Fi Technical

hello everyone. i just got metered today and had a 139db at 48 hertz with my single 12 btl. Just wondering if thats in the ball park of other people.it was on regular music i think the song was jeezy-put on

Well just in the past few days I have noticed that my sub was not working. Me being the lazy person that I am put it off for a while assuming that just a connection was loose. Yesterday I finally got around to taking a look and all the connections outside of the box looked fine. The amp (sae-1000D) looked to be working fine, but no movement or sound from the sub. With the music playing I pushed the cone a little and then it made a little effort but once I moved my hand away it did nothing. This was initially, but today the sub does nothing at all, even when I push on it. Still not sure if the amp could be damaged, I connected another sub that I had laying around and…

How do these plans look for a BL 12"? Flickr Photo Download: Screenshot-01 Jan. 02 Thanks for your help.

Im getting ready to order the Fi 15 BL, i have a 1000/1 jl audio amp. Im not sure which is better dual 1 or dual 2 ohm? Is one better than the other, or does it not really matter?

Hey everybody, I have two 12" Fi SSD Dual 1-ohm subs(copper coil option only) in a ported enclosure being pushed by a Hifonics Bxi-2608D. Last week, one of the subs completely stopped working. No noise at all. I took both of the subwoofers out and tried swapping them to the other sides. Still, the same subwoofer doesn't work when wired to the other subs wiring. So that tells me that it's a problem with the sub itself, not the amp. When I push in on the sub, there is no grinding or anything of the sort. It's identical to the working subwoofer. Everything looks fine physically. So I tried hooking it up to a multimeter. One of the voice coils reads 1.1ohms, the other gives…

Title says it all. I can build a enclosure with about 11 cu ft (internal volume, displacement of the subs has been removed). I read on a forum a while ago that you get the best SQ if you go with a big vented enclosure. I want to hit the lows but not to loose the highs completely. I listen to almost everything that's called music. That means from Queen to ATB to Bob Marley. My goal is SQ. The car is a Toyota Celica GT, this one: I will be using a Hifonics BXi 2610D amplifier pushing 2600W rms on to two Fi Q 18" subs. The optimal vented enclosure as I have read is from 6-10 cu ft for one, meaning 12-20 cu.ft. for two subs. Or 4-8 cu.ft. for a sealed enclosure, 8-16 cu.f…

i am getting a 15" Fi Audio SSD15 sub and i am wondering what amp i should get. i dont know if i should get one with 800 rms or 1000 rms. also, what are the best specs for this sub? Also, will i have to do the big 3 or anything else to handle this wattage? i have 98 navigator. thanks!

So I know these Fi speakers can take a beating, but I had my 18" SSD playing for maybe an hour at pretty high volume with some really heavy bass and I noticed a burning smell coming from it. The dustcap was pretty warm. I know its the voice coils, but I play at the same volume all the time and have never had this problem. Is it just because of the extended usage ? I know its not good when it happens. I'm running it off an Onkyo HT-S3100 5.1 receiver. I don't think its clipping, as the receiver would shut off. The sub is fine when not played for extended periods though. Should I be worried ?

Well my 1 18in fi bl mag cracked. Dont ask me how lets just say that i am very sad that this happen. And another bad thing that happen is one of the voice coils went bad in it to. I took one of the subs out of the box cuz i heard alot of buzzing. Then saw that the top magnet of the motor was split in half. I dont know why this would happen but it went from me bumpin super hard to only bumping a little with one sub. So if anyone has a BL motor please let me know or give me some info on how i can get it replaced thanks.

I've posted one thread similar to this one once before, But I felt the need to make one a little more clear. I own a Pontiac Grand Am. One of the worst vehicles to work with when it comes to car audio installs due to very limited room. I got an idea the other day sitting in the front seat looking back at my folded down back seats. I figured.. what if I took the open area where my seats fold down leading to my trunk area, put up one peice of 3/4 or so MDF across that opening, cutting a opening in it for the 18" BTL and another for a port that's tuned to 30-35 hz and using my entire trunk area as the enclosure, without the need to build an enitre box. Since there is not eno…

hey so I bought Bl 18in dual 1ohm. Im using the Re calculator for a L port, but im seeing there are many variable s that i have to account for so if you guys can help me understand what to do. Its going to be tuned at 32 hertz So how much port area should i have? My demnsions are 37W by 20H by 15 D. How much box voulme should i have? And where should i mount the subwoofer can i have it on the same side as where the vent will be? how far from the vent should it be? This is the first time i have ever done somthing like this so i dont know all the terms and what they mean so if you could plz explain it. thx!

I am going to use my 12" in a room setup for listening to music, it will be on a 500 watt dayton plate amp. what size sealed enclosure would you recommend, looking to keep it under 2 cubic feet.

Just ordered my 15" SSD and cant wait for it to arrive. Now on to buying an amp for this little beast. It will be going into a 2008 Nissan Frontier 4.0L V6, enclosed in a 4.2cf. Ground Shaker box. My main concern is how much this sub can handle. Its the Dual 1 Ohm version along the flat wind coil option which Ive heard ups the power handling. Ive been looking around for an amp, Was looking at the Kicker zx1000.1 which puts out about 1100-1200W RMS, the MTX Xthunder X1000D, and the Alpine MRP M1000 all puting out similar rms W (1000-1200). I would like to go with the MTX for the reason that it is on sale for $269 on sonic. Ill include a product list below along with the mo…

Well im in my garage right now trying to decide if i should make a 5" slot port tuned to 32hz, a 4" slot port tuned to 31hz, or a 3" tuned to 27hz... Im using the RE calculator to build a box and when im looking at the 5" port it says the Volume internal, and volume displaced is 2000...on the others its 1500 and below..i have no idea what this means, is it how loud the box will be or what..Which port u think i should design???Also the larger the port the less box volume i have..its been between 3.6-4ft3..i cant make a bigger box so let me kno which port is gonna be the best!! PS. the box i have been running is below 1000 volume internal and displaced, so im guessing the …

I just bought 2 10inch BLs and I have a 2600w hifonics amp, what size speaker wire should I run from my amp to the subs? ive been told 8, 10, or 12 AWG and im not sure which to go with... Thanks

i have a home audio 15" powered sub that needs replaced was wondering if could drop a IB3 in it if it would be alright? Thanks Jesse

im running 2 bl 18s off 2 saz-1500ds now, subs up, port back. I got guy that wants to buy my subs possibly, so im looking at other options. How would 4 ssd18's take the 2 saz-1500ds? Would they get enough power? thanks

Hi I need some questions answered on the x12. I need some input on what size and kind of box to put it in. I have a phoenix gold xenon 400.1 to power it and I listen to a lot of bass heavy music ( rap, chopped & screwed, etc.). I know what the website recommends but I would appreciate any input or suggestions. It will be going in a 1995 neon 2dr. Thanks!

I was wondering if it would be possible to use a Q 12 in an infinite baffle setup. I would only be using around 300-400 watts. Any help would be much appreciated. (I know Fi has an IB sub, but since I have the Q already I would like to use it. If not then ill end up selling it and get the IB3 )

Hello everyone. I am receiving a 12 inch Q for Christmas which I am rather pleased about because Fi woofers are class... I was wondering what I should do about a box, the woofer is going in my bedroom instead of a car but all the reviews I have read about the Q lead me to it. It will be used entirely for music, rock, techno, a little pop, and perhaps some rap to show off a little. The room is about 8x10x8 with a chunk removed that is about a 18 inches by 3 feet for a closet, so not a terribly large room. One of my questions is the great sealed vs ported debate, which would sound better in this application. The Q will be more than plenty in a room this size either way. I…

Hello, I am new to the forum. I just purchased 4 Fi X12's on sale from Fi. I was wondering what kind of box I should use with them. I would like ported for more air movement. The Fi website does not have any recommendations for the sub besides the size of the box. "sealed= 0.9-1.3 Ported=1.6-2.2" cubic ft. I was looking for some kind of calculator for port size and what frequency would be good with these subs. They are going in a 1990 GMC Sierra ext cab w/removed back seat. they will be in a straight line. Should I enclose each separately or all in one enclosure with one port? Any help would be greatly appreciated. Thanks.

Hello all, I have a 1999 GMC Yukon that I use on weekends to travel to sporting clays shoots. This truck will never be used in a Audio competition just two semi deaf old guys(36 an 38) like to play it loud. The current system is: Subwoofers and speakers 1 JL 18w3 2 Jl 10w0s 4 Infinity 6.5s Amps Kenwood 9104D (powering the 18) Alpine MRP-M500 (powering the 10s) Alpine MRP-F300 (powering the 6.5s) Other Two batteries high output alternator "big 3" This "system" does okay but we are getting a little bored with it. I have a second Kenwood 9104d (900 watt rms at 2ohm limited to 900watt at 1ohm from what little research I have done these amps really do around 700 wa…

I have 2 btl 18s, 220 amp alt, kicker 1/0 wire 2 aq 3500's (should be here monday). I am currently building my box and have NEVER ran with this much power before so I wanted to make my box a little smaller than my old one I am looking at about 11 cubes net tuned to 36 hz 152 square inch port. I just would like some input if I should go bigger or smaller on the box please input asap...oh ya by the way the subs are dual 2 ohm fully loaded ( I have pics of my equip if anyone needs proof lol)

Hey guys. Got a question concerning how much power to give a BTL. My previous system was a loaded 12" BL @ 1ohm load, and pushed by a 1500D amplifier with gains at about 7/10 and 4V headunit @ 22/35. I figure it was about 1200RMS? Now, I see all these people with BTL's saying they push them with 3500RMS+. I just don't see how that's going to be possible.. I'm asking because I figured I could get away with running a 2500D amp for a single loaded 12" Fi BTL . Should I really be looking at more powerful amps?

I was looking into getting a btl 18” I was wondering which option would be better a dual one or dual two ohm subwoofer??? Thanks in advance