Fi Technical

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.

Will this enclosure work for two 15" btls

I have never had this problem untill I started using my FI sub... So hopfully someone can shed some light on the subject.. When hitting major bass notes on full tilt, the amp shuts off and shows CUR..Which is excessive current. What is this and how the hell do I fix it?

I am running a kicker 1500.1 and a dual 1 ohm 15'' bl from my factory nav/cd player in 05 escalade using a audio control epicenter plus and was told that my kicker amp does NOT have subsonic filtering for the sub PLEASE what do I do? Also my box is 4.00ft.^3, port area 56.00in.^2, and tuned at 30hz

ok I am upgrading from a 10 Q in the cab to a 15 Q in the bed with a bed cover and a boot (uncertain what size) i need some help with designing a box height 17.5 width 40 depth 59

As titled says. my max dimension is W33 H17 D26 which I calculate would be 6.52cu^3 after speaker displacement. I have 6.25 round ports and I know its kinna small for the 15Q but thats what I'm planning to use. When I use winisd (i know) with 6.5 cu^3 and 2 round 6.25" port tuned to 30hz I got a 23.57" long. I know my calculation is off because I have not deduct port displacement but hope someone can give input. I know the box is kinna small for the 2 15 but thats the only space I can spare. Most online port calculator wouldn't allow me to calculate 2 ports. Also the sub will be powered by 2 SAZ1500d. Thanks

I need some help with the dimensions of my slot port before I go ahead and make a disaster. I have a 15" SSD in a 3.8 cuft box. I'd like to tune it to 33Hz as per Fi's recommendation Using one of those online calculators I got the following dimensions 3"H x 6"W x 5.22 L Does that look right? How would that be affected if I wanted to make 2 ports? Any help would be appreciated

Hey guys, i am looking for a box design and was hoping one of ya could help me out. Its for 2 18" BL's powered off one rf t3000 going in a tahoe. I would like the dimensions no bigger than 28x48x22 if possible for daily driving tuned around 32hz subs up port back. I really dont trust myself designing one, but i guess thats one way to learn. Any help is appreciated.

I have a 2003 Gmc envoy, and dont know what i want to put into it, was thinking either 2 of the 15 or 18'' btls and either 2 of the RF t2000 bd or 2 of the t4000's any ideas what would be loud and still sound good?

I've been E-mailing Scott from Fi Audio back and forth but it usually takes a while for response and i realize hes bussy at the dB Drag World Finals. I desperately need these specifications for my Fi X 12s. LE in Mega Hertz- Z in Ohms- PE in watts- Ive been trying to get this info for weeks now so that i can finally build my box. I would really appreciate it if someone could help. Thanks, Ben

I got a 93 740il, i want to mount the subs on the rear deck and do a blow threw... dimensions of the trunk are - width 3', height 1.5', and there is a difference of 6.5" from top depth to bottom depth being the top is less, the port thru the rear seat can be a max height of 1.5' and is set at 1.1' without cutting any leather seat and width of 10", i have allot of room to play with the depth in the trunk well over 3' in the least deep spot, i tried using re's box calculator but it didn't help that much. thanks.

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

I'm sending in my 3 hp motors to be reconed on WED. I need a addy to send them to. Also I believe its $148 to have them reconed to 18's including shipping each. Correct? So I you could let me know where to send them, and if its ok to sen'd a m/o with the motor, or would it be bast to calll me and I'll pay over the phone with my Debit card?? Thanks, Joe. P Also The 3hp's have the tall top plate. would there be any benefit to miacine cooling channels in the top plate?? Could you do a fully poly cap on the 18" recone(like a havoc), I've seen 1 done, and a 10 with a poly and Fi logo, I'd love to have a full poly with the FI logo. Would look great..

I have an X12, 4ohm with BP power option, in a 1cu ft box after displacement, running on 350 watts. I need to know about what frequencies to set to LPF and subsonic adjustments on my Mono amp to best meet the specs of the sub. My subsonic will adust from OFF to 50Hz and the LPF adjusts from 40Hz to 220Hz Thanks Steve

i need 2 mt recone kits for my 15's i will also need the glue and i would like to have them dual 2 ohm plus i would like to have the fi dust cone can any one help me out with this i need to order these asap no response on web site

i got a 15 btl FL dual 1 ohm i need a good amp or amps no more then 350 dollars i have 1 sae 1200 on it now but my buddy is going to buy it so i can get something bigger any ideas???????

So, I'm waiting on my loaded dual 2-ohm SP4 15" driver. I've been paying around with designs using Torres box calculator and Winisd and I'm hoping I've got something usable. After playing with a mock-up box (reinforced poster-board + hot glue did the trick), I figured out that the biggest size I can fit comes up to kinda disappointing dimensions: Outer dimensions - 16" tall X 26.75" wide X 23" deep Inner port dimensions - 14.75" X 3", 27.5" long for an estimated tuning of 32hz after driver/Plexiglas (details later)/bracing displacement Net volume comes up to a whopping 3.42 cubic feet, with 44.25 square inches of port. This is with all 3/4" MDF as well as an extra l…

Im getting 1 18'' fi.btl fully loaded and my enclosure is going to be 6.3 cuft. (After all displacements) 3/4mdf tuned to 34hz. But as far as the port can you please tell me how long,tall,wide,etc. it should be for best hairtricks,loud bass at high notes,and the best low bass I can get (Since being tuned to 34hz.) without port noise. One more thing as far as the enclosure should I have the top and bottom of the enclosure double baffled or triple baffled or the whole enclosure double or triple baffled or what? Please help as much as you can I really appreciate it!!! Thanks guys

I will be running 2-18'' BTL's off of 2-MTX TE4001D's. I would like to know if this power setup is good for what I need to run my amps. Yollew top for the starter with a 200 amp alternator, 200 amp isolator, and 2 yellow tops in the rear for the sub amps. How would I wire the 2 yellow tops in the rear. + to + and - to - ? Ground each battery or only 1? Any help with this would be great and where and what battery,alternator,or isolator I should use? And what is the Big 3? Thanks Fi buddies...

do u guys have a list or catalogue? I hate asking for each individual part... I feel like im always hastling uguys here for recone parts either way need some dvc 1.4 and 0.7 alum coils, cones, spiders, tinsel(the thick stuff) and some dust caps do u prefer an email with a list?

Hi all, I have, what I hope is an easy question.... I have a pair of fully loaded BL 10's, So I am using WinISD to design a box, and I have some missing driver parameters: Pe: ????? ( I was assuming 1000watts ) Le: ????? Z: ????? Any help would be most appreciated! I currently have them housed in a 2.56 cu ft boxed tuned to 28.33 hz that I built for my previous cerwin vega v-max's, and the FI's sound really good in it, I just want to make sure I am not missing anything by not building a spec'd out box. Thanks!

can someone give my box measurements a once over and tell me if this is going to work,I have 7.49 cu.ft. and i am going to make a box for two fifteen's . I am going to use either the Q's or bl's , the box is going to be ported useing psp flare ports 4"x 17" four of them at this length. is this going to be enough room and are the amount of ports correct to tune this box to 28hz.. this is for a daily driver I listen mostly to rap and R&b. If this doesn't sound right could some one give me some direction, this is my first box build and i want to get it right. any help would be graetly appreciated thanks.

I have attached a photo. the leads where built in but need to get this puppy rebuilt. I had my installer rebuild all 4 of my 15" and one took the dust. He had told me he ordered off the FI site but can not find the options he told me my subs had. From what he told me Dual .7 coils 3 back stiff coils 2 yellow (one with woven leads. i belive there wher 4 leads per post each. blank dust caps. reg fi cone and foam surround. My subs are the dual stacked. I have attached a photo. Thanks for the help. 154.00 @ 29hz

i sent you an email regarding a technical aspect of the BTL. its regarding info on if there is a way to physically measure the gap on a btl motor to identify a SPL motor from a Daily gapped motor. i talked to Nick about this issue, but after being convinced that my btl was a daily gapped motor...i now am doubting it. i took the woofer out of the box today and the sound it makes is just so mechanical metallic sounding on music. this to me would suggest a spl gapped motor. this motor originally belonged to kenny pollock and he said the SPL and daily option were not available at the time when this motor was made. however, it does have all the other options on it (fully loade…

I am in need of two 15" recones and baskets with screws for my RE SX's at the moment, I will need two more at a later date. I need dual 1's with some slightly bigger tinsel leads, not the spl ones from the btls, if that is posible. I need the total price for all of that shipped to 47987. Thanks; Andrew