Fi Technical

I am planning to purchase a BTL 15 when they are available, i would like to know what kinda applications this sub is gonna be adaptable to. I had a DD 9515G, but everytime i talk to them via e-mail or on the phone their customer service is severely lacking lately. So i sold it. I would like to run one of the BTL's in the DD's place daily in a T-line Enclosure, and then in a standard slot ported, or possibly kerf ported enclosure for when i wanna meter it. What kind of options are gonna be available, and what the specifics of them. I went the the website, and the options and just complete overview of the sub is obviously being revised for the new model. Options i reme…

Ok, I give up. I need some more direction in building a ported enclosure for my Q10. Right now, it has about .5ft^3 in a sealed enclosure and I really love the way it sounds, I would just like it a little louder (or alot haha.) But anyway, this is in an extended cab S10. I have to admit, its alittle underpowered with my Sundown sae-1000d because it wired at 2ohms. So it gets about 600rms. Any ideas? I would like to use tube for my ports if possible, not really a fan of slot ports, but i'm open to anything. Thanks, Mike B.

I am building a vented sub box for a 12in BTL thats Fully loaded.. it is going into a 2005 Honda Civic... right now I have the Height as 15inches, the width at 32inches and the depth at 13inches.. it comes out to 2.70 cubes I am tryin to figure out the Port size and length for the box to have it tuned to 32hz if anyone could help me I would greatly appreciate it.

I recently found out my Tinsel Leads were blown and i'm not sure how to fix it... Is this something i could fix on my own? Or will i need to send it in? If so how much will it cost? and where do i send it in too?

scott, been sending some email this past few days, did'nt get any reply is everything ok? pls. check your email...thank you

Hey all, Today I just got my 12" BTL and my Crunch GP3000D along with my custom box and I installed everything today and to be honest I am not impressed with this subwoofer at all. Like when the subwoofer hits, it sounds like it is bottoming out and I dont understand why. I use to have 2 12w6v2s to a JL 1000/1 and it was hitting WAY harder than my 12" BTL. I just met my friend who I sold my w6s to and he was running them to a Kenwood amp pushing 600rms to them and they were slamming compared to my BTL. I just am not impressed with the performance of the BTL at all. It cannot pick up anything high at all. I know it is a SPL sub, but I have read tons and tons of peoples rev…

I want to build a sealed box 25X15X17 for a Q15 is that big enough? Should I add any bracing, if so where Thanks Jacob

ok here's what i got...99 mustang rear seat delete wanna do a bl 15 d1 sub up port back in a 4.36cf box@33hz(that's internal)...i was told on here that fi's specs for cf are after speaker displacement...internal dimesions for box are 15x15x33.5...as for the port i got 4x15x25.66....does this sound cool...btw that 4.36cf is before port/bracing deplacement..as i stated earlier i was told that the fi specs for speaker displacement are already included....if someone can confirm that this is all good i would greatly appreciate it

What's the smallest you think i could go with a BL 18. I'd probably wire down to 2 ohms and get about 1100 out of my amp if i went sealed. I've got some extra wood from the real box, and i thought that i could make a box to take up only one seat for when i want to take an extra person, but still have some sound. I don't see a ported working because i couldnt make the port big enough i dont think, maybe i'm wrong. Anybody ever sealed a BL 18? I doubt too many have, but what would it sound like? (also, when i say small, max dimensions that id like to use are: 23H*17-18D*22W, which is 4.4 cu ft after wood displacement.) PS: regular box is 6 cu ft tuned to 34 hz, so please d…

hello, If anyone can tell me the port length for a 15inch fully loaded BTL that would be great. they took down the specs for the new woofer i guess, making it unable for me to read it. So if anyone can tell me all the port information for a 15inch btl i would really appreciate it. Thank you

Hi! I

i need a custom enclosure if anyone in here stays in cali n builds them hit me up i need an enclosure(ported) for my 2 FI SSD's

hey all. i want as big of a sub as possible but the only problem is that i will have only 16.5" of height in my trunk. thats means if i get a bl 15 my sub will be very close to touching the wood (height wise) in my subwoofer encloser. is it bad if the sub doesnt have a lot of clearance height wise in its encloser or does that only apply sideways in corelation to the port. just wondering if i should be ok soundwise with a tight box or will i sacrifise sound quality by doing this and just stick to getting a bl12. thx -phil

ok so what im gunna do is put a single 12" BL into my f150....i have a bench seat in the rear so im gunna fold the short side, which is behind the passenger, and put the sub box there....i have approximately, 18" wide 16" deep and about 20" in height...the height is flexible tho....i have a kicker zx1500.1....can any one please help me design a box? thank you

what's the sub displacement of a btl 18 tripple stock magnet? thank you

Hey i Tested the coils it came back one was .7 normal and one read 0 no idea why its just one but thats what happen so i was wondering shipping from 77632 to yall and back total cost if its a recone that is! Thanks, Teddy

i don't really want to take up the whole back window up i did some measurements and i can do a box that's 52.5W x 24.5H x 16.5 deep. externally that's 12.28 Cuft 10.18 cuft internal. After displacements of the 2 18's and 3 6 inch aeroports that are 12 inches long each it gives it an internal volume of 9.083. will this be enough for 2 18's for bass racing the 140-149.9 class? i am ordering 4 Sundown 1500's when jacob gets the new ones in. i plan on strapping at 1.4 so each amp will see .7. i also will have 6 optima group 31 yellow top batteries.

Ok so my Q stopped working an i tested the coils an the left one reads 0 and the right one reads .8 i think it wierd that just one coil would burn or be messed up. Anyone have any input on this.? Thanks, Teddy

i would greatly appreciate it if someone can tell me where i can get a book/manual on how to build enclosures all types

So heres the deal: I bought 2 12 X's A few months back during the clearance, and I put them in a horrible prefab ported box with circle ports and after about 2 days, a blown out side panel. Supposed to get 1.6-2.2 cuft in a ported box, I think theyre getting 1 each. It sounds decent I guess, but if I get it past about 1/3 volume, I get the worse port noise I've ever heard. I just got back from Home Depot, and I bought a 4x8 sheet of 3/4 MDF. I'm planning on starting the construction of my new box tomorrow. I've decided on sealed, because to be honest, theres about 0 chance of me successfully building a ported box. Here are the stats for the X series 12's: Sealed box: .9-…

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

Does anyone own a 94-97 Honda Accord Sedan? And if so, do you have a 15'' BTL Sub? If by any chance you do, could you tell me how you made the box for your sub? 5 cf is a lot of space, and my trunk is big but I dont know if its possible or not while still keeping the back 2 seats in... Thanks, -Curt

I just ordered a 15 bl today and im still pondering on what size box to get..do i go for a 3.0 cub box or a 4.0 cub box any help would be greatly appreciated

so i hooked up my sub and amp. its a dual 1 ohm 12" q to a jl 1000.1 and it sounds like poo. i get a slapping sound even with the bass almost all the way down and the volume not even half way up. i havent tuned a jl amp before and theres all sorts of knobs and switches and what not, the box is sealed and around 1.2ft ^3 after the sub displacement. any help is greatly appreciated. thanks

Does anyone have a contact number for them?