Fi Technical

I tried to get the most port area possible using an "L" slot-port. The box is 39"x18"x18". I wasn't paying attention to this when I designed (threw together) the box. Fi recommends 12-16 square inches of port for every cubic foot of interior volume. 48-64 I have 74.25 square inches of port and 44" length giving me a tuning freq of 31hz. And here's my question, should I (could I) do something (short of taking the box apart) to reduce port area, and raise tuning? Specifically, can I cut another 3/4MDF piece to fit snuggly in the port to bring the width from 5.4 to 3.75...or similar?

first system about 90% finish, would i need a dual 1 or 2 in this situation, dont wanna go 1 ohm strapped at all since they dont make HO alts for a 2002 deville yet, still looking... got a chamber t line built by rich that i,ve had for about a year now, 2 1500ds, 100.4 coming temp. highs i have arc audio fd6000 up front and kenwood excelon coaxils out back on a aura rpm4200 4 chan. clarion max675vd II for the headunit and a clarion equalizer. kicker kyperflex, kollosus 4 guage 4 chan on the way. no alt but i was told that the alts in the 02 devilles and dts really put out about 180-190 amps as told by ohio gen after they tested a few, also adding a powermaster also. thi…

how much would it be to recone a FI BL 18'' sub, like send it in and get it done? thanks chop

This is for my buddy thats in Iraq. Im doing all of this for him while he is gone. The vehicle in a 2001 Chevy Silverado EXT Cab. He needs the back seat due to a child. http://www.supercrewsound.com/shop/detail/11/242.htm thats the box we decided on. He wont have to raise his seat any and it will fit no problem. Now the question is should he get 12" or 10" FI SSDs. if he gets the 12" they will be in about .71cuft each and if he gets the 10" they will be in about .73cuft. The amp is the Kicker ZX1500.1. He listens to rap/rock/country you name it he listens to it. What would you guys suggest? Would polyfill help the lack of space for the 12" Any help would be great guys.

I didn't think that I'd do this but. Heh, it happens. I'm a complete boxbuilding noob. I know how many cuft Fi recommends and how much port area they recommend. But, I've tried my hand at it and failed. But anyways, Here are my max specs. 49 inches wide 27 inches deep 16(I may be able to squeeze 16.5 out of it) inches tall I'd like to do the port either on the left or in the middle. But, since I have seen/read/heard loading problems I'm pretty unsure as to what to do. I may be concerned about being loud but i would much rather have my woofers happy and lasting longer. I love reading posts about box tuning and loading. Since that is probably the only area of car audio that…

i need help with measurements for a enclosure build for two fi bl 12 tuned to 32 hz. i can build this enclosure up to 4ft wide 18in deep 18in tall im looking for this to be a 5 cb ft volume... thanks for your help i need all measurements and slot port width lenght measurements... again thanks...

Can anyone help me with a link or can someone help me design a tuned enclosere for a single Fi BL 15 with a max height of 17 inches? and a max width 36 inches? my first box for my first system.

I just got my bl's today and had my local shop make a box . The dimension's are 4.5 cuft 43=wide 19=deep 15=height port is 4=wide 12=height and he said its tuned to 32 htz. does that sound right? I am currently running a kicker zx 1500.1 to them, my question is, do i need to let them break in or can i pound on them? I know im way under power, but im not sure.Any and all replies are greatly appreciated.

I saw NDMStang65s post and how he hit pretty good numbers with a single 18" BTL and a hifonics bxi2008d. I'm getting a set-up like this and I was hoping ( talking mostly to NDMStang65) If you could hook me up with a good box design to let the BTL get loud Thanks! Cody

what's the sub displacement of a btl 18 tripple stock magnet? thank you

Need them in dual .7 Shipped to 32765 - Oviedo, FL

Hey guys, I'm looking to build my own vented enclosure (my first) for a 12" BTL fully loaded. I have looked at the box builder programs, but am having trouble. Would someone please design on for me? The maximum dimensions are 15"H x 34"L x 30"D. I plan on making it double baffle, and adding a magnet holder. But I guess before finalizing a design, I was thinking that it should be tuned to 35Hz, what do you guys think? Thanks for the help in advance, Justin

So, after much nagging, my old lady talked me out of doing the pacman design with 4 15" BTL's in the bed of my truck cause it would take up every inch. So, will I be able to put 3 15's straight across the bed of my truck so that I have a little room to put stuff towards the end of the bed in my truck. Or will I have to go with two BTL's. 6'6" front to back 5'3" wide 4'1" wide between wheel wells 1'10" from one end to the wheel well 1'8.5" from other end to wheel well These are some dimensions I got from one of those custom fit rubber mats for the bed of this truck. I think the bed is about 21" deep. LOL, my old lady thanks you..........

Well my computer crashed and I lost the t/s specs I had saved into win isd for my older model 15 inch Fi Q dual 2. I am throwing around new enclosure ideas but the specs for the new Fi Q's seem a bit different. When I use the specs for the 2010 Q it suggest a ported enclosure where as the older one always suggested sealed. I am sure the specs are reasonably close but just the same I would like to get the t/s specs for the older fi q 15" d2 model if at all possible. If anybody could help me out it would be greatly appreciated.

Just recieved my FiQ12" need some help on box ideas measurments.. etc.. I drive an 06 Nissan Xterrra. I would like to build a box the slants at an angle "towards" you following the countour of the back seats to.. (larger on the bottom , to smaller on top with the front being straight , facing the back) if that makes sense...Ill post a measurement of the height of the back seat at the angle but if any one is an SUV owner out there you know what i mean... i hope...that makes sense... I am assuming an angle on the back of the box doesnt make a difference.. its the amount of air inside.. I also need some recomendations on terminals for the box.... I am open to alternate id…

can anyone tell me how many watts i should run to a fi bl 18 and wether i should go with a dual 1 or dual 2 ohm.... and also what is the best hifonics amp to run it on?....

I have a 2004 F150 super crew. I dont want a blow through and I am thinking about taking out the middle rear seat and putting a center consoled 15" there. I currently have 2 10" Qs under the back seat but I wanna go louder so I need someone to help me design something width needs to be 17" - 17 1/2". and height there is plenty of room id like to keep it under 30" and there is enough depth for 30". Iv been messing around on the rockford boxwizard and im looking at possibly a wedge type design with a flat on the back top of the box with aero ports and then the front facing sub.

Can FI do this to my Conecpt PT's? Sorry that i posted this but im sure someone can answer me faster then emailing them...

Hi all. I'm about to order a btl 15 d2 with cooling, I heat ring, and high Xmax coil. I have a hifonics bxi2010d. I came up with this box design, but I want to make sure I haven't overlooked anything important. Will I get port noise or any other bad stuff? Its for the trunk of a 97 ford thunderbird. With the current design I have, the box would be lying with the port and the sub facing up toward the rear deck. I could change the dimensions slightly, any comments or suggestions would be appreciated. EDIT: link to image was broken

what do you think. Will face rear of 02 grand cherokee. 1200rms amp. 6 cubes. tuned right around 33.5ish 4.5in port width 39.5in width 18in height 20.5in depth thats only gonna leave me with like .5in between port and sub, sub and sub, and other side of box. (including .75in MDF) concerns/recomendations

By the end of next week I will test the sx 15 with dual 2's, and the Bl 15 with dual 2s, and p chamfer. I will test them both in a 3ft3 enclosure tuned around 49hz. Which do you all think will be the Louder sub? I'm not going to post the results, out of respect for the two companies.

has anyone use these before to build a box and how was the out-come? and if not would yall use them to make one?

im trying to stay with an enclosure that is 3cf or less and trying to decide whats better, 2 12s sealed with 3000watts (buy a new sundown 3000 amp) or 1 12 ported with 1500 watts (keep my mtx 1501d)? if the sealed subs would be louder, how much louder? last option is 2 10s ported. looking for LSQ, basically the loudest set up i can get with the space available. appreciate the help!

Hello all... after a lot of questions i have ordered my last big toy...a FI BTL 15 full loaded (dual 2ohms) i have ordered a rf 20001bd too .....but at this time it is backorder :Doh: :Doh: so what is the best amp for this sub? new hifonics 2007d ? orion 2500d ? sundown 3000? please helllllppppppppp me

i did a search for this and the posts i got were confusing. i want to know the wiring options and ohm load for 1ohm dvc speakers; for one and two woofers. so ill know wether to get dual 2 or dual 1 when i order my ssd's. thanks for any info that can clear my foggy head.