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Fi Technical

Chat with Fi

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  1. Started by fis10,

    I have a 97' s10 single cab and i want to put a 10" or 12" Fi Bl series sub but dont have enough room behind the seat without eating my legs. Should i do a blow though where i put the box in the truck box?

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    • 15 replies
    • 6.4k views
  2. Started by FiBl15,

    HOw would 2 15 inch Bl's or Q's sound in a T-line? would it get really loud?

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    • 5 replies
    • 1k views
  3. Started by ncc74656,

    I own a 18" BL fully loaded on a kicker ZX1500.1. this has done me well as a DD setup for a year but now i want more. I am looking for more low end and more volume with out sacrificing much of my high end. my box is currently tuned at 44hz @ 5.4 cubic feet and i was planing to build a new box tuned to 35hz @ 7.99 cubic feet. i have the option to swap my 1500.1 with a 2500.1 plus a couple hundred and stick that behind the BL. would i blow it with this setup assuming im not an idiot with gains and the bass blow knob? my second thought was to sell my sub and box to buy a SP4 and stick that on a BC3500.1D crachendo amp. i read that this amp can run .5 stable where as my kic…

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    • 21 replies
    • 4.8k views
  4. Started by pat656,

    I have a Fi Bl 12" which is fully loaded and i need to build another box for it. I think my first one is not the correct dimensions for this speaker. Are there any good tutorials or even someone with a box design. I want to make one with 33Hz Thanks a lot Patrick

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    • 6 replies
    • 988 views
  5. Started by PHATBOi,

    Robin (iamamp3pimp) was in the process of building me a 2.8^3 @ 35Hz box for my AA Chaos 15D2 when I had to sell the sub due to financial issues. My question is would a Fi BL15D2 run off my AP15001D work in this enclosure? Sub would have cooling, flatwind, and daily options. Looking to get decent lows and numbers out of this box, though sound is more important than numbers to me. Had the CHaos 15 in a similar box before with good results, just bumped up tuning on this new box from 30 to 35Hz trying to get a little better score than the 143.7 at 40Hz I got with the first box. Here is a pic of the first box, new box will be designed the same but built out of raw birch. Th…

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    • 7 replies
    • 1.3k views
  6. Started by Timinsk,

    So I'm chosing to buy a FI BL18. Just two things I would like a bit of help on. First should I buy the FI BL18? I'm wanting a 18" sub, but I don't know how well this runs, I want to know from other peoples experience of how well this subwoofer is. Also i'm aiming for LSQ partly but don't want the rattling and horrible distorted bass sound. My friend is running a 7 year old sub (of course its old so makes up most of the problem) and it sounds pretty bad when he turns it up. I'm going to install this sub into my Chevy Tahoe in back behind the seat. Tell me if I should change anything but i'm deciding to do this. Dual 1 or Dual 2? (Be honest I don't know what the heck which …

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    • 43 replies
    • 3.7k views
  7. Started by delricoanderson,

    Recommended box size and tuning for a single fi btl 12 running off a crescendo 3kwp at 1 ohm for a 03 crown victoria.

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    • 9 replies
    • 2.3k views
  8. which one would sound louder (spl) because i like the idea of having an 18 but i only have room for about 5 cubes so after diplacement and all that it would be in the 4cu/ft range like i know it would have more cone area but in a box too small for it btl would have the cooling and himax coil options

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    • 4 replies
    • 1.9k views
  9. Started by wetapoo,

    im planning on making my own box for my btl. but im not really sure on the port at all. so here is my question im planning on making a box with about 4.5 ft3 of air 35.25L x 18W x 17H how big should i make the port if i want to tune it to 32hz? like the outside length and width, and the internal length of the port thanks if you have any suggestions ill gladly take them this might of been posted before but the search hasn't worked for a couple days now

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    • 1 reply
    • 714 views
  10. Hi, is it possible to convert a btl from 15 inch to 12? And what would be the price? More than a new 12 Q? I'm from germany so it's not possible to send this thing in.... Thanks Patrick

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    • 5 replies
    • 821 views
  11. Started by optical,

    how does this look. the sub will be in the trunk firing into the cabin with the port as well I'm also debating between the sundown 2500d and the audeque 3500 to run a 15" Fi btl at 1 ohm my electrical consists of at the moment optima red top up front optima yellow top in the rear, big 3, 0 gauge through out

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    • 4 replies
    • 3.1k views
  12. Started by mklett33,

    Just drew this up on sketch up, 5 cubic feet tuned to 32 Hz with port dimensions 5 Wide x 16 High x 34 Long... Wondering what you guys think!

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    • 4 replies
    • 2.9k views
  13. Started by Deckam88,

    Ordered a fi btl 15" fully loaded have a hifonics brz2400.1d I know not the greatest of amps but too much or too little for that sub I know everyone saying the can take more than 2000rms but how much?

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    • 11 replies
    • 2.3k views
    • 1 follower
  14. Started by adennis41,

    hello i have a fi btl 18 triple stack im looking to put in the back of a ranger is there anyone who could help design a box i have the top dimension to be 12 and bottom dimention to be 21 and the width no longer than 48 and heigh how ever long it needs to be id like i tuned to be loud as possible lol please pm if you can help

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    • 3 replies
    • 975 views
  15. Started by Frostedflakejake,

    So, i hate to be one of those bums that asks for help on designing a box. (help?? who am i kidding, i need full assistance) I have a Fi BTL 18 just sitting here teasing me while i earn my money for a refurbished SAZ 3000d. i thought as i was waiting, i might as well build the box. Space should not be an issue, i want this box to built for performance. It will be used for daily use. So my question is, what would you do? From my understandings, tuning at 32hz seems to be the mostly desired tuning frequency. Alternator and batteries are all taken care of, just down to the box. SO! if space was not an issue (cause its not! =] ), what would your box design be for a Fi BTL 18 w…

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    • 5 replies
    • 1.1k views
  16. Started by Juice+,

    Ok, so i have figured out what i am going to get. 1 fi btl 18 and ma audio HK4000D with pioneer premier DEH-P980BT deck. I need some help building a box, just need a very simple one I have a dodge charger and the dimensions we have to work with are 31w x 14 1/3h x 30depth and MDF 1inch since the height is only 14 1/3 i am going to have to slant it, can someone help me with a drawing or something, like where the top panel needs to slant in order to have enought room to fit the sub please tell me what you think and if you have any advice please tell me. Thanks, Madison

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    • 2 replies
    • 1.2k views
  17. all hooked up to a good electrical system should i run the amp at full tilt or dial back just wonderin if the sub will take it for a daily beating and last

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    • 6 replies
    • 980 views
  18. Started by sand master5,

    i need help finding some screws that wont brake when the bass hits from my btl im getting tiered of putting new ones in what are some good screws thatll keep these beast down

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    • 10 replies
    • 1.9k views
  19. Started by kevinsert,

    hello im from turkey..there is no fi sellers in europe i wanna make order via net and got some questions.. whats the weight of fi btl s aprox? which amp do u suggest for this monster?i only know 3 for this baby first one kicker zx2500.1 second ground zero 1.3000 and last one hertz hd1k and u can suggest good ones if u know something kick ass for this btl..

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    • 2 replies
    • 885 views
  20. Started by Woodlawn Cabinetry,

    What are they since there not posted on your website? Actually, none of the parameters for any of the BTL's are posted on your website?

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    • 28 replies
    • 7.9k views
  21. Started by Shankums,

    I am about to buy a FI btl and i was wondering if someone could give me good measurements of a enclosure with 10 cubes of space and is tuned to 32 Hz(s). If you need any more details please replay

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      Reputation Points

    • 6 replies
    • 3.5k views
  22. Started by mikesbassrace,

    right now i have a fi ssd on an aq1200d but i want to get a btl and maybe score the free cooling option before july 29 but i haven't been able to sell my aq1200d so i'm thinking bout keeping it and just buying another one and strapping them together but i will only be able to run it at 2 ohms so what would be better 2 aq1200d's @ 2 ohms or 1 aq2200 @ 1 ohm ? and how would i wire the 2 aq1200d's? this is my first post so sorry if it's messed up at all lol

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    • 7 replies
    • 2.1k views
  23. Started by grambo623,

    hi i have a 2nd gen btl i have a 5cubic foot box tuned a 33 hz i want to tune my amp but i dont no how to figure out how many volts each ch can take can anyone help thanks im runnning a hifonics brutus brz2400.1

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      Reputation Points

    • 8 replies
    • 1.2k views
    • 1 follower
  24. Started by Fi BTL,

    Ok i need some help on picking out the amp for my Fi BTL fully loaded i have to amp choices tell me wich one you think is better or if neither of them ar good Amp 1. XT4000DE V2 1,500 watt RMS (4000w peak) mono car amplifier Class "D" fully digital power supply 4000 watts peak output 1,500w x 1 RMS @ 1 ohms 800w x 1 RMS @ 2 ohms 500w x 1 RMS @ 4 ohms Bridgeable Efficiency: 86 % @ 4 Ohms or 84 % @ 2 Ohms or 76 % @ 1 ohm Fully adjustable butterworth low pass crossover filter Low Pass Crossover Filter - Adjustable 40 - 250 HZ @ 24 dB per octave Adjustable Bass Equalizer: 30 dB Bass Boost @ 45 HZ Subsonic Filter: 15-…

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    • 13 replies
    • 1.4k views
  25. Started by bdawg8527,

    ok, gonna be fun fitting this in my grand am. removed the double fold backseat. and plan on put a box running all the way from the trunk to behind the driver seat here are some plans for the box its about 9-10 cubic ft right now. questions? shape dosent matter dose it? do u think ill need some more support? how big should i make the port?

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      Reputation Points

    • 2 replies
    • 775 views

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