Fi Technical

I've got 2 15" BTL's and the tinsels have snapped off. How can I get some replacements?

Ok I got 2 18" Qs in a 12 cu. box at 28 hz. I know thats just barely the minimum for them, but thats the most I can go. I was wondering if I switched to a sealed box around 13.6 cu. would be more appropriate for these woofers. I havent heard what a Q sounds like sealed before so I was just some opinions on what you guys think. The box would also have bracing inside, so after displacement it would be around 13 cu. Let me know thanks ps..... the woofers would be facing towards the back

I need a box for meca event the 20th here is what i have to work with 18 tall 24 deep 49 wide please help i'm try to break the 50's sorry it's in a 98 tahoe

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 i'm interested in a pair of 18" btl's and i'm curious how much efficiency is lost by choosing the "daily" option and the "universal" option , these sub are going to be used in a streetmax truck but I may want to bass race occasionaly. I think i'm looking at dual 2 ohm,pole chamfer,thirdslug,hi xmax coil,daily, and universal for the build options on them how much would recones be so I could stock them so when i blow one i can just recone it and order a replacement instead of missing a show waiting on the UPS guy. Thanks for your time Charlie

Hi, I am currently having someone build me a box and they are looking for a cut-out template to cut the hole for the woofer. I gave him the cutout diameter but he wants a template to be sure. I can't seem to find one on the website. Do Fi offer one?

I have 10 foot of it to go from the box to the amp, and while I haven't seen the sub yet, I'm having a hard time seeing 8 gauge in a 1ohm configuration on the coils. Will it fit? Or should I use 12 gauge for inside the box? (This isn't really a question about power...I already have 10 foot of 8 gauge so it's more availability. I'd have to go buy anything but the 8 which I have)

Well i'm not sure if this is the right place to post this, but i'm wondering what options would be enough to get a 15" BTL at around 2600rms with ease? Thanks

I was considering a trade for 2 BTL 15s ( Single slug, spaceship motor), but the subs only have the cooling option. I am going from 4 SA-12s, and I like my lows. I'm powering them with 2 Audiopipe AP3ks. I was gonna run them in 3.5 per (7net), and tune between 30-33hz. I listen to alot of rap, low bass music, and I really want to be able to play in the high 20s/low 30s with authority. With just cooling, will these 15s be able to produce like I want them to? I'm only getting rid of the SAs to do a forward firing/sealed off setup, and I can't get 4 12s to fit in a blowthrough. I also wanted to see what FI was all about Thanks for any help

I'm Lookin for help with box design for a 98 chevy tahoe for 1 btl 18 i'm tryin to break the 150 mark i currently hit a 147.1 any help is appreciated will get demension soon

if i have round 8 cubic feet will two ports be ok? two of them at 3 inche's by 21? thanks for any help guys!

Hey guys im wondering if anyone has any dementions for a box or can set one up for me for my car i use the BL for DD and the box needs to be 37inches or smaller in width and 18inches or smaller in hight, doesnt matter depth. Does any one have dementions to i can build a slot ported box, im too busy to even set up all the hertz or know the specs for a box for this sub so can you guys help me out please?

Well here it goes, I am planning on running 2 18" Q series Fi's in my daily driver(2000 GMC Safari). I need box design ideas for this aplication, I want it to be more aimed at sq then db. I am running a Alpine pdx 1000.1 to each 18 at 4ohms at 1000watts rms. The room I have available for the build in the back measures 50 inches wide by 34 inches deep by 21 inches tall. plan on useing 3/4 mdf for box. Pritty much need to know everything what hrz to tune it at, How many ports, what size ports, slot ported or round. Let me know what you think any ideas would be a great help. Also when are the Q's going to be available to order.

Hey everyone this is my first post here great site!!! I got 2 12" Q's and the trunk of an SUV to work with. I need help with box design im looking into 4.5 ft tuned to 30hz I still want allitle room in the back just for misc. space. anybody have any idea's? or can u point me in the direction of someone who can help please

hey there guys i am looking for a box design. i need it between 4.5 and 5 cubes. either sub in center or on side. i want it to have interchangeable ports with tuning at 32, 38, 44 if its possible. i have money if anyone of you guys on here can design me a box for my 15" btl that would be great. i will get my max measurements up later today.

i was wondering if any one had any box specifications that they have built, and if you could pass the information along, im needing to build a box to fit in the trunk of my civic, only going to be running one 12 inch driver, and slot port, was wondering and anyone had any dimensions for a box, and port tuned to 32hz. thanks alot im new to this scene, so if i sound like an idiot, just tell me.

I've been searching google for a long time now, trying to find the actual formula. I have always used an online calculator when building my boxes, and ended up just building where I thought looked good. I was using this calculator here: http://www.carstereo.com/help/Articles.cfm?id=31 because I am wanting to build a new enclosure for my yukon, but I keep getting different figures depending on if the width of the port is larger, or the height. I want to build a box with 20ft after displacement so each btl will have its minimum 5ft. I was going to see how long I needed to make the slot port if I just stretched it across the bottom of the box. The box external dimensions are…

About to get started on getting a box for a fi bl 15. I have the space so was thinking about 4-5 cubes as one fi page suggests 2.8-4 and another 2.8-5? want to hit lows and still have it get a little loud and don't really know 100 percent about tuning but was thinking 33 hz ? Any suggestions I appreciate or input...power is a saz 1500d v3...thanks for your time

I got the box built a few days ago.. just wondering if I could throw the dimensions out here and you guys can tell me what it is size wise. He told me its around 8.7cubic feet and i think he said 32 hz is what its tuned too.. damn thing is huge, but here is the measurements 48 1/4th across, 20 1/8 height on the face plate, 24 1/2 tall.. the port i wasnt 100% sure how to measure properly so ill tell you what i did and if im wrong correct me and ill run out in the garage and re measure. I basically stuck the tape measure in the port, hooked on to where the inner port board stops and took that as my port depth measurement, which was 17", port is 6 7/8 wide, 18 1/2 tall, its …

I'm thinking of buying a FI Q to put in a sealed box in my spare tire well. The dimensions I have to work with are 24"(width)x26"(Depth)x10"(height). I'm a complete noob when it comes to building boxes but want to try to do this one. How do I figure out if I can make a box that will work with the FI Q with those dimensions and what size to make it etc?

Hey guys, i recently built a box for my 18" BL and i realized it doesnt really have the low end that I am looking for. So, I'm looking at blocking up one of my ports to lower the tuning. my question about this is the vent velocity. currently, its tuned to around 37Hz. if i blocked up one of the ports, i'd lower it down to 31Hz. Vent velocity is what worries me though: at 37Hz, I have a peak of 15.7m/s VV @ 25Hz at 31Hz, I'd have a peak of 22.9m/s VV @ 22Hz; i reach 15.7m/s of VV with the 31Hz tuning @ 34Hz Is it worth it? or will the port noise be to much? the group delay also jumps a little bit, but i'm not to worried about that because it all happens in the 24Hz range…

i've been reading about the whole tinsel slap thing and it's kind of scaring me... i got a single 15 hybrid transmission line built by stratusrt01 a few months ago, he okay'd to me that sub a btl would work fine in there, are their any plans in the future for any upgrades to the tinsel leads? i was thinking of getting a fully loaded 15, the car is 2002 caddy deville, the box is stout as fudge, resin on the seams, i'ma 250 pound dude and i jump on it all the time, and it's rock solid. i dont do music for the numbers, i just a daily beater, just trying to get some feedback from the people with experiance. Thanks in advance fellas.

i'm building two enclosures one sealed and one vented 3/4" mdf my dims are 17-18" high {could go either way a little bit more} 41" wide{also have room over the wheel wells if needed} depth as needed running off an saz 1500d i am looking for the best all around sound this will see all kinds of music at differing levels [daily driver, wife two kids} i'm not looking for every last .01 db but every once and awhile it will have to take a pounding would anyone be able to help me come up with a design for the ported ? any thoghts on the sealed, with those dims it will end up not very deep. is that a problem sound wise, with it being so slim and wide or should i make it more c…

Im driving a Dodge dakota extended cab and im going to be running 2 12" fi q's. I was wondering if it would be better to face the subs towards the front of the truck firing at the back of the seats, or firing towards the ceiling of the truck. Thanks in advance for any help!

I currently have a Q12 in a 1.35 sealed enclosure powered by a Cadence TXA-1000d. It sounds really good right now, but I cant help but think this sub can handle a couple hundo more watts on a constant basis. Am I right that it can handle more or is it just wishful thinkin?