Fi Technical

how much max RMS watts can a 18" fully loaded BTL N2 handle ?? i was wondering if i can run a 2400 watt RMS hifonics amp to it ?? also will a 6 cubic feet box ported to 35 hz sound good ??

i getting Fi Subwoofer so which Best Fi IB3 or Fi Q or Fi BTL for music i want playing very very louder bass music for longer time at home not car so i dont want blown woofer and i dont want voice coil blown so how i like so much louder bass so how Fi Subwoofer can play louder bass for longer time to playing music so how

I am running a fullyloaded bl15 off a planet audio bb2400 making about 1600rms. Electrical- big three, 1/0 throughout, second battery in rear, voltage stays around 14.3, drops to 13.6 for tones. My first enclosure was 5ft^3 tuned 36, 60 sq" port, with bracing, angle boards and routered port edges. Sub faces drivers seat while port fires up behind passenger seat. I hit a 143.8 meca style. Built a new box 3.5 ft^3 tuned 45 with all the bracing, angle boards and routered port edges and dropped to 141.7. I wanted to find out what box changes I may make to increase score, and if I was crazy trying to reach a 150 with a bl?

i would like to ask about the best enclouser firing direction for this truck? i have a 4 cb. box tuned to 32 hz. sub and port facing the same same way, but facing it forward it puts the port to close to the back of the seat and firing it up flexs the top unreal! can anyone help me with suggestions on a goob enclouser build for a silverado ext. cab truck with a loaded bl 15 on 1500 watts? music prefrence is rock and rap bass tones... thanks for all suggestions...also i would like for it to be loud and hit hard as possible and keep the enclouser size to around 4 cb. tuned to 32 hz. again thanks...

I was planing to make a box for my BL 15... but i have a few ideas.. whats the diffrents from the sub facing toward the rear of the vehical? Vs. The sub faced up ward toward the trunk lid? and what is a good tuneing for the sub? 35hz? 32hz? or 30hz? i have a 1500 rms amp... and i listen to rap and metal.. rap most of the time...

hello guys, ive been a member for a while and have read tons of information on the Fi Bl and im ready to pull the trigger on one, but im stuck with one question. I've viewed the cut sheets that are located as a pinned topic, but i was wondering if i could make a slight modification. Since i will be building the box as a center console in my crew cab truck, i will be downfiring the sub and wanted to move the port to the side firing forward. The only reference i can think of on how i want the box to look is like the DD high efficiency box with the side port. Now my question is, am i correct to think that it will be fine and that all i need to make sure is that the port len…

I have a 12" bl and and I recently built a new box for it. I noticed some what of a clicking sound coming from the sub. At first I just thought it was something rattling in the back of my car but today I went to check it out and noticed it was coming from the sub. It only seems to do it on the low notes and it doesn't do it every time either. I can't seem to figure out what or why it is making that sound.

this box is for a 12" bl and its gotta fit in my 99 acura el (honda civic sedan for you americans) my link let me know what you think.

I plan on running to Fi Qs in a sealed enclosure, using the minimum recommended volume due to space constraints. My power is a Zapco c2k 9.0 4ohm version. I can run the amp bridged or in stereo, so that opens up both the dual 1ohm and dual 2ohm voice coil configs as options. Since I intend to run sealed, I plan on ordering the high QTS option. So here is the dilema: I noticed that the T/S parameters are different for both the D1 and D2 ohm cofigs, and I imagine that the high QTS option further changes the T/S parameters. With that in mind, does anyone have any thoughts on which configuration would behave the best installed in the smallest recommended volume and usin…

I have an X12, 4ohm with BP power option, in a 1cu ft box after displacement, running on 350 watts. I need to know about what frequencies to set to LPF and subsonic adjustments on my Mono amp to best meet the specs of the sub. My subsonic will adust from OFF to 50Hz and the LPF adjusts from 40Hz to 220Hz Thanks Steve

This is a box plan I made, and want some output on this. I was hoping someone could double check "my work" as you would call it, to see if everything seems okay. Image attached along with specs below: box image Specs: For a 15" fi ssd in a 1st gen mazda 6 trunk. .75 MDF Gross box volume 4.05 cu ft. Net volume: I suck at math, no clue. Hoping to be within 3-3.5 cu ft range? 4" aeroport tuned @ 33hz. ***optional setup (I am leaning towards this)*** 4.05 cu ft. gross with 6" aeroport tuned @ 35hz. Dimensions: 15" tall x 35" wide x 30" BD x 4" TD x 29.15" angled front panel length. As I said, honest opinions are GREATLY appreciated, as I want to nail this project. Thanks! -…

Hello, Does anyone have any experience with Fatbox enclosures? I am interesting in buying their box for the FI BTL 15", and was wondering if the box is actually to spec and worth buying. Here are the specs and link: http://www.fatboxusa.com/servlet/the-272/1%22-MDF-15%22-FI/Detail SPECS: - 48 SQ. IN. PORT AREA - DIMENSIONS: 18" HEIGHT, 34" WIDTH, 20 3/8" DEPTH - 4.0 CU.FT.NET VOLUME (AFTER SUBWOOFER AND ALL BRACING DISPLACEMENTS) - NET TUNING: 32HZ (AFTER SUBWOOFER AND ALL BRACING DISPLACEMENTS) - MATTE BLACK PORT FINISH - ALL 1" THICK INDUSTRIAL MDF / 2" THICK BAFFLE/SUB MOUNTING! - 100% ROCK SOLID 1" INDUSTRIAL MDF - BEST OF THE BEST! - ALL JOINTS BONDED, NO LIQUID GL…

I'm getting away from a ported box with my X 10" and going small sealed like .6ft^3. So what kind of power would get it rocking pretty good. I'm thinking around 300 but currently have 160 on it and love it. I want more sq and not so loud as ported. I love the sub and don't want a different one just different sound.

Ok so i have had my Fi BTL for a cppl months now and i was bumping it today and the Dustcap flew off. Does my warranty cover repairs on that? if so how do i go about getting it fixed?

OKay so i have 10 cubic ft box i need to figure out how long the port needs to go into the box and the size of the port hole the box is 20"high x 40" long x 20" wide i need this for 2 Fi BTL N2 15's if anyone could help me out i would aprriciate it thank you

iam having a prob with designing my port for my box can anyone give me some ideas on what to do i already used the speaker boxtunning calc but it didnt really help me

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

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

New to the audio scene and was posed with this question.. Lets say I am trying to squeeze a box into my car, and the trunk fully stripped, can only accept a box that is a max height of 15.5". Would it be possible to fit a 15" Fi SSD in a box that was reduced to 15.5 inches tall? Wouldn't that affect the integrity of the box, being that thin on the top and bottom, or would that even work period? More in depth: Id have to bet that there would be a lot of sanding/sawing involved. I am in a predicament, as my sub faces up in my 1st gen mazda 6 sedan. The actual trunkspace has PLENTY of width, and depth, but the entrance inlet from trunk, or seats is not vary tall. As stated…

i need some help on how to set my amp to my new FI BL 15... its 1500 rms amp... i know to turn my bass boost all the way down, and to set my subsonic filter 2 or 3 seeting below my box tuning. but. im still pretty much oblivious to the settings for my new sub... can somone help me out with some opinions? would be very helpful.

Two Rockford 1500.1bdcp and four fi bl 15s dual 1ohm, with these amps can they pound the bl pretty hard. If I build a custom box for my jeep srt8 will it be loud as hell breath taking, head ache bass. And can anybody help me with box dimensions , cubic ft, airspace in chambers, port size and wat to tune to.

hey nick just tryin to see if this was indeed fixable, i got it from david (basebalz13) the magnet is cracked and its seized. i got pics not sure if david showed you or not already. if you want i can upload em.

how much would be to get a recone for a re xxx18 d2

Hi all, I was curious, has the topic ever come up on here about running one of the Fi dual voice coil subs with only one voice coil connected? I was reading through a forum post on the12volt.com about how it should not damage a subwoofer if the loss of heat dissipation is accounted for by running at a lower power level. Obviously it is better to run both coils whenever possible, but it might be useful to run single coil if someone were stuck in a non-ideal amp setup. the12volt thread What % of RMS power would be acceptable to send to a dvc sub in single coil configuration? Thanks

Hey guys it's been a while since I've posted on here and I just wanted to know what yall think. I've got a 2nd generation BTL and I'm thinking about selling it and upgrading. Which would be louder 2 BTL's or 4 X's both scenarios would be 15's? I know the more the surface area the louder but would the power make any difference in the application. Any suggestions would be helpful. Thanks