor. I listen to all types of music and would love clear crisp bass but also able to bump it when I feel like it. I know there is no magic box that gives me both SQ and SPL just want good sounds on musical mu…

i am willing to use my whole trunk if necessary...you guys think it will fit?and sound good....i already know it will look good that thing is huge haha....also ...how should i wire it?...i have a t8002 for now but i am going to upgrade real soon...i bought the dual 1...any tips?

Welp im getting a 12" BTL from my friend and its fully loaded with all options but he bought it maybe like a year ago or so. Now im wanting to recone it to a 18", now my question is do i have the option of adding the HiXmCoil to the recone or is it already understood you get that with a fully loaded recone or what? Thanks for the responses

i currently have 2 12" Fi Q's in a monochambered enclosure tuned to 32hz for maximum SQ but no amps from what people have told me (2x) sundown sae-1000d should be perfect but my question is... if both subs run 1000 rms each, would it be better running (2x) 1000 watt amps or (2x) 1500 watt amps??????????? also, which amps would be ideal if money wasnt an issue? preferably brand name and specific model. thanks a MILLION!!! NOW HELP ME BUILD MY DREAM SYSTEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

15" btl fully loaded, box is 4.5^3 at 34hz. Install will HOPEFULLY be next friday. i know i didnt do that great with the carpetting, and yes my 20.1 is a little scratched up......

Hey guys. Can you recone a RE SX 15 to a 15" BTL? Let me know!

can possibly pull this off? i have a 1975 caprice with a HUUUGE trunk

i have 2 woofers that i had bought from Brian Owens off of CA.com that wer crossfire motors with a fi basket & BTL softparts. i had an issue with one of them before and emailed FI and got a fast reply and they fixed it and got it back to me within a week. well i have since torn the spiders on these woofers and contacted to get them reconed several months ago but got no reply. i just let it go and they have been sitting for awhile. well i sold 2 of the motors and ordered BTL recones to do it myself as i have done for other production BTL's before. well im not sure if i ordered the kits for the wrong series of BTL's or what but i did one and messed it up somehow the coi…

I have 2 12" Fi Q's and im probobly going to order a subthump box for them, because I hear subthump makes one of the best prefab boxes for Camaros and Trans-Ams. However, these boxes only have a total of about 2 cu. ft. and after diplacement that would only leave me about .85 cu. ft. per sub. These boxes dont take up the whole rear well though, so if you guys think it would be worth it, I could cut out part of the bottom of the box and add some space down there. Thanks, Ben

i need some help designing a box i have a 1999 explorer xlt 4 door i am running a 18"btl fully loaded daily on a fusion nv2500 my current box is 19h 24w 33d outside dim. with 2 6" pvc ports 15" long. ports and sub firing at hatch. i want to fire sub up and port back and change to a 30x30x16tall any help on port LxWxH would be grate!also any other input just looking to change up i was told sub up port back would be louder.

ok someone told me before that if they were standard 3" coils then they could be reconed. well i got bored and ripped on of my blown T1's apart. outside of the coil is 3.204"-3.244" and the inside of the coil is 3.020"-3.051". bent a lil bit, maybe from removing it. how much would it cost to recone? how much power would it be able to handle? would i just be better off buying ssd's? thanks. p.s.- any more dimensions needed ill see what i can do, its kinda hard to get into the basket with a 6" dial caliper . but ill see what i can do if ya need me to. the gap in the motor is approx. .145"

ive been using subwoofertools.com to help me figure out what my dimensions are going to be, but i have a problem. My max dims are 36x24x12, which correct me if im wrong is 6 cubes. but i cant ever get the depth to be close enough to 12 inches for it to work. id like the box to be about 4.5 cubes at around 34 hz. the closest design ive come to is 4^3 at 34hz, but that is with the xmax part at 16... im really frustrated right now.

hi there! im planning to purchase an fi q 12 and fi bl 12. i just want to know the shipping weight and shipping box dimension of these two subs. thaks in advance!!!

Before i purchase the new baskets and recones i would just like to have some info or how to swap the motors from my 12'' q's to the new 15'' baskets? what kind of tools will i need and is it easy to do?

for starters 2002 ford mustang gt double din jvc Big 3 upgrade 250 amp alternator running hifonics brx 2400.1 with 640.4 both brx changed up build was going to run 1 fi bl 12 dual 1 already ordered and on the way but ran into a fi btl 18dual 2 my game plan is to remove back seat and build sub enclose there web site says 5 to 8 cubes tuned 32 htz got just barely enough room for 7 cubic foot box with amps in trunk lol! Is it possible to get go low end with 5 cubes trying to open a little area other wise the 18 is 3 inches from my head in case I didn't say 18 is sub I will use also do have xs battery coming also I guess im asking for help to design size of box and port si…

Right now i currently have 2 boxes around 5.4 cubes per box @ 34 hz. I know i really could get the BL's to slam the lows alot louder if i got around 7 cubes per sub. SO with that being said im going to make 1 ported box*walled* and tryn get my max dimensions. I was going to get crazy and fiberglass all the nukes and cranny's but im really not the best with just winging it and figuring out port lengths and cubes when its not a regular rectangle. On to my question... Do you find the Sq. inches for port area before or after all the displacements. EX. I have 15 cubes to work with total 45x34.5x20 external dimensions for 2 18" BL's Do i multiply 16(rule of thumb) sq inches x 1…

How would i wire this my friend told me to get the dual 1 ohm and he knows what he's talkin about but the amp is rated at 1000 rms @ 2 ohms. Can someone tell me how to wire this

hi, im new to the forum and been looking through countless threads but cant come up with the best set up for myself. i would really appreciate everyone's help! i already got a system in my car but im not happy with the bass output (plus the subs are overpowered and keep going out). i mostly listen to rap/hip hop and want to be as loud as possible. currently, im running 2 boston acoustic g5 12s and 2 12" radiators off of a mtx 1501d. the enclosure is a custom install in my spare tire well which gives the 2 12s 1cf each, the radiators are separate. im thinking about replacing the 2 12s and the radiators with just 2 Q series 12s and i see that 1cf is enough but 1.3…

hey hey i just got one of the re xxx 05 model and scott i emailed u about a few things such as specs and a 18" top end lol the 15 just dont make me happy so i wanna convert it to 18 anyone know how much this will cost? my buddy john Mulcahy told me to ask scoot cuz he was the one that designed these subs