Fi Technical

How are you guys/gals fitting such long ports that are necessary for the Q12 into not very large boxes (1.8-2.5 cuf). I am designing a ported box for my single Q12. (2.2ish cuf @ 32ish hz) I am looking at a 6" port that is around 30 inches long. Is everyone using slot ports with multiple bends? I am not looking to compete or steal any secret designs. I am just looking for suggestions of what other people are doing to port the Q12. Thanks.

im just wondering if it would be possible to have softparts assembled to work on a fosgate power hx2? i can take exact measurements if needed, but from what i can see so far it has a 4" dual 2 ohm coil and an 8" spider like i said though i can take better measurements of everything if you guys can help me out on this one. btw i have tried contacting RF direct and they stopped making softparts for this particular sub seeing as though its over 3 years old.] TIA chris

Hey everyone Just a really simple question. The enclosure measurements for Fi speakers, are they measured before woofer displacement? Just need to clarify so I can build an optimal box with maximum air space.Thanks again!

i am wanting to get the most spl i can i order a BL 18 inch sub i have a rockford power 10001 mono amp i am having the jb fisher place design my box and i needed to know what the best cuft size they said that 8cuft would probably be the best but they said i might want to post on this forum to make sure thats best

for those do-it-yourself boxes, where do you get your wiring terminals and carpet? links are helpful, thanks in advance!

what would be a good box for 2 15" bl series subs.

hello i purchased an 18 inch btl fL in june and 1 tinsle lead has broken off... i resoldered it 2 times and now its too short.. i was wondering how i could go about doing this now. do you guys have a tinsle lead kit i could buy from you guys or something, or would i need to buy a recone kit... if so i would like to do the the cheapest option. please help thanks in advance

i got an Fi BTL 12 and i would like to know what the best way about mounting it in the whole would be.... what kinda screws...coarse thread, t-nuts?

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.

alright guys i have just ordered a 18" btl 18 dual 2 ohm and was wondering what is the possible wiring options that i can run it at ( what ohm ) thanx.

ok i want to get 15'' BL but i have a wall already made for my astro van and its tuned at 29hz will the BL work in that box. Thanks Danny

I have 2 fi Q 15's (w/ BP Power) in a sealed enclosure (seperate chambers) in a 2000 dodge dakota. Each chamber is 2.5 cu.ft after all displacment. I have my gain set on my amp (AQ2200D) to 4 V the same as the output of my head unit (Pioneer AVH-P5050DVD). My bass boss is all the way down, and so is my subsonic filter. The max vol. on this unit is 40 but i usually listen to my music with the vol. set to about 24-26. I just installed the system about three days ago so am still "breaking in the subs." On my way to work lastnight, i could smell whats seemed to be something buring. All my bass levels are set to either 0 or normal. Is there any reason for this to happen. I kno…

Hey guys, my enclosure is nearly finished. The specs are.... It's 3.97 cubes before displacement, so I am guessing around 3.5 after due to the sub displacement and the bracing. The box is tuned around 33hz. I've tryed it in my friends vehicle and it pounds pretty hard. Not 100% happy yet. I'm thinking that's just because it's not broken in yet. I heard it in a Ford Expedtion, but the sub will be going in a 96 Cutlass Supreme. Hopefully it will get much louder. I'm powering it with a JL 1000/1. But what I'm wanting to know is are those good specs for the box? That's about the biggest box I could fit in the trunk. Help would be appreciated!

What is the best option setup on a BTL for SPL use only and how much power will they take for Burps only?

Hey Scott, Les here i been trying to get in touch with you for a while now about the recone kits. Please get back to me ASAP i need them fast

The Fi.BL is being shipped now and i want to know how big 10 cubic ft. is.because the specs says 5-10 cubic ft. so i was going to get the enclosure built to 10 cubic ft. Is 10 cubic ft. good for that sub for max bass and Hitting Good Low low notes or should i stick to the 7-8 cubic ft. range?? P.S.:Space is not a option so you dont have to ask that?These are the options:dual 2ohm,cooling,flatwind coil,daily. How much inches wide & tall should the port be for this monster???? Thanks Guys:)

iam building a box will 41 INCHES BY 21 INCHES BY 22 " be fine for the sub and how many cubic feet would that be thanks for any help !!

so i hooked up my sub and amp. its a dual 1 ohm 12" q to a jl 1000.1 and it sounds like poo. i get a slapping sound even with the bass almost all the way down and the volume not even half way up. i havent tuned a jl amp before and theres all sorts of knobs and switches and what not, the box is sealed and around 1.2ft ^3 after the sub displacement. any help is greatly appreciated. thanks

I havnt heard back from you yet, did the recone kits get sent out cause i really need them by the weekend, and you told me they would be here in time. If you can send me the tracking info please. Thanks: Les Rutherford

ok so i have built alot of enclosures in my day but it has been about 4 years or so I have a mx15 in my truck right now with a 6" round port and its tuned to 32 hz sounds great i am super happy with it ok now onto the project I am helping a friend design a box for his car and a wedge style box is optimal to save the limited space that he has I will be using a BL12 and we will be making a ported box for it but the standard slot port wont work well for his application so we are opting towards a round port now here is where the issue arises I am unsure what size port i should be running single 6" or single 4" or possibly something else the enclosure we r shooting for is a f…

Looking at building sub box for BL 18 also considering possibly running 2 BL 18s and wondering minimum cu ft for both in the one box ported box-- is L=3' W=2' H= 1.5' i did the calculation right im sure but just wanna double check thatll be enough cu ft hey Thanks

I just popped my FI cherry () and bought a FI 15 with cooling, daily, universal, and a red dustcap what kind of enclosure am i looking for? i have a 1995 lumina, and now im seeing what kind of box i should go for. ( i have a very large trunk. ) i think my MTX JH55 is a 4 cube box. and i still have room for a little more, could someone post the exact and best enclosure for the FI BL 15 thank you in advanced -Julian

looking at an 18" Q in a 4cuft sealed box....would a us md-1d be too much for power, or should i look into the bl line?

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?

like the topic says im experimenting with my RE MT to see which coil amp combination will work best, so I would like to know thanx guys , and is there a longer version of the original dual 0.7(actual quad 1.4) coil ?? im in dire need of xmax to get louder... im hearing slapping when i get that sub moving alot( could i be bouncing off the dust cap? I dont think im bottoming out)... last time i ripped the coil right off of the spiders (quad stiff) that was with 4 ab 500.1 gain all the way down ( only got them to produce 75xx watts before sub exploded)or should I be using a different basket with 10" spiders? btw this is a 15" with 12 spoke basket