Fi Technical

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 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?

Does the copper option affect (lower?) the power handling? Since the flatwind increases power handling, decreases SQ, and the copper increases SQ a bit, the copper must have some kind of trade off, which I was thinking was a loss of power handling. Just wondering, Trevor

alrighty fellas i've decided to go with a 18'' btl-n2 and my truck is a 2000 gmc sierra ext cab long bed. i know the rear seat is gonna be gone i am planning on pushing the 18 with a soundstream dtr3400 and a ported box tuned around 32 hz so if anyone can reccomend enclosure specs i beleive my dimensions with the back seat out are 54'' long , 34'' tall, 24'' deep. if any body can help me out i greatly appreaciate it

If anyone could draw me up some designs for 1 15" bl send me a MSG and I'll give u measurements of my trunk. Website says 3-5 cubic foot.. So shuld I go 3 4 or 5? Wuld it fck with the sub if I went bigger or smaller then reccomended? I was lookin at sme pro boxes and this one is 3.87 Cft. Any1 reccomend pro boxes or would I be better off gettin one made?

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.

What size ports are you guys using for your Q's? I'm building a custom fiberglass enclosure for my standard cab and i need some info on what people saw was the best result. I will be using round ports. To sum it up, what size diameter,length port do i need to not have port noise and have excellent sound. I was going to build it exactly to 2.5 cuft with displacement and port. Should i make the enclosure smaller? what are peoples views on this-Thanks

i have a fully loaded btl 18 that I need to fit in the trunk what should I do!!???

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?

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.

Does anyone know a good box design for 2 12" BL seies subs. Nothing to massive has to fit in the trunk of a car.

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?

ok here it goes... and you know i have 2 15 fully loaded bl's dual 1's.... i have the + from one coil to the - on the other coil... on both subs... then + from one sub to the + on the other sub... then the same for the -... from there to the amp...... i should be at 1 ohms correct? or did i mess up should i have gotten dual 2's heres why i ask... im sitting some where around .8 ohms.... not 1. not 1.3.. but .8 thats with the resestance of my ohm, meter the resestance of my meter alone is .1...... so by my messed up math that should put me at 1.1... but hey maybe im wrong...... the reason i am so scared... ok here goes i shopped for months for subs and an amp.....…

I am looking for more SQ so i figured i would go sealed. But since i have a larger space, should i go ported? I want tight-punchy bass, I like feelin some of the high bass. My current box is huge and ported, so i think this would be the right change (sealed). Thanks

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

Well, After serching the forum, I have found what is included in a recone kit, but now its time for the questions. I was woundering what a 18" Dual 2 ohm BTL recone with flatwind coil will cost. Also I have never done a recone before but I beleive I do have the logic, and patience to do one, but would I be better of just sending in the motor and basket for a recone? Would it cost the same for a recone kit as it would to send in the sub (Shipping not taken into consideration here)

I'm in the process of buying a 15" BL within the next two weeks. i was going to pay someone to build me a box, but its going to cost +$200 and take well over 3 weeks for him to build it. so i decided to do some some research (and save some $$$$) and found two enclosure plans that fit the 15" what one should i build? the first design or this one Net volume: 3.5cuft Tuning: 33Hz Port Area: 52.5(15"Hx3.5"W) Dimensions:16.5H"X24D"x26.5W" *design stolen from ROE. Another question, Its a fully loaded 15" Bl powered by a rockford fosgate T1500-1BD the amp is rated at 1000W x 1 @ 2-Ohms RMS 1500W x 1 @ 1-Ohm RMS is it safe to wire the subwoofer at 1ohm for daily play? i know…

where can i find good box measures ((length width depth port)) for a single 12" btl. i dont have any experience in box building and i dont want to do guess work. can anybody have me with this.

Never mounted an amplifier right next to a woofer before, so it i tried it. Currently I have two 15" Fi Q's mounted invertedly behind the back seat of my car. There was just enough room to mount the p450.4 in between the magnets of the Q's, which positioned the amp perfectly at the reach through in the back seat. Doesn't seem to affect any perfomance aspect of the amplifier, so I guess all is good there, maybe i got lucky, or maybe i'm just sketchin. Next item of business though, What about mounting batteries too close to woofers? Does it matter? Talking kinetiks here too, not some cheap lead acid. I wouldn't see why this would be a problem, but I learn new things al…

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

I just ordered a 15'" bl. I order a dual 1 cause I wanted to run 1ohm. I forgot that with 1 ohm you can only got to 2 or .5. If I get another bl dual 1 could I wire it in a (series/parallel) and get 1 ohm. Thanks all

I currently have a wall in my car for 6 12s in a bandpass and I'm in the process of upgradeing my subs. My specs on the sealed chambers of my box are 3.69 cubes per side (three chambered box). Just wondering what subs would work best for a daily setup and to compete in bass boxing. Any advice would be helpfull. I'm getting new amps and waiting to get subs before i buy amps

do u have parts available to recone a treo ssx15? dvc 1ohm thanx, Peter

Hi yea i just got my 15" BL.... Thank you Fi Audio for a nice and fast delivery.... Now my question is, for anyone who owns one of these u kno how heavy that thing is so i wanna kno what kinda screws should i use or bolts, i dont wanna use basic screws i feel that this sub will just break them like toothpicks.... I cant wait to hear this bad boy in action Thanks

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…