Fi Technical

i have 2 15"se/xxx's i wanted to know how much power should i throw at them also what do you guys think for a box. im looking for a loud DD. do you think of 9 cubes before sub and port displacment and 135" of port tuned to 35hz's

Hi, I have had my BTL 12 for several weeks now. Its fully loaded and only receiving around 1000 watts rms (PDX 1.1000). The enclosure is 3 cubes after displacement at 34 hz. On certain notes, i hear a popping noise. The notes are almost always higher notes. The spiders and leads look fine, but i dont have much experience with them. Is it possible that i am reaching the mechanical limits of the sub in this box at less than half power? Amp is not clipping to my knowledge. Voltage is stable when the noise sounds (less than half gain, no bass boost). Oh, and the popping is only heard at half volume plus. The sound sounds like its coming from under the dust cap. Any i…

I'm looking at buying this used fi btl n2 and i'd love to know the specs if anybody has them or has a link to them,

Right now i have my 2 Q 12's in a 5^ft @ 33hz with 71sqin of port box. I was wondering if I built another box same size and tuning(might tune to 32hz) but with 80sqin of port would i notice any difference in sound?

I recently bought a 15' Bl and had a enclosure in mind. The enclosures dimensions would fit inside my car, so I went ahead and bought the 15' Bl with the cooling option. It arrived a few days ago and I was super siked. Then I realized how would I get this box into my 99' Grand Am GT. The box will not fit. (This one http://www.bestbuy.com/site/olspage.jsp?sk...=1218009774927). Now I'm in a pickle. I have found another box that is ported,that i think will fit in my car. It is on the small side as far as cubic feet wise though. link to it --->http://www.bestbuy.com/site/olspage.jsp?skuId=9026797&st=15+in&lp=4&type=product&cp=1&id=1218009790168 Will th…

hey guys, if i tuned a box to 26.5 hz would it hurt the sub? ik fi recommends 28 but i like it a little lower than it is now. so im gonna build a new box, and tune it to 26.5 if u think it would b ok. ne help would b great. thanx.

Is it that hard? How long would it usually take?

Hello everyone, Im looking for some input on new woofers. Looking to do two 12's in 6.5 cubes, ported to 29 hrz.(havnt designed yet) I am stuck between FI Q's and BL's I understand that its not entirely fair to compare specs of subs as there are many variables involved, but how does the BL's motor compare to the Q's? The Q having 28mm of Xmax and the BL having 19mm xmax. Is the BL's motor just much more powerfull? What are the real world diffrences and which one is better for my application? Amp is: 4,000 watts rms(1ohm). they will be wired down to one ohm

I see that the mounting depth on the 15" BTL is 8.25"; so Im assuming the mounting depth with the 3rd mag would be a inch more @ 9.25"? Would 1/2" between the back of the woofer and the enclosure be enough to let the sub vent? Cuz 1/2" is all I can do

This is my first time to mount a sub (have to learn sometime, eh?), so bare with me. The screw holes, when i look through them, i see the foam/rubber that extends from the surround. If i stretch the circle with the screw holes, i can barely get past the outer rim of the basket; making it impossible to screw the opposite side in. SO my question is, how exactly do i screw (or bolt, undecided) the thing in? I know to pilot/predrill my holes, its just i dont know how to safely do it.

This is the box I came up with, but just by the numbers, I don't know what the response will be like and how smooth it will be. Box: 44"x18"x20" (outer dimensions) and 37.5"x16.5"x18.5" (inner dimensions using 3/4" mdf excluding port) Port: 4"X16.5" slot on left 18.5" long That should leave me with ~6.6cubes before displacement and a ~33hz tuning. Subs are running off of my US Amps MD2 at 1 ohm. ~1800w rms What do you think?

ok here is my question can i run 2 amps (mtx tc4001) on a Fi q 12? the amps are rms 600x1 at 2 ohms. i know that the FI's are dual 2 ohm. right now i dont have the cash to buy the amp i want(sundown). the other mtx amp should be here soon but until then can i only run one VC? is that safe? any answers would be nice? my friend has one of the FI Q 12 in his 06 Z71 and man it sounds great... i want that sound

3 weeks and no replys to email. i would realy like to get the kit. thx

Hey i use to have 2 (dual 2)12" kicker cvrs running off of a zx750.1 now i have 2 (dual 2)12" FI ssds running of a zx1500.1 and my cvrs are louder then my ssds, the ssds are in a 4 cube ported box tuned to 32hz. My electrical is a 200a EA alt, Yellowtop under the hood. Ive got 10guage speaker wire, 1/0 power/ground wire. When i try to set the gains using the gain setting tutorial i dont get any voltage reading from my dmm so i try and set it by ear and the subs just stop playing when the subs arent moving that much. Im not sure whats going on. Im almost positive i hooked the subs up to read a 2ohm load i remember goin gfrom the positive from amp to positive to sub to posi…

I have a Fi Q12 in 2.5 cubes tuned to 32Hz. I dont like the way the box was made so im gonna make a new one with left over MDF. I have max demensions of 38 wide, 14 height, and 14 depth. i still wanna tune it to 32Hz but in a smaller enclosure like 2.1-2.25 cubes. So any plans will help. Need 12-16 square inches of vent area per cubic foot of volume. also what difference would there be in a smaller box?

I have a BL 10" with DVC 2 ohm coils, I am wondering how hard it is to install the recone kit FI sells to recone it to DVC 1 ohm coils. I am asking because I am now considering ordering another BL 10", but I would need a DVC 1 ohm to get my amp down to 1 ohm . I know there are some out there that have ordered the kits from Fi, so guys, how hard was it for YOU to recone your sub with the kit??

Ok I have read many posts and I think its something I will need. The Q cant take 2000w daily I dont think. I want to run my Autotek mm2000.1. If I buy the dual 1 and run in at 2 ohms the Q will get 1500 daily. I dont really compete, just little local shows. I think that much daily I should probably get the BP option just to be safe. Does it take away from SQ with the changes that are made? Am I better off selling my amp and buying something smaller?

hey guys... i am trying to find out the T/S Parameters of the Copper Coil Option. i was looking at the Fi site and thought it was weird that the BL rating was so low when compared to so many other drivers. would a very low BL rating not be ideal for Porting? i was considering doing a PR or Porting the box, but i was told by the guys at AE Speakers that a low BL # leads him to believe that it is not a good candidate for porting or a PR. does anyone have decent experience in porting the copper coil SSD and what results have you had?

I am a noob set on getting 2 15" BTLs but I don't know if i should run them at 2 ohms or 1 ohm. The problem is that there are not many amps that support 2000 watts unless at 1 ohm. If there are any suggestions for an amp with adjustable subsonic filter, that can run @ 32hz+, for 2 15" 2000 watt rms subs, PLEASe let me know. Thanks

ok so i was thinking of either getting 1 or 2 fi q 12's or 1 or 2 fi q 15's because i want a little more sq, but i like listening to rap sometimes and i was wondering how low a q 12 can play

Hi. I Just bought a FiQ12 and am waiting for it to arive. But right now I have a Clarion cz702 hu with focal polyglass 165 vb front speakrs and focal polyglass 165 cvx back speakers and a alpine pdx-f4 amp running the speakers and one memphis mojo 12 and memphis amp in the back. Im replacing the mojo with the fi. When i turn the head unit all the way to max, the speakers clip. I have the amp turned all the way down and the amp in the headunit off. I have the system set to normal right now because i dont understand the 2 way and 3 way set ups options and what all the numbers mean. I dont know what all the corss over numbers are or what i should have running through my spea…

I have the Beta version of WinISD. I put in the parameters for the 15" Fi BTL from the website and no matter what I do it doesn't work right. I more than likely have one of the parameters wrong. Does anyone else have theres working and would be willing to post a picture or something so I can see what I did wrong?

Im getting ready to order the Fi 15 BL, i have a 1000/1 jl audio amp. Im not sure which is better dual 1 or dual 2 ohm? Is one better than the other, or does it not really matter?

Hey everyone...I need some help.... I have a 94 Camry wagon and I want to put a Box for 2 18" Btls....I included links to the pics of my car and the dimensions inside are: 37" wide 28" high 37" length (with rear seats up) -or- 69" length (with rear seats down) ... also I know nothin about building boxes so, where would I go to have the box(s) built???....ported Im sure, and what amp(s) should I get to power these daily monsters??? your help is greatly appreciated thnks Freddy http://s453.photobucket.com/albums/qq252/D...nt=PIC-0044.jpg http://s453.photobucket.com/albums/qq252/D...=PIC-0045-1.jpg http://s453.photobucket.com/albums/qq252/D...nt=PIC-0…