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

im ordering ssd12's and i dont know wat to pick between standard or h qts.. i have no idea wat it means, so if anyone knows please tell me. thanks

Ugh i just bought a box form a audio store and its a 1.75 cuft and and im sure if i want to use it. Would it be ok to use it tell i find out how to build my own box?

So after selling my Avalanche, i put my 2 13kv.2's back in my car. This is when i realize how amazingly low the avalanche gets. I am almost set on purchasing a 15" BL to replace the avalanche, but i just want to be sure that i will not be dissapointed with the low frequencies. I know it will get loud, but hell my 13kv's matched my avalanche at certain frequencies too. (BL will be on 1200 watts in 3.5 @30hz if it matters much) Anyone with experience with an avalanche as well as a BL (or other Fi sub, i assume they are a bit similar) please give me some input. I want to be absolutely positive that the BL will be $300 well spent. thanks.

ok so I have an old style 18" BTL w/ pchamf, hixmax coil, and 3rd mag.. i want to upgrade and have 2 18" BTLs but as you know they do not offer those options any more and Fi will not make me one with those options, already spoke to them.. if I buy a new style BTL with the newer motor and put it in the same box with my current BTL would that be ok? how will it sound if any one has done it ? and will i damage my sub? Thanks to everyone in advance, ****ty situation i really dont wanna have to sell this one and buy 2 new ones..

I got a pair of Q15's yesterday. I put them in the box which is 3.5 cubes tuned to 28hz and they sounded different then anything else ive ever heard. As much as everyone praises the low-end ability of the Q it seemed to me that the higher notes(40-60hz) sounded louder. The low notes made a popping sound that sounded like it might be hurting the speaker. I called someone who runs the ssd series and he said he had the same problem. He told me to tune them to 32hz and it would fix it but the whole reason i wanted the Qs is to hit lows. Should i give the speakers some time to break in or is anyone else having this problem. 2 Q15s 2 MTX TA81001 Thanks Keith

I have a 12" bl and I currently have it wired with 16 gauge speaker wire and I am about to re-wire it with 12 gauge, by doing this can I expect a a change in the output of the sub?

Im purchasing 1 fi btl n2 18 inch, and im not sure whether to choose dual 1 ohm or dual 2 ohm. I have a 4000 watt mono amp with a lowest possible rating of 1 ohm. I used to have 2 12s but im moving to this 1 18 inch and wish to have it running at 1 ohm. Ive read around and from what ive heard, i should go with the dual 2 ohm sub, but i wanted to be sure before this purchase. thanks for your help

I've had my Q12 for about 2 weeks now. It's been playing very nicely and hitting hard. But last night while driving around it started to cut out. It would hit a few notes and then stop. A few seconds later it would pick back up for a while. It's a D2 woofer connected to a Cadence TXA1000D amp 1ohm. It's wired in parallel. I turned down the gains and reset the settings to zero and tried to retune it. Now it seems like it isn't getting any power to the sub...I checked all the wire connections...seem to be fine. I'm lost and kinda worried that my 2 week old sub is fried... =[ Please help...

that is 1.5 cu.ft after displacement at 35 hz,has anyone here done this? if so,how did it do ?

Does anyone know what the F3 for a pair of X 10's sealed in 1cft will be? Will be at 800~900 wrms for the pair. I listen to metal-hard rock, with the occasional techno/hiphop just for show off. Trying to save some space and these woofers call for some tiny sealed numbers so I think this is the way to go.

Before you tell me to look at the sticky, let me explain. I looked at the sticky and it said that the a cut list and more in depth enclosure recommendations would be available soon, and that was a long while ago. If anyone has experimented A LOT with the 18 SSD please explain it to me. How much port area, size, tuning, wattage, sub and port placement, and pictures if possible. I really would appreciate anything you can give me.

would anyone recommend running 2 hifonics brutus 1606d mono class amps to a 15" fi btl sub at 2ohms and connecting each voice coil separately if no. why not?

Driving along one day and my 12" SSD cuts out. Its in a sealed 1.1 cu ft box. I l=pulled the sub out of the box, and noticed that an internal lead on each of the voice coils has come undone and is frayed. (Photo: http://www.i.imgur.com/jCFOwGQ.jpg) I called the shop i got it installed at, and they said they don't touch sub repairs. Is this something that can be repaired? Am i Going to have to send it in to Fi to get reconed? Does anyone know a good shop in the SF Bay Area that could fix this? Also, after a bit more research, it seems this can happen when using an improper sized box. But i was using the Fi recommended 1.1 cu ft for a sealed box. But I do not have the…

Hi guys, I used the cut sheets for the fi btl 12 inch before. Was wondering if anyone has any cutsheet for 15" sp4 in sealed enclosure. Just for daily setup powered of a saz 2500d.

I am trying to get a box together for my to fi q 12s & I am looking at about 5 cubes net (maybe too big for the subs possibly 5 cubes gross would be better?) after port, sub, bracing displacement tuned to about 32hz powered by saz 3500v2.I am stuck on port area or it was just less than I expected I could put 2 6inch aeros in but the length is what gets me. I was using the torres box calculator 5.57 per cubic foot & that seemed kinda low to me since the specs say 12-16ft per cu ft I know thats a general rule of thumb for slot ports but still. I guess what I need is some help designing a box my max dimensions are 19" Height x 39" Length x 17" depth. This is going…

You guys must be busy...I sent a few emails and all I get is a message saying something about email delays...o well I guess I will have to wait a couple more weeks to knwo when my subs will be shipped back to me.

Whats the sealed volume recommended for a 18" ssd?

hey guys, this is my first post lol but i have been a member for a bit. so i just got a 18" Fi Q and just built the box to 6.3 cubic feet after port and sub displacement. i have the port tuned to 31.4 hz. it sounds amazing especially in my little ass car lol fits in the trunk just perfect. i have it double baffled and it doesnt rattle or leak any air. i am running hifonics 1600 watt rms amp, turned a little over half way up, and have 0 gauge wire. stock alternator and battery. big three upgrade. i have 2 questions tho. my first question is...there is no gain setting on my amp...idk where to set the gain bc there is no knob. if somebody could give me some help with that it…

Needing a basket, as the title shows. I was wondering if you two could hook me up with something for an experiment that a friend and I are looking to undertake. I need a basket that will bolt to any of the listed motors, we have a few right now, there's a Treo SSX 534 ounce, 12" motor with a 3" coil, and a Treo 582 ounce 18" motor with a 4" coil, then we have 2 RF power series motors that are old school- like the HX2's that have 4'' coils, and we have an Orion HCCA motor with a 3'' coil. Was hoping maybe I could get an 18" or a 22" basket to play with? Let me know if you guys can help me! Got any parts for the 22" lineup machined yet? I would be happy to test some of the…

so Im trying something new with my truck, I have an ext cab s-10 with a hole in the back...a big one... I can fit 2 12'ss, have about 8 cubes to work with(preferably a little less), and 3000 watts of power. I really want to give fi a try after having some trouble with my previous subs. Im lost as to which to go for the BL SSD or the Q, all seem to be a good choice to me for my application. Im going to go ported for sure, around 35hz. First in foremost i want loud music, It doesnt have to be the most accurate, but i dont want it to sound like a fart iether. So, can you guys help feed my addiction?

I recently bought a sp4 and i have it powered by a hifonics colossus, im getting a 350 amp alternator and just wondering if i need a bigger battery? Whats the point of a bigger battery cause once the car's started the alternator takes over for the electrical system right? The 350 amp alternator should be more than enough to give the amp all that it needs right?

ok I am upgrading from a 10 Q in the cab to a 15 Q in the bed with a bed cover and a boot (uncertain what size) i need some help with designing a box height 17.5 width 40 depth 59

Ive been looking into a sp4 18 and have a few questions, hoping to find somone on the fourms instead of flooding fi with emails atm. Would running a cresendo 3500 to a single 18 sp4 at .7 be to much? Also how many cubes should i go with with 1 18 on 3500 tuned to 32hz. I would be getting the sub with all the opitions also if that makes a differnce in power handling. Thanks guys!!

I ordered 2 15" fi btl subs I also already have 2 rf t40001bd amps.. I was curious if everyone thinks I should just use one of the amps for both subs (each amp would have its own sub) or if 1 amp should be enough for both subs.. Any help is much appreciated