Fi Technical

enclosure is exactly 1.9 cubes after displacement of the BL and the port tuned to 35 power is gonna be a rockford t10001bd going for a decent daily spl oriented standard cab and thats the max box size with my knees almost int he dash(i drive like that anyway short legs lol) the website says 1.8-2.5 ported

I have made up plans for a 6cu ft box, after port and displacement. The port would be 4" Wide and tuned about in between 33 and 34hz. If i made the port 5" wide, it would take the box all the way down to 5.1 cu ft or so to be tuned to 34. The port would be 21.5 in tall. It just seems to me that 4" is small, but then again thats a lot of box volume to take up. I'm really hoping i'm just more worried than i should be about port size, and the 6 cu ft will work out. Any suggestions?

I'm sending in my 3 hp motors to be reconed on WED. I need a addy to send them to. Also I believe its $148 to have them reconed to 18's including shipping each. Correct? So I you could let me know where to send them, and if its ok to sen'd a m/o with the motor, or would it be bast to calll me and I'll pay over the phone with my Debit card?? Thanks, Joe. P Also The 3hp's have the tall top plate. would there be any benefit to miacine cooling channels in the top plate?? Could you do a fully poly cap on the 18" recone(like a havoc), I've seen 1 done, and a 10 with a poly and Fi logo, I'd love to have a full poly with the FI logo. Would look great..

Hey guys, After putting my 15" BL together in a 3.5cuft box, which sounds awesome, now I just have to fix my amp problems. Anyways, I have to build a box for a friend for her 15" Q. I suggested sealed since she wants to do more stuff in the trunk and I didn't want to take up the whole trunk like my box! We both have Scion tC. I was thinking a box for the 15" Q sealed with the exterior dimension of 12" high x 32" wide x 16" deep, with 3/4" wood. That will give an interior volume of 2.69cuft w/o sub displacement, so with the sub it is 2.5cuft. The sub will be powered by a Kicker sx1250.1 amp, that amp supposedly gives out 1250 watts at 1 ohm. So with that given se…

I am looking to build a slot port box very similar to the threads that are very recent in the forum. My dimensions are slightly different and I want to flare the port walls which will complicate things. My dimensions are: height: 14" width: 30" depth: variable tuning freq: 32 hz box volume: 2.3 cu ft subwoofer: FI Q12 Dual 2 amp: Soundstream PCA1500D Like I said I would like to flare the vent sides by cutting slits in the MDF and bending it. I have made some test bends and they seem to work out pretty well. I have read that adding the flares will require an additional 1-2" of port length. I can add the additional length that is required for the flared p…

I posted on another thread about needing the addy to send a motor in for recone, just didn't want to assume its the website address.. Also is it possible to do a full poly cap on a 3hp 18" recone along the lines of the 10" full FI logo one I saw in a earlier thread, or maybe from a HAVOC 18" plain?? I just prefer the look over the small boob/inverted one.. just wondering if its possible thanks, Joe

I am going to get a 15" Bl and i am going to power it with a sundown 1500 and i was wondering what i should get it with besides for daily.

I decided to back out on the whole 10 cuft. enclosure thing. I finally just realized thats tooooo big so I decided to go down a little. Now I was thinking about it being 8.5 cuft. tuned to 32.hz is that good for low and high notes or what? P.S. Sub,options,amp:18'' Fi.BL:dual 2ohm,Cooling,Flatwind coil,and daily option.its going to be hooked up to a US Amps MD1D thats 1200 rms @ 1ohm (CEA-2006 Compliant) BTW:If you need any more info just hit me up!! thank you:)

well i started my box today for my 15" btl fully loaded, and i almost finished it (i had to work 1-9 today) my sub is going to be facing forward, and im kind of worried that the basket might break, or that it may mess the box up. i didnt double baffle it today, but tomorrow i am going to, im more worried that when i hit bumps and stuff the sub will torque the box and break the screws. also, is there a way to build a support for the motor, i was thinking just building a half circle out of mdt to fit under it with some sort of support to hold it up...

could someone give me advice on a box for 2 BTL's 12?? it'll be powered by a 3500D or 2 2000D's. thanks

hi i'm interested in a pair of 18" btl's and i'm curious how much efficiency is lost by choosing the "daily" option and the "universal" option , these sub are going to be used in a streetmax truck but I may want to bass race occasionaly. I think i'm looking at dual 2 ohm,pole chamfer,thirdslug,hi xmax coil,daily, and universal for the build options on them how much would recones be so I could stock them so when i blow one i can just recone it and order a replacement instead of missing a show waiting on the UPS guy. Thanks for your time Charlie

assuming both had the BP option and would be fed by a 2200 w rms amp, what kind kind of difference would i notice musically between the subs?

Hey everyone i have an 05 civic coupe and i am wanting to put a 4 cubic foot box in the trunk. Does anyone know if this is possible and what dimensions i should use. I am going ported with a btl 15 n2. any enclosure help or ideas is really helpful. i am building this myself so nothing too crazy.

Hi, I am thinking of getting an SSD motor used and reconing it. I was wanting to know if they are a universal motor and could put either a d2 or d1 recone on it, or am I stuck with what ever impedance that came on the ssd when it was 1st made. thanks

I've got 2 15" BTL's and the tinsels have snapped off. How can I get some replacements?

alright guys i have just ordered a 18" btl 18 dual 2 ohm and was wondering what is the possible wiring options that i can run it at ( what ohm ) thanx.

Im getting 1 18'' fi.btl fully loaded and my enclosure is going to be 6.3 cuft. (After all displacements) 3/4mdf tuned to 34hz. But as far as the port can you please tell me how long,tall,wide,etc. it should be for best hairtricks,loud bass at high notes,and the best low bass I can get (Since being tuned to 34hz.) without port noise. One more thing as far as the enclosure should I have the top and bottom of the enclosure double baffled or triple baffled or the whole enclosure double or triple baffled or what? Please help as much as you can I really appreciate it!!! Thanks guys

I have an Older 12" Q thats blown. I''ve finally decided to get it reconed but I want to build a ported box for it too. I see the the diagrams and cut sheets for the new Q, but i'm not sure if that will work for older model Q. It's also unfortunate that the cut sheets for that one are a tad too large for my trunk. I have a maximum of 30W 15H 18D, but depth can vary a bit. i was hoping on building the box during the time it takes to get my Q reconed. That should give me enough time to learn how to design a ported box. I have no idea on how to calculate port length and all that jazz. 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 )

I am thinking about putting an FI Q 15 in a 2 cubic foot sealed box. I think that this size is on the bottom as far as recommended. Does anyone know how well the FI Q performs when it comes to small boxes like this?

Hey, I have 2 tc 3hp motors. I know they need to be sent in to be machined to fit the 12 spoke mounting holes. I saw where you posted prices for a 3hp recone, there were prices for a 12/15/18. Can you do a 3hp 10" recone?? The motor measures 7.5 inches wide at the widest point. I'm hoping there won't be a problem with 10's. I'd like to send them this week, but waiting to see what can be done. Thanks FI.

Hey guys, im from maximum threshold, my team captain has been waiting for a reply from scott about recones for my MT that we need for db drag world finals. Is there any way one of you can speed up the process a bit or maybe we can talk to another one of ya about it? We are in dire need of the recones and our trip to finals depends on it. Its a dual 1.4 ohm recone for an MT. Scott will know what im talking about as he's been emailing back and forth with Peter for a while, but as of late the emails have stopped. Thanks for any help you guys can give us. Don Doyle Team Maximum Threshold

Well i got a decent amount of money back on my taxes so its time for a new system. I have decided on a bl 15 dual 1 ohm and I just want to make sure i got this right. My enclosure is 3.5 cuft after all displacement tuned to 32hz using two 4" tube ports each 15" long. I also will be using a memphis 1500d (1500 watts at 2 ohms). Does all that sound good? Any advice on what options I should add to the sub when ordering? Thanks guys I appreciate it.

my buddy has a 18 btl the old style 3 mag. we took it out one day and the tinsel has been slaping on the spider and put holes in them. the box its in is 4.5 cuft and tuned to 32hz with 1800watt on it. i glued some t-shirt on the spiders hoping it will help my main question is does the recone come like the new style with the tinsel under the spiders?

Wondering on box size for strict SPL setup. Would it be best to use the 3 or 5 cubic foot box or some other size. Tuning will be 54 hz. Not sure on port size yet but thinking 150" per sub if I use the 5 cubic foot size and 90 on the 3 cubic foot size. Will be running 2 Sundown Audio SAZ-3000D to each sub off a 16 volt system. Willing to listen to suggestions.