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Fi Technical

Chat with Fi

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  1. Started by 87regal,

    How does this design look? aprox 4cubic ft

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    • 6 replies
    • 814 views
  2. Started by fis10,

    Im getting a Fi SSD 15". I need to know what options to get and what i should get for an amp. Its GOING TO BE A DAILY SUB THAT WILL BEAT TO ITS MAX EVERY DAY. I want to go with the hifonics brand amp and wonder which is right. I myself think it'll take 1,500 rms no prob. These are the amps im considering... I want to get a 4.0 cu ft box tuned to 32 hz HIFONICS TXI1508D ---------1,500 rms HIFONICS-BXI1608D ---------1,600 rms HIFONICS BXI1208D----------1,200 rms All are 1ohm stable Im going with hifonics cause they are affordable but open to others. i only have like 400 for an amp.

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    • 18 replies
    • 1.6k views
  3. Started by FiBl15,

    how much would a recone for my 18 to a ten cost me? D2 no options

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    • 3 replies
    • 708 views
  4. Started by t-rust,

    im about to switch to port tubes instead of slot ports and i was wondering if i have 2 18" fi q's how many 6" diameter ports would i need. i have the box set up into two chambers at 7.1 cubes each. i was wanting to tune the box around 31-33 hz. i didn't know if i should use 2 ports per chamber or just one and what the exact lengthe should be.....ive used most calculators and they are telling me with 1 6" port in a 7.1 cube box the length should only have to be 6 inches, which doesnt seem right b/c i was thinkin more like 15-16 inches. shoot me some info thanks

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    • 0 replies
    • 637 views
  5. 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
    • 825 views
  6. Started by Jacob86,

    I have the basics for this box already, but I need to know if I need any bracing (if so, what kind) or any other tweaking. Also the sub is facing up, does it matter where I place the sub? (closest to the port opening or furthest away) Box is 24x30x15.5 Port Width is 3.9" Volume a little under 4^3 (after displacement) Tuned a bit above 30hz Thanks

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    • 7 replies
    • 1.1k views
  7. Started by wisemankw,

    The trunk of my car( 1999 Pontiac Bonneville SSEI) has opening that connects the trunk with the inside cabin of the car. I was wondering if facing the port towards this opening instead of towards the rear of the car would increase SPL or hurt it. Will the air be pushed into the cabin of the car or will it just be trapped in the trunk bouncing around on it self. I will prob end up leaving a gap of about 3" - 5" between the enclosure and the actual opening because the trunk gets narrow towards the back. Would I have to place the port directly in front of the opening or would having the port on one side of the box facing the front of the car matter? Below is a pic of …

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    • 0 replies
    • 512 views
  8. Started by goodguy8705,

    I don't compete and would like a SQ/LOUD SOUND QUALITY setup and am having the hardest time designing a box to use. Obviously Fi recommends a sealed enclosure and that's what I was going to do originally until I started playing around in WinISD. Now I'm completely unsure so I figured I'd ask you guys. How do you guys think a 12" Fi Q would sound in a 2.3 cu ft enclosure tuned to 24-25hz as opposed to a 1.3 cu ft sealed enclosure? I can't upload the WinISD output on my current connection but I will after midnight when I get home.

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    • 1 reply
    • 696 views
  9. Started by podaddy,

    Went with 10" bl, cooled, RF t10001bd at 1 ohm, 1cf ported box, (which is tuned a little high, might take apart and add an L to the port to lengthen it and drop tuning a bit). Just bought a 200amp alt. 1/0 wire all around, 4awg on alt. Was wondering if i should go for a cap, read that independent testing puts this amp closer to 1500watts at 1 ohm and want plenty of aux power, for starting the car and what not. Also should I stuff the box? Been a while since i had bass in the car, but then nit was just a thrown together mismatch system with no regard to resistance on the amp or any other important factor for that matter..wanna do it right this time. Any advice is appreciat…

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    • 7 replies
    • 918 views
  10. i am looking to get some ssq subs whether their 12 or 15's i dont know yet. i want to get the amp first then the subs. i cant stand when people do it the other way around. i was looking at the alphasonik pma 1200da. the amp is 1500 watts @4 ohms, 2000 watts @2 ohms and 3000 watts @1 ohm. ive heard people say these are good amps but i want to know if the wattage is true. or even if they are crap. i would run the the 2 dual 2 ohm subs parallel to one ohm then series em to make 2 ohms combined. at 1600 watts rms for the two i would be giving them 2000 watts with the amp at 2 ohms. is it smart to purchase this amp or should i search around. can some one help me? or give advi…

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    • 10 replies
    • 852 views
  11. Started by baggedbirds.com,

    I am running (2) of the 12SSD's in a ported box at right about 4 cu. ft. net and its tuned to about 32 hz. power is rated Zapco 1000W if I can get another cu. ft. What can i expect in the characteristic of the box? More efficent? more boomy? I do not want to make it sloppy, it's already ported which is a trade off for me to begin with. Or I might consider the max sized sealed box. How would you compair that to my existing ported box? thanks

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    • 4 replies
    • 880 views
  12. Started by BigPun1982,

    Here are my details: 2007 Chrysler 300C (Huge Trunk) Fi Q15 (With BP option) Cadence iA7 (1000 wrms @ 12.8?, 1200wrms@ 14.4) Big 3 Wiring Upgrade Listen to primarily Rap/Hip Hop & R&B Q#1- How far below the tuning frequency of a ported enclosure can you listen to a sub without causing damage?? Q#2- I love very deep, low bass! I was planning on a box 3.5-4 cf ported, tuned to 28hz. Is setup going to please my needs?? Q#3- Should I have went with the BP option with my power available?? It is free right now, so I figured it couldnt hurt.... right? I cannot wait to hear this setup!! Anyone posting 140db plus numbers on a single Q in a trunk?? Thanks for your help!!

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    • 8 replies
    • 939 views
  13. Started by whoze2blame,

    Hifonics TXi1508D- Titan Series 1500 Watt Mono Amplifier pushing an 18 fi bl

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    • 2 replies
    • 663 views
  14. Started by matteron,

    would anyone recommend running 2 hifonics brutus 1606d mono class amps to a 15" fi btl sub at 2ohms and connecting each voice coil separately if no. why not?

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    • 10 replies
    • 1.3k views
  15. Started by ADK,

    Im soon to be getting 1 15" ssd but i just have a few questions on what i should do to elctrical to make it sound the best it could without spending alot of money at all (under 150$). it will probably be going in a ported box about 3.1 after all displacements at 32-33hz. Now my car is a 1995 saturn sl2. stock alternator and wiring. battery is over a year old. would just replacing all wiring in my car to 0 guage do the trick or would i have to go alot further. 0 guage on big 3 then on power and ground also. I would also like to know if my US amps XT2000D would be good to power it. thanks.

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    • 2 replies
    • 623 views
  16. Started by ADK,

    I really need a ported enclosure design for a 15" FI ssd. since it is going into a pretty small trunk the sub will have to face upwards. other than that i have no clue on to which way to face the port, what size the box should be .....................if it helps my trunk is only about 15" tall, so my box really cant exceed like 14" tall, wheel well to wheel well cant exceed 30" and same for the depth. I would greatly appreciate a nice design for it.

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    • 3 replies
    • 675 views
  17. Started by ADK,

    I was planning on getting a 15" ssd for my 95 saturn sl2....the problm is my trunk isnt the biggest. I have enough room to make it the recommended 3-4 cubic foot box but i would have to face the sub towards the top of my trunk. If i did this would it still sound as good as if it was facing the back of the trunk, and where would I have my port facing. Can anyone possibly make me a box design that would fit in my trunk for the 15" SSD. the trunk is about 15" tall, wheel well to wheel well is about 35" and back to front im not to sure. I would greatl appreciate some help on this. I was also planning on running my Us amps xt2000D on it.

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    • 11 replies
    • 898 views
  18. Started by livinloud_zk,

    i need a btl fully loaded d2 18 recone (w/ old style motor) if anyone can help plz let me know

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    • 5 replies
    • 924 views
  19. Started by xprime4,

    Hello , Fi community I got my fi Q 18inch a month ago. I had some time to play with it.... hooked on a bxi2006d @1ohm Right now, it's in a 6.5 net enclosure tuned to 30hz with three 4x15 inch aeros. It hit the 35-40hz freq nicely, but i'm sure i can get more out of it. This summer, i'll be might be working on a way to use my wheel pit and get another 2ft/cu maybe. How will the increase enclosure volume help the Q, i mean in loudness and sq. I'm thinking i might get more prononced 30-40hz range, is that accurated? how much louder? is it worth the trouble fiberglassing the wheel pit??? Also, the 55-80hz range ain't loud at all, is it normal? i mean my old alpine type r we…

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    • 23 replies
    • 2k views
  20. Started by clarkw,

    i'm debating on weather i should run my pcx2400 (800rms x 2 @ 2ohm) To 2 FI Q 10" dual 1ohm subs, in a prefabbed under seat downfire box, sealed .55cubes ea. (subthump.com) http://www.subthump.com/chd.htm OR build a custom box and remove part of the backseat ported 15 or 18 FI BL Dual 2ohm with the PPI pcx2400 1600w RMS x 1 @ 4ohms. in a box built to spec. problem with the big ported single sub is i'd be losing half the backseat, and would be visible by just looking in the window. I'm open to different sub/box combos using the ppi amp. console? blow through? behind the seat? 800x2 @ 2 or 1600x1 @ 1

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    • 11 replies
    • 1.5k views
  21. Started by Smallk07,

    hey everybody, ive had my 15" BL for a month now and its running off a Rockford P1000-1BD (1328 rms @ 1ohm) but ive noticed after playing a couple of songs its hot to the touch but not too hot,,my gains are only half way and the bass knob is only half way.... i was wondering if this is normal and is my sub taking on any damage by being hot....????

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    • 13 replies
    • 1.2k views
  22. Started by kirill007,

    Could somebody help me to design an enclosure for the Fi BL 18 inch. I'm not good with the programs. I would like to let the box tuned to around 32 - 30 hertz. I'm gonna power it with around 1800W RMS. If somebody tell me the volume of the box and the port lenght and also the port area.

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    • 5 replies
    • 977 views
  23. Started by hanauma,

    Ok so i got a 18" BL Fully loaded and i was wondering if 1600 watts is not enough if someone could tell me that would be nice thanks.

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    • 10 replies
    • 974 views
  24. Started by ackslaxrichard,

    Will 12-gauge speaker wires work with a Fi Q 15 D2? I hope so because I already have those wires installed with my current sub which is going to be replaced

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    • 3 replies
    • 665 views
  25. Started by ackslaxrichard,

    I am getting the 15" Q w/bp power but my amp is a profile ap2000 and only puts out 960 rms bridged at 4 ohms. How can I hook up another amp so that I have about 1500 rms going to the sub and also some new 6x8's that I will be putting in?

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    • 20 replies
    • 1.7k views

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