Fi Technical

for starters 2002 ford mustang gt double din jvc Big 3 upgrade 250 amp alternator running hifonics brx 2400.1 with 640.4 both brx changed up build was going to run 1 fi bl 12 dual 1 already ordered and on the way but ran into a fi btl 18dual 2 my game plan is to remove back seat and build sub enclose there web site says 5 to 8 cubes tuned 32 htz got just barely enough room for 7 cubic foot box with amps in trunk lol! Is it possible to get go low end with 5 cubes trying to open a little area other wise the 18 is 3 inches from my head in case I didn't say 18 is sub I will use also do have xs battery coming also I guess im asking for help to design size of box and port si…

Went with 10" bl, cooled, RF t10001bd at 1 ohm, 1cf ported box, (which is tuned a little high, might take apart and add an L to the port to lengthen it and drop tuning a bit). Just bought a 200amp alt. 1/0 wire all around, 4awg on alt. Was wondering if i should go for a cap, read that independent testing puts this amp closer to 1500watts at 1 ohm and want plenty of aux power, for starting the car and what not. Also should I stuff the box? Been a while since i had bass in the car, but then nit was just a thrown together mismatch system with no regard to resistance on the amp or any other important factor for that matter..wanna do it right this time. Any advice is appreciat…

It is 2.375ft/3 and tuned to 30Hz. I mostly listen to rap and some techno. Is this a good box for a Fi Q 12? http://www.caraudio.com/forum/showthread.php?t=280672

I have a 12'' Q dual 2 ohm and it will be wired down to one ohm. I have a hifonics bxi1208d powering it. I wanna make sure i get my settings right on my amp. Where should i set the SSF at and the low pass at? Also since my HU has 4 volt output, should i set my level to 4 volt? As for the box, what hz should i have it tuned to. I listen to mainly rap and deathmetal...yeah i know complete opposites haha any suggestions will be greatly appreciated :)

I plan on building the enclosure per Fi's specs of 1.5 ft @33hz. The dimensions I have come up with is 14.5" x 14.5" x 18" using3/4" MDF this gives me 1.4937ft after subtracting the woofer and material displacement. I can add to the 14.5" sections of the enclosure if need be to account for port displacement. I'm not familiar with how to calculate port displacement though so I'll need some help on that as well. I planned on mounting the sub on the 14.5" X 18" side and would also prefer to have the port on that side as well. I just want to make sure that I get this right. I'm looking for maximum SQ but still want to have good output. It will be powered by 550w/rms in a PT …

I was wondering if you could send me the exact dimensions, that would be the best for the 12" BTL that I just bought from you tuned to 32HZ? The biggest size box that fits in the trunk of my Chrysler 300 is 32"wide by 35"long by 15"tall, that is the biggest size box that we can fit in there. If you could help me out that would be great. This is the exact sub that I bought: BTL12 Ohm: dual 1 P_Chamfer: no Cooling: yes +$40 3rdMagnet: yes +$30 HiXmCoil: yes +$20 Daily_or_SPL: Daily Inner_H_Sink: not available Universal: yes

i bought a mt motor a few weeks ago and ups damaged it....the pole has shifted to one side........can you fix this? or is it a 53 pound paper weight?

A different account huh? I see your location has changed to "US", and so has your IP address as well...interesting. because h disable my account so cannot post thread that why i sign up new account old account cannot post thread and reply too they disable Yes they disabled your other account because you are being very childish and suspicious, he already told you he is not going to build you a box so try somebody else or try asking someone that lives in your area i told him just do shipping US my friend live at US lah but he wond help build box for me i have money i can pay so no problem but he said wont help what i wrong

I got chris at fishercustoms.com to design me box for 2 BL 18's. Its little over 18 cubes before port and sub and around 15 after, tuned to 33hz. Port is 10.5" wide. Figured i would post up design, hopefully i will have it built next couple weeks. We been workin 7 days a week, so as soon as i get a break, will get started on it.

Just got my 15" BL two days ago "THNX Scott!" Just wondering your guys opinion on this box design... does everything checkout? I'm iffy about the 3.8ft^3 should i cut it back to 3.5^3 http://www.subwoofertools.com/forum/ported...s=34.5&CE=0

hi there! im planning to purchase an fi q 12 and fi bl 12. i just want to know the shipping weight and shipping box dimension of these two subs. thaks in advance!!!

What up everyone! Newbie to this forum!!! Just want some opinions on going sealed with my Q18s. I read a couple of threads on here were some folks are running their Qs in sealed enclosures and they seem to like it. Currently mine are in a 12.3cu enclosure tuned to 30hz and I pulled a 146 @ 39hz with it. Here a link to my current build http://www.*****.com/board/ind...?showtopic=3714 Vids http://www.*****.com/board/ind...?showtopic=8473 I've got good sq now but want better and I think going with a big sealed enclosure would do it. Want you guy's opinions! Thanks!

Ok, since i've got the new amplifier, I was looking into the bl's a little and keep seeing all these posts about them missing out on the low end, (ie sub 35 hz). Is this true? My enclosure is tuned to 27hz at 8.18 cu ft and the Q's perform awesome in it. I want to go with the BL's because they will handle a little more power than the Q's because I'll be running a IA 40.1. How do you guys think they will perform in that enclosure tuned to those specs? If they won't handle the bottom end like the Q's, I am also looking at the AA Havocs, and I've read that they handle the low bass frequencies pretty well like he q's. Feel free to chime in with any responces. thanks

Anyone have custom box dimensions for two 15" ssd?

Ok here is the email I sent to Fi. Just thought Id post it here while I wait for their reply cause they r so busy. I bought an 18" BTL a while ago and need some recommendations on the type of enclosure I should use. First I went to my local shop to see what kind of designs they could offer me and what they thought would work best for my application. I talked to the guy that specializes in enclosures and unfortunately he hasn't heard of Fi before. So I gave him the web addy to get the parameters of the sub so he could plug the numbers into the enclosure software they have. But, the bad thing was, it couldn't calculate the specs for whatever reason. At that point we started…

hello, well i decided to put my (4) Q 15in. subwoofers in the bed of my chevy s-10, standard cab, it will be a blow through, has anyone done this? where can i get some information on how to do this? where i can find the boot to put between the cab and box? well thanks for your help, Brian

Just what the topic says, i need to know the diameter of a BL 12 magnet.

Well I've finally decided to stop being lazy and put my BL in my truck but I ran into a problem while figuring out the port length. I have a 12" BL and I want to put it in a 2.5^2 ft. box tuned to 32 Hz. To do this with 2 4" aero ports they are gonna have to be about 24" I would just do slotted but since the box has to be slanted down on the top and up on the bottom I'm not sure how that would work. So I'm wondering if i could just use one 4" aero or if there are any other thing I can do to make this work. Thanks

So my buddy has the newest version of the 12" Type R that he wants to upgrade. Here's the details, and hopefully I can give enough info. He has an ONX1.1500. He also has EQ'ing at 30, 45, 60, and I think 80hz. We'll make a ported box, but it'll need to be on the smaller side, maybe 3-3.5ft^3 net. His Type R is tuned to 33hz at ~1.5ft^3 net, I know that's not the only way to judge things, but he may want to go a bit lower on tuning frequency, maybe 28-30hz (this is in a 2000 Explorer btw, and any port frequency opinions for this sub are definitely appreciated). This dude needs a tough sub, he can be hard on stuff He wants loud, and if he goes on a trip, he may play the su…

Since my second Q is getting here tomorrow, I thought why dont I start working on the box like tomorrow or Saturday since I have nothing better to do on those days.. So I was hoping that there is someone around here that is an expert at box designs and cutout measurements could help me on making a design and measurements then I'll build it... The box is going to be for 2 15 inch Fi Q's.. Ported.. I would like the subs firing upwards and port firing towards the hatch.. Also, I want it to be tuned at 32hz.. It will be going in my explorer.. so the max dimensions I got: Height: 16 1/2 inches Length: 41 1/2 inches Width: This wont matter, I got plenty of room, but would li…

Here are my details: 2007 Chrysler 300C (Huge Trunk) Fi Q15 (With BP option) Cadence iA7 (1000 wrms @ 12.8?, 1200wrms@ 14.4) Big 3 Wiring Upgrade Listen to primarily Rap/Hip Hop & R&B Q#1- How far below the tuning frequency of a ported enclosure can you listen to a sub without causing damage?? Q#2- I love very deep, low bass! I was planning on a box 3.5-4 cf ported, tuned to 28hz. Is setup going to please my needs?? Q#3- Should I have went with the BP option with my power available?? It is free right now, so I figured it couldnt hurt.... right? I cannot wait to hear this setup!! Anyone posting 140db plus numbers on a single Q in a trunk?? Thanks for your help!!

Any reason my first SSD with D1 copper coils suspension is way looser than my newer one which is about a month older? I know there would be a difference because of the break in period and that eventually the new one would soften up slightly to sit like the old one but the newer one has a firmer suspension as oppose my old one and worries me that it may be a possible problem with my old sub. I got the first sub in february and the second one in march and have beating on them since day one but the second seems to have a better suspension than the old one? Please let me know what the deal is?

I am looking to build an enclosure for my 4 12" fully loaded BL subwoofers and was wondering if 8 cubes after displacement and everything is large enough or too large? I want to tune to 32hz as well. Please chime in with any ideas if you have them?

right now i have a alpine i got from a guy and i dont know much about it its a alpine mrv-t303 but i want a new one and i was wanting to know which kind would be best a link to one online would be great

i finally found a box to fit my beautiful babies! i just need to know whether to buy it or not. heres the catch. according to fi standards: Q 12