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Fi Technical

Chat with Fi

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  1. Started by jgs07,

    ive had my bl 12"( just one) for about a week and its broken in but it doesnt get as loud as i want it too. so im thinkin i may have messed up on the box. can anyone take a look to c if i messed up on the box? dimension: 14.00" h 14.50" D 35.00" W Total inside volume BEFORE sub & port displacement = 3.15 cuft Port dimensions = 3" X 12.5" x 36 (L PORT) Port volume = 0.95 cuft Sub displacemnt = 0.15 0.95 + 0.15 = 1.1 cuft. 2.0 + 1.1 cuft = 3.1

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    • 19 replies
    • 1.4k views
  2. Started by enjost,

    Both setups will be run off of a Sundown Audio 2000D amp. I only have a space of 1.1 cuft per chamber to work with. I mostly listen to rap and want these subs to be able to lit the lows well.

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    • 9 replies
    • 928 views
  3. Started by racerx86,

    I have a 12'' fi Q and when i got my box built the guys put a separate wire on each voice coil. Its a dual 2 ohm sub. What is the final ohm i am getting once i connect it to my amp?

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    • 4 replies
    • 880 views
  4. Started by Joeys91,

    I have an FiQ 15 and it bottomed out on about 5 notes for less than 30 seconds due to faulty ground wire. I was just wondering if any permanent damage could have been done to the sub? It plays fine now after securing the ground wire, but i'm just waiting for something to pop.

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    • 2 replies
    • 741 views
  5. Started by appleyard,

    Scott / Anyone I had emailed Scott about this but I'll post here. Basically my questions is as below. I would like to seek help on my Q15 enclosure. I had builded a 3.65 cu.ft @ 34hz for the Q15. My specs and measurement as follows: Net Volume: 3.65 cubic feet Tuning Frequency: 34 Hz Port Width: 5.25 inches Port Area: 86.625 Square Inches Port Length: 47.5 inches External Dimensions: 34 wide x 18 tall x 22.75 deep Now, after installing and basically setting the amp crossover, subsonic filter and gains I found that the bass was muddy at times and lacked the lows. So I checked my amp setting even using scope just to make sure it does not clipped or distort. After listening…

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    • 22 replies
    • 2.6k views
  6. Started by 4X4AUTIGER,

    Alright first off sorry for so many topics about all the subs. Im just in the process of deciding and im all over the place lol. But i think i have narrowed it down to either 1 12" Bl with BP Power and Flatwind Coil or 1 15" Q with BP Power. Both will be ported. I will use the US Amps MD 1D (underrated 1200w @ 1 ohm). I drive a 2004 Ford F-150 and will be taking out one of my back seats so i have about 7cuft to work with. As of now i am leaning towards the Q because it is about $70 cheaper and because i also listen to not only rap but country alot... Just want to hear some thoughts and opinions. Thanks

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    • 16 replies
    • 1.4k views
  7. Started by kingtutus,

    I Emailed Fi about a month ago about the reconed and i haven't heard anything about it. If u could let me no what is up

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    • 5 replies
    • 757 views
  8. Started by wrldzmyn,

    My enclosure is 1.3 cu ft sealed, should I add some poly-fill to soften the boom a little if so how much should I use, 1lb, 2lb, somewhere inbetween ? Thank you.

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    • 3 replies
    • 740 views
  9. Started by 20chevy03,

    i currently have a crossfire vr 2000d and an optima yellow top with a kinetik hc600. running 0 ga from the battery then 2 ga from the kinetik to the amp. im currenty upgrading the "big 3" and am looking at an alternator around 200 amps or so. is that enough upgrade to feed that amp? the type of subs i was looking at are the FI BL15's which are 1000w rms and also the RE AUDIO sx15's which are rated the same. also if anyone would recommend an enclosure not only for daily but for comp. as well....probably somewhere along interchangeable ports

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    • 2 replies
    • 650 views
  10. Started by matteron,

    Does anyone know what the hyper pole option on the 2009 fi bl is?

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    • 2 replies
    • 703 views
  11. Started by kwschs,

    I was wondering if the specs are close enough between the two subs , that can I use my old box (really not old, 3 months) to house my new Fi 18 inch BTL Sub.

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    • 3 replies
    • 641 views
  12. Started by cmcveigh74,

    Hello, I currently have 2 15" q series dual 2 ohm with the b/p option .I'm running these subs in a sealed enclosure and would like to try them in a ported enclosure of 4 cft tuned to 30 hz .However, the FI Audio site doesn't tell you about port length only port area. I was hoping i might be able to receive some help here.

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    • 2 replies
    • 617 views
  13. Started by thumperxes,

    i was wondering how much a 12btl, 15btl, and a 15Q weighed thanks in advance

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    • 0 replies
    • 534 views
  14. I'm thinking about a having a box with the subs facing inside the car right behind the rear seats. I'm a bit worried though that the subs might hit the seats if it's not far enough. Any idea what would be a good distance? The subs are 12" Qs.

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    • 8 replies
    • 809 views
  15. Started by wof131s,

    The fi Q 15 has a sealed enclosure range from 2.0 to 2.6 cu.ft. At which enclosure size within this range would product the best results for a SQ setup? Thanks guys.

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    • 6 replies
    • 760 views
  16. Started by Julian,

    Whaaat happened? you guys just ruined my next setup :(:( will there be any 15 bls coming?

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    • 4 replies
    • 638 views
  17. Basically I'm stuck between two designs. The first one is 4.3cf with a 6" flared aeroport tuned to 35Hz. The second enclosure is 3.5cf tuned to 32Hz using a slot port, with 54" of square port. The power is 1000 watts rms at 1 ohm.

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    • 2 replies
    • 901 views
  18. Started by 4X4AUTIGER,

    1 12" Q with BP Power on a Rockford Fosgate 1500w amp wired at 1 ohm (so the sub will see 1500w) or 2 10" SSDs with flatwind coils and a US Amps MD 2D (so the subs will see around 750-900w a piece)... Both would be sealed setups. Thanks for the help

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    • 29 replies
    • 2.7k views
  19. Started by Julian,

    Would there be any noticeable difference between making one huge box or leaving both of them in separate boxes, advantages? disadvantages?

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    • 3 replies
    • 775 views
  20. Started by yo_mamas_pimp,

    Hey, I'm looking to build a new box strictly for street beating. I'm looking to tune it down to 30 hz. It's going in a Mazda 6 so I don't have excessive room to work with... External dimensions of the box will be 40" wide 27" deep and 17" high (double layer on top). Sub will be facing up as well as the port. I was thinking of putting the sub in the middle of the box, closer to the back of the car, and the port closer to the front of the car facing up. What would be better for music? 3", 4", 5" or 6" port width? Any ideas guys?

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    • 0 replies
    • 589 views
  21. Started by rk772,

    What is the Xmax with this option? I only see the 28mm on their website and I assume this is without this option.

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    • 3 replies
    • 746 views
  22. Started by wkollmeyer,

    I just ordered my 12" Fi Q (w/ bp option) and i could never be more excited for it to come. I'm upgrading from a JL Audio 13TW5, mainly for loudness issues. I have a couple questions however... 1. Will the Q be much louder than the JL? The JL is running 500watts @ 4 now off a Kenwood 9104D amp. The Q will run off the same amp for now, getting 900watts at 2ohms. I'm upgrading cause the JL is shallow, only 13mm excursion and barely moves any air... And I loveeeee SQ subs, but also want pretty loud... 2. Now before you bash on me and tell me I should have gotten a BL instead, I must state that i drive a scion tc, with an open hatch area, which is where the sub will be sittin…

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    • 1 reply
    • 584 views
  23. Started by kryptonitewhite,

    since I've been frequenting this forum more, I have noticed there is a significant number of issues with the Q line. I'm guessing just coincidence? Or is there a ryme or reason?

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    • 28 replies
    • 2.5k views
  24. Started by cody2126,

    I bought a ford supercrew yesterday..... about 3 weeks ago i bought 2 fi q 10s, i saw that it didnt require to much airspace for a ported. i went to a local box builder who makes awesome boxes and he laughed in my face when i told him ported is .6-1.2 well he said his not building and so im trying to get a plan b..... i found a site that has a 2.5 seat lift http://www.supercrewsound.com/commerce/pro...21&catId=52 and they make a sealed box that is .95 perside http://www.supercrewsound.com/commerce/pro...23&catId=58 i need some input if possible would this be good seat lift and the box sealed? r is there a way i can get this box and make it ported, that would be…

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    • 7 replies
    • 707 views
  25. Started by patdeezy33,

    hey guys need to know what kind of amp should i get for my fi btl 12 fully loaded at dual2... whats the max i can go with rms for this bad boy..its 2krms on the home page but it says that for every btl...can someone please help me...please

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      Reputation Points

    • 1 reply
    • 546 views

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