Fi Technical

i want to build a 4th order bp for 2 18 btl and im pretty unsure about how to calculate the port. the sealed chamber is 2* 3,3 cft and the ported one 1* 10 cft. how do i design the port? does 40 hz work well or is that too low? shall i make the port for 5 cft @ 40 hz and then double port area (because both woofers will play in one ported chamber)?

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

How much do they take up as a far as displacement goes..

scott i have 3 18's but 1 only has 1(the other 2 are fine) of the voice coils that works, there d1 coils what should i do

I am running 2 FI BL 18's in about 15.5 cubes after sub and port tuned to 32hz. It sounds awesome for daily and really picks up the lows. I have about 200 square inches of port also. I did 147.3 db on TL first time, then a 152.4 on an audiocontrol meter saturday. Now, I was told I should make my box around 10 cubes after sub and port and tune to 35 or 36hz and it would probably meter better and still pick up the lows. Does this sound right or do you have any suggestions? Oh yeah, I am running 2 sundown audio saz-1500d's strapped on them now. Would it matter with a slot port or are aero's better? thanks for any help

ok i order a 15" fi btl fully loaded with a dual 2 ohm. i have been researching a lil bit and im confused.... i will be using a sundown audio saz2000d for this sub how do i wire the subto my amp ??? should i have order it dual 1 ohm?? im confused///

I bought 2 used UFO motors and they are different motors completely. The one has "cuts" in the side around the slug in the black part and the other is just smooth.plus they seem to be different sizes? I already ordered the single slug recones. Are they OK to use together

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...

just wanting to know if you guys can or know if another company can. thanks!

1- when are there going to be stickers 2-when are you going to make a badass hat?

I'm looking for the best box designs for this kinda of subwoofer? I want sealed because I want clean cut bass and me and my buddy are going be building the box tomorrow and sealed is the easiest build for right know till summer time. So any one have the best box desgin for Fi 10 Q sealed and test on it or pictures would be great. thanks lata

im planning on making my own box for my btl. but im not really sure on the port at all. so here is my question im planning on making a box with about 4.5 ft3 of air 35.25L x 18W x 17H how big should i make the port if i want to tune it to 32hz? like the outside length and width, and the internal length of the port thanks if you have any suggestions ill gladly take them this might of been posted before but the search hasn't worked for a couple days now

Alright before i buy a 10" Bl with cooling i need to make sure i know the mounting depth... the website says 6.25" but i heard you have to leave an extra .5" for the pole vent... in this case it would be 6.75" mounting depth. is this correct?

I need help with box specs. I have 4 BL 15's going in a 2003 tahoe. I want to face them up( at the roof) and have these measurements; 48 wide, 28 high, 36 deep. Can someone give me a box layout or cut sheet with port measurements to make this a winner. Daily playing tuned low 29-32hz please. Thanks in Advance.

I want to build a box for an fi ssd 10. Should I go ported or sealed. I'm leaning towards ported. I could use some box design help and any suggestions. I'm waiting on my brz 2100 to show up until I order the sub but wana get going on box designs

Hello Guys. I guess I could introduce my self before i start asking crazy questions..My name is David, I am a Firefighter, I live in Mississippi...I ordered one of the Fi 15 BL with the cooling option, Flatwind option and Universal setup..Daily driver...I am going to be powering with a Xt4000d Us Amps Amp. I have a Honda Civic and I will be using a ported box in the trunk..I have designed a box and was wondering if you guys that see these designs everyday think this one will do me justice...I used some measurements I took of my trunk and how I would like the box to sit...I will 45 all the corners in the box and build it as close to this as possible...Please look and tel…

How big of box should i use for 2 15'' Bl's? (Space is NOT a limiting factor). Also i want to use 6 inch round ports tuned to 30-35 hz. how many would i need?

Scott we talked about you reconing a DD 2500 motor which has a 2.5" coil. Well i was woundering if you have any coils that will fit an Atomic AP/SPL gap? If so im going to send you an email with some more info. Just wanted to check with you before i picked up these other two motors. Corey

Well here are my dimensions for the blazer: Depth= 25" Width= 37" Height= 22" What kind of options do I have here? Like enclosure volume and tunning options. I was looking to use aeroports if possible... I would love it if I could get a 3-d look lol I suck at designing boxes... thanks

I have a 04 Ford Expedition, i have built a enclosure behind the 3rd row seat, what i have is 2.46 cu ft, I would prefer a sealed enclosure, I know this is large for sealed, but i can shrink it if needed, my question is: should i go smaller ? It is powered by a Crossfire VR 1000d, I listen to mostly music like: Slayer, Exodus, I also listen to alot of classic rock, metal, punk, etc...ever so often I will play a few bass cd's I have from the days I did dB Drag shows. Thank you for your help.

How much does 1 BL 10 weigh? Also, if running 1,400w to one, can i get away with p chamfer or is cooling required?

I've tried searching for this, but to no avail, so here's my question: I am planning to mount an IB315 to the rear deck shelf in my car, but not in the usual drop-in fashion where you screw it in from the top. It will be mounted with the front of the woofer touching the wood baffle and screwed in from behind the woofer. (Maybe there's a term for this, but it eludes me.) What diameter should the cutout be? The specs say 14.125" for the cut inner diameter, but I assume this is when mounting it normally. I am mounting it this way to leave room for the excursion so that the woofer won't touch the speaker grille cloth. I am trying to make as many modifications to my car…

I was wondering if 140in of port is to small for 2 of the Bl 18's? When I build my box the port would be 20h x 7w x 12d that would be 32hz. The box would be 40h x53w x14d. Should they be tuned lower or higher? Thanx Jason

i have a kicker zx1000.1....1000wts rms at 2 ohm planning on getiing a dual 1 ohm 10 inch or 12 inch bl for an 2001 eclipse need the recomended specs for the 10in bl and 12 inch bl.. which sub would be better for my setup and car?

I just bought two 15 fi Q's with BP and a aq2200 to power them at one ohm. Running 0ga and doing the big three also plan on another battery and a HO alt soon. My question is with the box setup,its my first time buliding one and would like to do it right. The max demensions are H 16 W 42 L 28,.(ported) i was thinking around 32 or 33 hz.. But i could be wrong? i want the lows and alot of bass but sound good aswell. my other question is should i put a divider and run a port for each sub or have them both to one port? Any input is helpfull thanks