Fi Technical

im going to be getting a 15 Q soon going to be powered by a sundown 1200rms at 1 ohm and i need a box could someone suggest some box sizes and tunning i want it to be loud hit them lows hard

iam building a box will 41 INCHES BY 21 INCHES BY 22 " be fine for the sub and how many cubic feet would that be thanks for any help !!

Hello ! I am from Germany and i bought a BL 10 ! Now my Question : Which volume must have the box and how long must be the port ? I hope you can understand what i want to know ? I cant find some informations about my problem ! Sorry my English ist not very well ! Nice greetings !

I have a Fi BTL 12 running with a rockford fosgate amp but I've been wondering what I'm supposed to set the frequency knob to on the amp near the gain.I think it goes between 80hz-300hz. I dunno.any info anyone?

so, i got an enclosure built for my 12" BTL (single slug motor) but the magnet refuses to fit into the cutout. i was wondering what the cutout diameter would make it fit. i can't trim the cutout because its only enough for the cutout itself since the box is 14"H with only .25" clearance on the top and bottom.

Im going to put a 10" bl under my rear seats and need to know if it will fit. My box is going to measure 7.5" in height and the bottom of the seat is 9.5" tall. Is 2" enough room for the excursion of the bl? If not should i use 5/8" MDF or 1/2" MDF

which amps should i use for a 18 blt fuly loaded dual 1ohm's?

i was wonderin if i could use two of the same amps 1000rms to each [email protected]

ok built my enclosure, 40w x 15d x 10h external dimensions w/ 3/4 mdf port is 10h x 4w x 21l im getting different answers on cu ft, what did i end up with when all is said and done ? ive been out of this for so long i feel like an idiot with all the questions, but you guys are a really great help. THANK YOU

hey all i just ordered my first fi btl 18 . i choose all the options that were availible for it so i guess it is fully loaded right? anyways my real question is how THE heck am im going to fit two in my civic ? i know most might say i prob shoulda thought of that first but i will find a way to make them fit . my best idea yet was to actually take out back seats and extend the trunk into the car so when you look into he trunk it looks like its reall deep. than build THE box into the trunk extension . basicly you would open the trunk and the woofers would sit right were the back of the seat was originaly and the box would be ported on the inside behind driver and passenger…

i have 2 12inch BTL's and was wonderin what the best cuft and hz would sound the best. i listen to lots of rap and like my music low and loud. also how much sq in of port should i have?? should it be a port for each speaker or can it just be a big port in the middle?? i have a drawing that i like but it isnt tuned right. i'll try to get a pic up of it. if someone would like to email me or pm me my email is [email protected]. any help would greatly be apreciated. also someone was tryin to tell me that btl's are not good daily drivers that they wouldnt sound very good...any advice or opinions would be greatly appreciated. thanks

IAM LOOKING AT BUYING SOME FI AUDIO SUBS 18'S I WILL BE GETTING BUT IAM HAVING A HARD TIME FIGURING OUT WHAT WOULD BE LOUDER 2 SSD 18 INCHFI SUBS OR 1 BTL FULLY LOADED ANY HELP ON THIS WOULD HELP ME THANKS!!! ill be using kintek batterys in a ported box in a crown victoria what iam looking for is for people to hear me far away as well as shakeing the hell out of my car lol which do u think would be best 2 18ssd or the blt loaded18

I was wondering how much it would cost and if it could be done. I want to turn my 18" btl into a twelve. Can I just buy a basket and recone or will the motor need tooling? thanks for any help.

In another fourm Im being told I need to change my tuning frequency from 32hz to around 60hz. Im running a FI q 12 d2 with a Crossfire VR 1000d. It would be for outlaw spl only not daily. FI doesnt recommend going outside of there suggestions, could any harm be done to my sub by tuning it this high ? Would there be any gains ?

I am going to be building a box for my 2 15" btl fully loaded, I am curious wat of the two would be the best and how big should i cut/make the port, Also let me know if I mite need to make the box a lil bigger. ( i am also using 3/4 inch mdf) And should I have a baffle in between the subs or would one large box be best? Box 1 height 19" width 39.5" depth 23" Box 2 height 16" width 39" depth 35" Any help would be appreciated.

Hy, I need help with my new box, as the topic title says. My car is a Mazda3 hatchback; the sub-amplifier is USAmps XT4000.1 (on it`s box it says "CEA" ), I don`t know if my version is overrated or will provide 1500W@1ohm. I want my Fi to play loud, and as low as hell . I`m thinking at a box tuned at 28-30hz. Can anyone help me with a project? I`ll measure my trunk and i`ll post here the max. possible lengths for the box. PS: I`m gonna use the stock HU with a MTX Re-Q sound procesor...

I was interested in the AA Carbon fiber mids. will they fit in a 6x8 space? Do they have an adapter ring. Plus do they come with a passive crossover and tweets... Right now I have the Pioneer 720PRS components which are pretty nice and have been reviewed very well. Have you heard them? If so how do they compare? And prices.. or local dealer to 11703? Thanks. Mike I tried to send this PM but it wouldnt let me

are there any differences in the 08 and the 09 BL models? i would love to add another 15 but concerned about putting two different subs in the same box, are they any different to the point where you couldnt put them together in the same box?

I have a 94 cadillac fleetwood I am trying to find the best way to put 2 18" btl fully loaded in the trunk I have 2 t40001d rf amps and enough juice to run it all I just need to find out wat everyone thinks will be the best way to due it. Also is it ok to put the ports on the outsid of the box so that way i can keep the cubic foot in the enclosure at the max

12" BL D2 Daily Flatwind Cooling @ ~1200RMS. 2.25cuft @ 32Hz. Just wondering what the subsonic filter is recommended to be set at. Right now it hits all the lows with ease when set at ~25Hz. (Soundstream TRX1500D)

Looking at the BTL SPL vs Daily Option.. I would like to use a pair of 15"s mainly for SPL competitions, BUT i would like to squeeze JUST a song or two out of them every once in a while.. They are not to be used as daily play subs.. my question is, would i be able to get away with playing music for a short while with them, with the SPL option, or would i be better off using taking the daily option instead.. thanks

I have 2 D2 18inch Btl's and 2 SAZ 3000ds I need to know how to wire the subs down 2 ohm, because i'm strapping the amps together.

so i want to keep as much of my trunk as possible, so what im woundering is. My old box was like a perfect square, if the new box is the same cubic feet, but more rectangle than square so it will stay in the rear of my trunk. How will that effect the sound?

I'm thinking about buying 2x FI 12ssd's and was wondering what amp would be the best choice for these subs?

I have a dual 1 ssd sub with the copper coil option in a 1.1 sealed box powered by an audioque 1200d. And im wanting more deeper bass and louder but trying to keep inline with my sq setup. Would a sealed enclouser with more power? Do I port the sub and keep the same power? If i would port the box what cubes would u guys recommend? The space want to put it is 15.25H x 12D x 31.5W these numbers dont included the thickness of the wood and the double baffle. I could put it in a different place if i cant get it to fit.. And What freq would u tune the port? Thanks for the help in advanced.