Fi Technical

Hello everyone It has been awhile since ive las longed on to this accound but now im back. I got a Fi Bl 15" about 3 yrs ago and i would have to say it was the best/ loudest/best built sub ive ever come across. I had my box made by a guy out in Canada. His company name was Pound That Sound. Since i havent been on this website in awhile ive noticed that he no longs makes enclousres.... Ive been looking around for someone to help me with my next built since ive gotten a new car. Im sticking with the BL and i going to have the same set up likelast time, 1 BL 15" w/ hyper pole option. Now my question to anyone who wants to answer is... is there anybody you would recommend for…

These questions may have been answered before but a quick search did not turn up the obvious answers. I have 2 completely separate and very specific applications I'm looking at for 12" drivers (neither of which involve being inside a vehicle BTW) and I need a little bit more information to help in the decision making process. What is the motor OD on the Q series and the BTL (11.5" I think?) What is the overall depth of the 12" version of the Q and BTL? Also what is the motor only depth of both from the back of the frame? What is the generic xmech of both series? It's nearly the same I assume as baskets, vc od and suspensions are very similar. I figure about 35-36mm inwa…

ok here's what i got...99 mustang rear seat delete wanna do a bl 15 d1 sub up port back in a 4.36cf box@33hz(that's internal)...i was told on here that fi's specs for cf are after speaker displacement...internal dimesions for box are 15x15x33.5...as for the port i got 4x15x25.66....does this sound cool...btw that 4.36cf is before port/bracing deplacement..as i stated earlier i was told that the fi specs for speaker displacement are already included....if someone can confirm that this is all good i would greatly appreciate it

http://www.subwoofertools.com/calculator_d...mp;sheet_size=0 would this enclosure be good for 2 12' fi Bls if not then anyone have a good design that they like to share or does anyone have all the specs on a 12' fi bl

im redoing my room and i want the fi revolution picture you see when you first go to the website in high resolution cuz my teacher is gonna make me a laminated banner for my room and i cant seem to find a high quality picture or the picture anywhere for that matter i looked everywhere and cant find it and now im asking around is there a way i can get the picture emailed to me or someone know a website i can get the picture?

If anyone has tried this could you tell me what you think of it? I'm trying to build a wall that is all funky shaped. Trying to smash 4 18's into a Ford Explorer. found this program but would just like to know if anyone else has used and what you think of it. The bottom is 37" deep x 52" wide then go to 33" deep x 18.5 " high. Top is 33" deep x 52" wide 18.5" high Grand total of 37" tall x 52" wide and the depth. Trying to utilize every bit of room I can so I can still have room for batteries and amps. Plus the ports gotta go in there to. Any help on any other programs or any ideas would be appreciated. Got it drawn out on paper. Kinda to scale it down to where it will …

I have 2 15Q (1st gen with no options) with 2 saz1500d and it gets hot over a short period of heavy bass music. I was wondering is there any way I can increase the power handling of the sub. I am not from the US so to ship the motor over to get the partial BP would be expensive. would it be possible to use the BTL spider on the Q or other options? I know changing the spider would increase Fs and Qts but would it be significant? thanks

Curious if anyone wanted to help me out by designing me a box for my 2 18" bl's. i want to build it myself for the experience, but dont trust myself designing a box. Obviously new 2 this, if interested i can give u max dimensions and other info for my 98 tahoe. Im plannin ahead and not ready to build box yet, but just would like to find some1 to help me out. Thnx for the responses.

okay my box is 20"hight x 40"wide x 20 "depth according to the speaker box tunning calc. its is 7.63cubic ft. now iam trying to figure out my port on it and the lengths i have right now is 7"hirght x 9" wide x 15" depth and i get 33.81 hertz its the hertz i want my box to be tuneed to but the port area per foot is only 9.14"sqaured and Fi says the port should be 12-16"sqaured do i have to cahnge the port to be 12-16"sqaured thank you for your help

alright so my question is what size and what would be the ideal tuning for a box in my truck. I mostly play a mix of rock and rap So what would u guys suggest would sound best i have a little over 11 cu ft but dont mind doing smaller just want would be best for my music So i guess im going for LSQ i have had no experience with 18s so any help would be apprciated

say you have ur port is it bad for it to be perfect for ex. a 10"hieght x 10"wide port pleases leave ur opions belowww thank youu

So, now that my friends vehicle is out of my hair, I have a quick question about mine. I listen to almost pure rap, love it. I love SPL big time, all the vibrations, shaking of the vehicle, etc. Would a 12" ported BTL be the best bet for me? It is obviously going in a car, so room is..well, eh. Or would something like a couple Q's be better in the long run? Right now, I am considering the single BTL. Now this is gonna be a stupid one for ya, which Fi sub compares to RF T1's? I have a dispute that continues now and am curious. Thanks....hope I win this fight, lol.

After speaker displacement I have 2.46 cu ft, I need to figure the port for tuning to 32 hz (recommended by Fi) I was looking at about 28 sq in of port, how long would the port be ? Do I need more port area ? If so what would recommend ? My enclosure is 43w x 14h x 7.5d(combination of top and bottom divided x 2). Thank you for all your help.

Was wondering when Fi will have them posted here. Also, does anyone have any for 1 15" BTL @ about 3.5cf with a slot port?

need help with making a ported box for the 18 btl i've measure the trunk space in the lincoln ls Height = 14.5 inches Depth = 24inches width = 40 inches also i will be using 3/4 inch mdf so i just need to know how much i need to cut when i head out to home depot or lowes and what size to cut for the port also what size screw should i use for the box? and material i should use. this is my first box so be easy on me.

Hey guys, i need help with a box design and unfortunately im strapped on time. If someone could help me out with some plans with these specs i would be greatly in debt. Box is for 2 12's ( .15 displacement per) tuned to 32hz - slot port centered on box double baffle 3.6 cubic ft total 36w x 16h x ??d I need the width and height to stay at 36 and 16. I tried using subwoofertools.com but the program wouldn't give me 36x16x?? but rather 32.5 x 16 x 23.5 or something. Once again if someone could help it would be greatly appreciated.

just want to know if you have authorized dealer in philippines. interested in bl or q and with upgrades. i will be using sundown SAZ-1500D

so i know that i cant make a flatwind coil option motor match a copper coil but how about a stock ssd match a copper coil one. anyone?

how long are Q voice coils?

Before my son was born, I was running 18's and I really miss the output of that setup. So I am thinking of sending in my 12's to get re-coned as 18's, or if its not to hard, just doing the re-cone myself. Yes, I am tempted to off load the two 12"s and just get a 18' xcon or BTL, but with hardly any more power, and 1/2 the cone area, this setup should be louder theoretically. Secondly, I am not a box designer at all and I am completely lost as to what works and doesn't. This is a daily setup. I don't compete. Using RE's Calculator just as a ref, it looks like the max volume I am able to get is around 13.5 cubes before displacement. That is leaving a bit of space between…

I was wondering if anyone know the spec sheet to this enclosure at 2.5ft^3 32hz. 3-D diagrams don't hurt =D

Hey everyone. I'm in need of some plans for a ported enclosure for two 12" Fi SSDs (with copper coils if it matters). This will be my first box build...but I'm confident I can make a nice quality box. I'm just having some trouble coming up with some plans. Does anybody have some drawn up I can use for reference? Any help at all is greatly appreciated! Here's some info you all might need: I want the width to be 44 inches. It's going in the back of my FJ Cruiser and I am trying to build something like this: This picture shows what the actual box looks like: The width in the back is about 45 inches. So I think a 44 inch box would fit nicely like his. I'm mostly looking for…

would a tline work for my bl 10 ive always wanted to try one

I've tried searching for this, but to no avail, so here's my question: I am planning to mount an IB315 to the rear deck shelf in my car, but not in the usual drop-in fashion where you screw it in from the top. It will be mounted with the front of the woofer touching the wood baffle and screwed in from behind the woofer. (Maybe there's a term for this, but it eludes me.) What diameter should the cutout be? The specs say 14.125" for the cut inner diameter, but I assume this is when mounting it normally. I am mounting it this way to leave room for the excursion so that the woofer won't touch the speaker grille cloth. I am trying to make as many modifications to my car…

I originally bought a FI Q 12" dual 1 hoping to run it with a JL 1000.1v2 so I didn't really think much or care if it was dual 1 or dual 2. Unfortunately for my plan the 1000.1 would not of fit due to space restraints where I planned to mount it in my car. I instead went with a Sundown Audio SAX 1200Dv2 running the 12" Q @2ohm with ~700 watts. I find that the bass is adequate but when I look at the cone I can tell the excursion is not what it could be since im running it underpowered. Im wondering if I should sell the dual 1 I currently own and instead buy a dual 2 and run it at ~1200. What amount of DB sound difference would I be looking at? How much am I losing out exac…