Fi Technical

i'm not sure what would be the best way to wire my new bl...if you guys could help that'd be great..it's going to be put to a jl 1000/1 thanks in advance..and if you have a diagram post that to..thanks

can someone give my box measurements a once over and tell me if this is going to work,I have 7.49 cu.ft. and i am going to make a box for two fifteen's . I am going to use either the Q's or bl's , the box is going to be ported useing psp flare ports 4"x 17" four of them at this length. is this going to be enough room and are the amount of ports correct to tune this box to 28hz.. this is for a daily driver I listen mostly to rap and R&b. If this doesn't sound right could some one give me some direction, this is my first box build and i want to get it right. any help would be graetly appreciated thanks.

i want to build a 4th order bp for 2 18 btl and im pretty unsure about how to calculate the port. the sealed chamber is 2* 3,3 cft and the ported one 1* 10 cft. how do i design the port? does 40 hz work well or is that too low? shall i make the port for 5 cft @ 40 hz and then double port area (because both woofers will play in one ported chamber)?

i would like to know the dimensions of what 5-10 cubic feet is...im not a math whiz sorry. i would like to know roughly how long and tall it needs to be to meet 5-10 cubic feet. thnx so much guys, mike

I recently just ordered me two 18" fi btl fully loaded and im selling my 18" q's to my buddy. What I need is a good box design for my btl's. My maximum measurements for the btl's box is 49"x20"x29". i currently have aero ports for my q's and im wanting to do a single chamber with a big slot port, subs up port back. And i also need a box design for my buddys setup, max measurements of 40"x26"x26", with the same idea as my box. so if there is anyone with ideas, let me know please. thanks

Im wanting to build a box for my two 15's because i want to get my system term lab'd at a local shop and right now i have a fiberglass box but i want to make another box all out of MDF. so if anyone can help id greatly appreciate it.

Which would be louder? (Daily) 1. (2) fully loaded BL15s with about 3.2ft3 and 50sq" of port "each" tuned to 33Hz..... with a Hifonics Collosus (3200rms x 1@2ohm) so that would be about 1600rms each. or 2. (1) Fully loaded BTL18 with about 7ft3 and 120sq" of port tuned to 33Hz......pushed off of a Hifonics Collosus also. Going in a 2dr Explorer Sport

I got two 15 inch BLs and I would just like to know how to tune the enclosure port to 33 hz? Is there some sort of program that could show me how?

So I guess this isn't really Fi specific but I've got this box modeled up in sketchup and I'm wondering if it would be beneficial to add an angled piece to each corner and to cut an angle into the inside turn of the port at the corner or if leaving it the way it is would be fine. I haven't ever heard a back to back comparison with two similar boxes, one with the angled corners and one without so any input would be great!

everyone has proclaimed the Fi as the sub to own im wondering if there are any build pics that you can release to the public i.e. ( showing the differance between Q/Bl/Btl/Btl^ loadded ) motors, spiders, coils, and how the back plates are put together etc etc etc i like the way they look just curious

ok so one night i was sitting around thinking up some new box ideas. i really want to have my sub facing forward into the cab of my car, and have the port be on top of the subwoofer. so i was doing some concepting and came up with this, Box idea. I just want to know if it will work. i forgot to put notes so.... notes: 1. double baffle front plate 2. round port edges 3. 2.8 ^3 feet of airspace after all displacement 4. 3/4" mdf or particle board used. its going to be firing forward with the trunk sealed from the cabin. thanks, Anton Miller

I have a 3.5 cube box in my truck. i was wondering your thoughts. what would be louder? i can only mount the 12s down fire but i can mount the 10 into the cab? ant thought? thanks subs ran of a saz1500 for now

need dimensions on a box for a 15 fi sp4. website says 3,5 cu ft but other people are saying go 4 cu ft. really would appricate it

I am getting some 15" btls. I was curious about how I should get it made. I know I want the p-chamber. I read that if you get the 3rd magnet with no cooling option, this is better for SPL. So, what happens if you get 3rd magnet with the cooling option. This is going to be a daily driver with, hopefully tons of SPL, but I don't want to kill the sub and replace it or fix it consistently. So, which option with these should I go with?

Im designing my box now for my BL 18 and wanted to check something i read in the BL sticky for enclosures. For the ports, you need 12-16 in3 for each 1 ft3 the box is? So this means that the port would have the same volume or bigger than the whole box? Heres my box idea before i read this post, It has a little over 1 ft3 ports due to the aero. http://feat.putfile.com/profilepics/main/6...75120100648.jpg I will post picks of the trunk and the denesions later to see if someone can help with a better design.

I have a 95 single cab Nissan pickup and want to put 1 10" SSD back there. I have buckets seats with about 10 1/2 - 11" of room between them don't have exact demensions and limited room behind the seats. If I have enough room I want a ported box but will use a sealed box due to the limited space. I also want to have a center console.

what is the difference between dual one or dual 2 ohm??? im looking to power up at btl 18 will 2 rockford 2500?

The 15 inch BL box recommendations are (BL 15 – Ported box we recommend using 2.8-4 cubic feet @ 28-37Hz. Again use 12-16 square inches of vent area per cubic foot of volume) Im not exactly sure what size and hz i should tune my box to. I have one 15 BL fully loaded ment for daily personal use. Any recommendations on what will give my the best bang for my buck?

Can Fi recone this sub, it has a Tc9 motor with 3 inch coils. A guy over on ROE is selling one, it is only the motor and 4 spoke basket.

Forum, I have a SUV and my setup is 2 BL 12's in a shared chamber ported enclosure tuned at 33hz. I was wondering would the subs sound better facing forward or to the rear of my SUV tailgate? The subs and port are on the same baffle. Right now i have them facing forward and it sounds really good but just wondering am i losing out on that chest pounding bass if they are facing the rear?

i sent my woofer in for a recone and spoke with nick via email briefly, but havent heard a response in a while. i need to get the sub back asap, im not sure how much to pay them for it with shipping to 85259. if anyone can contact them via phone, that would be fantastic as i would love to have the sub back by thursday or friday for a road trip. i know its 75 plus shipping, but im not sure how much the shipping is and if it can be back to me by then. he said it can be done within a day if need be. Thanks, anthony iocca he can reach me at 480-648-6785. my email is down right now.

Doing some box designs and wanted a little help on picking what hrtz to tune the box at. I read the post from Fi about tuning and it says anywhere beteween 30-37 hrtz. I will have around 8.5 cuft for each sub and wanted to hear some suggestions on tuning. The enclosure will have the ports facing twords the rear with the subs mounted on the top side of the enclosure. I listin to mostly rap music and want it to be loud as it can be. The subs will be pushed by 2 Alpine PDX 1000.1's for now, but down the road will be pushed by 2 PDX's on each 18 1 on each voice coil at 2ohms for a total of 2000 watts to each sub. Thanks, this site has helped me alot so far, the best sit…

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 know this will sound stupid but what is a dustcap? is it the cirlce on the center of the sub? the one with the fi sign?

ok heres the deal im wanting to buy two 18's for my truck and want to know if the btl n2s will fit. I have an 01 ford f150 supercab which is just an extended cab 4x4.What i'm wanting to do is build a wall basically take the whole back seat out and build the enclosure in the truck.I am going to apply dynomax deadner and i have a pioneer avic z130 bt head unit and going to purchase two kicker zx 2500 amps and two yellow tops cause my trucks battery is almost dead anyway also going to get a bigger alt. or possibly two.Have already bought power acoustik mids and tweets.all going to be ran with 0 gauge.so basically i want the btls but dont know if they will fit because of the…