Fi Technical

what are the mounting depths and displacements of btl's when you get the extra magnet? i tried the search but nothing comes up. also, it would be nice to have it all in one place for future reference. *edit*..... i just read that you guys are releasing a new btl. in any case what are the mounting depths of both new and old?

do anyone know what the prices will be to recone an ssd 12 2dvc Flatwind Coil?

I recently upgraded to 2 BTL 15s from a 2 Qs. In a nutshell im having the same problems that i was having with the Qs, Overexcursion. I am running a MTX TA81001 to each sub, only 1500 watts. The total volume of the box after displacements is 8.5 cubes, port is around 100sq inches and is tuned to 32hz. SSF is set at 30hz, HPF is set at 150hz, Bass boost is set at 0, and volt meter reads 38 volts which should make the amp put out 1500 watts. I went to my local shop (Pure Pressure Audio) where everyone who works there runs FI. They said i need 6 or more cubes for each speaker, and my box is causing them to move as much as they are. I built the box to FIs specs and it doesnt…

Can someone tell me why about 1/4 of the spider would be torn and a lil crispy and the rest be fine? the coil looks fine too btw...powered by a KX1200.1 in a 2.6 internal sealed enclosure...it smells AND feels as if it were on fire...the gains were fine and everything, i wasnt even playing full tilt when all the sudden...silence, no pop or any sound, just no bass and the smell

I'm looking for the exact dimensions of the MT gap or the exact coil dimensions to see what other coils will work with it. If Scott or Nick see this i'd appreciate some info. If anyone has the MT coil sitting around and has access to a dial caliper or something to measure precisely I would really appreciate the help. Or if anyone knows the gap dimensions off the top of their head lol...

I have read a little about recommendations for size of sealed enclosures for the Q. Does anyone have some examples that they have built or used? I am not really sure how to figure out the cubes either. I know that sounds stupid, but I left math back in college. One last thing, what does "tuning to x-hz," mean? Thanks, flame all you want, just a new-B here

Well,I just ordered a Q15 dual 1 ohm sub for my car. I had a 12w6v2 in a jl spec sealed box but after hearing the Q10 in a sealed boxed that I bought for my wife's car (hers goes lower and sounds better than my 12" ,just not as loud)I decided to go Fi also. I have a 06 Jetta and I wanted to run a sealed enclosure.I have lots of trunk space. I know that the spec sheet says 2-2.6 ft3 but is there anyone running larger and how does it sound. I want to focus on sq and very deep lows.

This is my current box plans for the 1 18"BTL and 1 Saz-3000d I have. I plan on putting all these into a 03 Tiburon(hatch) and competing in spl. Really my only question is would a bigger box better/ is 5.27 cubic feet enough. Thanks box: (outer dimensions) heighth = 16.5 width = 36 depth = 21.5 port: (inner dimensions) heighth = 5 width = 7 length = 10 this port will tune the box to about 34.67 hz which is what i personally like to tune mine to. after port displacement...this will give you about 5.27 cubes of air. so you have room to brace it and not go below the recommended volume. this is also assuming that you're using 3/4 MDF. competition port: (inner dimensions) he…

Ok, so I was wondering. A 12 in it's largest recommended enclosure, or a 15 in its smallest recommended enclosure, which has the more potential to get louder? Playing around with ideas here. Thanks, ~Trevor

I'm building a 2.5 cu. ft.box for a BL 12 right now and I'm aware of the recommended port area but I was wondering what the downside to more area(42 inches) would be. Thanks.

I just got a 12 Q D2 with BP power hooked up with a JL 500/1. in a sealed 1.5(20*13*15.5) after sub displacement. is the amp to little for the sub? i set the amp to JL specs. and then i get clipping. i've used the same amp on others subs and get better sound and more power out of it. but with ported boxes using the same JL specs. how should i set it with a sealed box?

Ive got 2 BTL 15s and i wanted to make sure my calculations were correct before i started building. The total room i have to work with is h=23 w=24 l=39inches. Total internal volume is 10.5 cubes, and after all displacements i have 8.65 cubes. the port dimensions are h=22.5 w=4.5 l=18.4 which should make the box tuned to 33hz. can someone check this for me to make sure i didnt make any errors. Thanks Keith

Is it ok to run 3 subs off 1 amp without any major worries. I was thinkin 3 15" BL's off 1 RF4000.1. What do you think? Or maybe I should just shut up and run 3 SAE-1000D's.

I have read from many 04/05 XXX users that the tinsel sometimes break. My friends 12" just broke last week and we're trying to get some tinsel wires and there so hard to find. Forum members have told me to talk to scott or nick at Fi car audio to get some. Seems they might be busy since i didn't get a reply. Hoping they see this and respond back. thanks

I know to pilot my screws, but the problem is i'm using 1 front baffle for the sub, and maybe i'm wrong, but i just dont see 3/4" screw holding that for that long. am i wrong or am i supposed to use a different kind of screw?

i need to order a recone and basket for my MT motor..and ive heard statements on both sides of my question. does the BTL coil fit in the MT gap?

Got my bl today, went to bolt it into the box and noticed that the holes in the gasket don't go all the way through. I can see the holes on the bottom then the lip that comes off of the surround goes over the whole and blocks it. Do i drill through it?

I've seen where eveyone says speaker terminals suck, so whats the best one to use? And if its bolt terminal, do i just put a hole in the mdf and put a 3/8" bolt through it? How do i hook the wires to it on each side? I realize this is probably about as noob as it gets too, but i mentioned big 3 to one of the big 'audio' shops around here, and they looked at me like i was an idiot for thinking there was such a thing (i'm saying this just to show you i have noone to learn from in the local area haha). Thanks

I was wondering if the BP option changes anything on the T/S parameters of any woofer it gets done to? Does it lower efficiency? And if it does, what is the point? Does a subs BL drop by having the BP option?

Putting a brand spankin new 15" Q dual 2ohm in a 97 honda accord. This is for daily music kinda stuff, no comps, I just want it to be clean and wang on the lows. I was wondering if anyone has had experience with these trunks and knows what can fit in em. I am thinking that ported would sound best but am open to all suggestions. Also, if ported should I go with slot port, aero, other? If my measurements are correct, Max we're looking at 17 tall x 32 wide x 22 deep. Will a ported 3.0 ft^3 sound as nice as 4.0 ft^3? Any help would be great

i am planning to go with the following sealed box for a Fi Q 15".. would there be any issues with the sub being mounted so close to the edges? theres only 0.1875in. of clearance on the top and bottom of the sub/edge

Well i got a decent amount of money back on my taxes so its time for a new system. I have decided on a bl 15 dual 1 ohm and I just want to make sure i got this right. My enclosure is 3.5 cuft after all displacement tuned to 32hz using two 4" tube ports each 15" long. I also will be using a memphis 1500d (1500 watts at 2 ohms). Does all that sound good? Any advice on what options I should add to the sub when ordering? Thanks guys I appreciate it.

hey all im really sold on getting a bl 15 for my car. i was just wondering how much it will cost to get it shipped to montreal since it states on the fi site that shipping only free in the states. im also wondering if the flatwind coil is good to get if i plan to use the sub daily (will it give much better sound).

OK, I'm going to buy 1 18" BTL today and I need to know what options to go with. I want to compete in SPL but I do sometimes want to be able to listen to music. I'm running it with a SAZ-3000 and I don't ever plan on adding another Sub. (I could never fit another) Yup so what options should i get?? thanks

sorry to make another thread about it, but i can t get anybody to answer me about my mt motor i sent to have repaired..its been over a month! i got a email from scott about it being fixed , then i never heard a thing ...i have emailed fi , and scott many times and no replies......am i ever going to get my motor back????????? or am i going to just never get it back......???? i was going to buy 2 btl 18's from you after i got my mt motor back, but if this kind of customer service is what i have to look forward to , im not going to buy a thing ........please let me know something please...