Fi Technical

jl 12 w-0 4 ohm. can this be reconed?

I have a 2003 Gmc envoy, and dont know what i want to put into it, was thinking either 2 of the 15 or 18'' btls and either 2 of the RF t2000 bd or 2 of the t4000's any ideas what would be loud and still sound good?

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…

Ok, so i have figured out what i am going to get. 1 fi btl 18 and ma audio HK4000D with pioneer premier DEH-P980BT deck. I need some help building a box, just need a very simple one I have a dodge charger and the dimensions we have to work with are 31w x 14 1/3h x 30depth and MDF 1inch since the height is only 14 1/3 i am going to have to slant it, can someone help me with a drawing or something, like where the top panel needs to slant in order to have enought room to fit the sub please tell me what you think and if you have any advice please tell me. Thanks, Madison

I'm curious if you guys could build one for that sub? 4" coil, 10" spider landing Must use a spider spacer too. Which I have, it uses an inverted neo motor OD is close to 4-3/16" maybe 4-5/32. My calipars don't go past 4" lol thank you

Any chance I could get approximate T/S Specs for my re-coned subwoofers? The hybrids consist of Memphis 15-MOJO15Q1 (15" Quad 1 Ohm Voice Coils) mated to Fi D2 soft-parts with older style tinsel leads. I purchased these already assembled from a friend but he didn't have any specs on them at all. Any help would be greatly appreciated. Thanks, Charlie Buffalo

i got an Fi BTL 12 and i would like to know what the best way about mounting it in the whole would be.... what kinda screws...coarse thread, t-nuts?

I have emailed the address available on the site and havent received a reply. I need the specs for the new 18" btl fully loaded.

i want to know if 1 fi x 10" is good on a 200 watt amplifier. and what dbs could u get out of one

Hey so i want to tune my box to 32 hz. but i am confused on how this whole box design works. The previous systems that i have had i just bought boxes, but this time i want to build my own. I drive a jeep cherokee so I have plenty of room in the back end for a big box. 1 12" Fi Btl sub. Dual 2 ohm, fully loaded. Brand new. (I have not purchased it yet, but when I do, this is what I am going to buy) Wheel well to wheel well is about 42 inches. Back seat to back door is about 25 inches due to my seat coming out at an angle. (I lose about 8 inches) The floor of the back end to the roof is about 38 inches. The floor to the top of my backseat is about 18.5 inches. Here are some…

i've been reading about the whole tinsel slap thing and it's kind of scaring me... i got a single 15 hybrid transmission line built by stratusrt01 a few months ago, he okay'd to me that sub a btl would work fine in there, are their any plans in the future for any upgrades to the tinsel leads? i was thinking of getting a fully loaded 15, the car is 2002 caddy deville, the box is stout as fudge, resin on the seams, i'ma 250 pound dude and i jump on it all the time, and it's rock solid. i dont do music for the numbers, i just a daily beater, just trying to get some feedback from the people with experiance. Thanks in advance fellas.

Hello, Today I pulled my Q12 from the box (Dual 2) and tested both voice coils. They seem to settle at about 1.4 to 1.5 ohm. Is this normal for a dual 2? *It has not seen power yet.

Hello, I have been thinkging about buying a new sub and one of the members of another forum I visit is always raving about Fi subs so I decided to have a look for myself. I have been trying to read up on the forum and think I have decided on a sub, but I am not too sure about the box. Based on what I have read it seems that a 12" Q is what I am looking for. I want a good sounding sub with the ability to play low and loud. I only really want 1 sub as my trunk space is limited and I'm not trying to win any spl competitions. Basically it will be in my daily driver. Right now I am still in the research stage but have no clue about a box. I don't know if sealed or port…

I've seen that Fi is using woven leads at least on some products, is the Q on of these? Also is this change going to make it over to the AA Havoc any time soon?

I'm probably going to order my Fi SSD 12in this Friday, and was wondering which coil to go with. It will be hooked up to a Kicker ZX750.1. And I read somewhere, that these can be somewhere between 900-950 watts RMS at 2 ohms. So would the Flatwind Coil be the best to go with.

I ran 2 bl 18's off 2 sundown 1500d's for little over 2 years with no problems at all. Those bl's had cooling, flatwind, daily options. Now they offer to have a 4" coil for extra $50. This time I will be running either an aq or sundown 3500 on 2 18's. With the 3500d should I go ahead and get the 4" coil, Im pretty sure the 3" would be fine since I ran the others with no problems that long. thanks for suggestions

I was told that I could check the sub with a dmm meter to see if its in good condition I got a 1.9 reading is this good, I think so just want to make sure? Its a 2 ohm dvc

the dimensions of the room i have are 49"w 41"L 41"H. i was wondering if someone could give me a cut out of a box that will hit lows really good and move alot of air thankyou.

Hey guys I'm getting my plan's ready on my btl n2 18. I already have my amp to power it(hifonics for now). But I'm still deciding on the box plans. I'm doing a ported box tuned to 33hz. I want to do the box perfect and to spec but I'm having a hard time calculating the bracing and how thick I should make it for safety. Any advice would be appreciated thanks for your time

I have an 18" Bl and i want to know what gauge wire you think would be best to run from the speaker terminals to the sub from a Rockford Fosgate T1500-1BD. Thanks!!! I want the most power i can get to it so im thinking 8 guage but may be too big so please help!!

looking at an 18" Q in a 4cuft sealed box....would a us md-1d be too much for power, or should i look into the bl line?

ok, gonna be fun fitting this in my grand am. removed the double fold backseat. and plan on put a box running all the way from the trunk to behind the driver seat here are some plans for the box its about 9-10 cubic ft right now. questions? shape dosent matter dose it? do u think ill need some more support? how big should i make the port?

I want to make an SPL system so I`m asking what option should I set and this sub is good for spl. Sorry for my english I`m from Bulgaria.

Does anbody know anybody that can build a box for me and setup my system. I'm ordering 2 15" SSD Fi subs with copper coils and I'm getting a sundown 1500d amp. I have a 2006 trailblazer SS. I need it to be at least 7 cu ft. My main reson for this post is because I live in the dallas, tx area. Does anybody know anywhere I can get this done?

Well,I just ordered a Q15 dual 1 ohm sub for my car. I had a 12w6v2 in a jl spec sealed box but after hearing the Q10 in a sealed boxed that I bought for my wife's car (hers goes lower and sounds better than my 12" ,just not as loud)I decided to go Fi also. I have a 06 Jetta and I wanted to run a sealed enclosure.I have lots of trunk space. I know that the spec sheet says 2-2.6 ft3 but is there anyone running larger and how does it sound. I want to focus on sq and very deep lows.