Fi Technical

for those do-it-yourself boxes, where do you get your wiring terminals and carpet? links are helpful, thanks in advance!

My enclosure is strangely shaped because of my spare tire, but it's 4 cubes @ 32 Hz with 58.5 sq. inches of port area. My Q15 has the BP power option and I'm powering it with a Sundown Audio SAE-1000D. My headunit has 2V pre-outs and the 1000D has a 0.2v - 6v adjustable input sensitivity, so my gain is about 3/4 of the way up. I have an Excessive Amperage 250A alternator, big three with 1/0, 1 group 65 Duralast Gold battery and 2 Kinetik HC1800 batteries wired in parallel with 1/0 gauge... Does it seem like I'm not getting a lot of excursion? "white girl" by U.S.D.A. vid 1 "hood nigga" by Gorilla Zoe vid 2 "choppin' blades" by UGK Vid 3 Vid 4 Vid 5

Im running a T20001bd to each fully loaded BTL.. how much output would I lose if i ran each sub in 3.5 NET compared to 5 net.? Tuned to about 32hz..

hi i need to rebuild a couple tc9 based eclipse subs and i was told this was a good place to look. how can i go about purchasing a recone kit or two? they are 12" subs dual 4 ohm coils. im looking for something that can hopefully handle more power than the eclipse coils thanks in advance chris

I am looking at getting some Q's and I know that 2 12's will fit in my trunk sealed but I am not sure about 15's. How big would a sealed box be for 2 15 Q's?

I have 2 mtx thunder 7801d amps and was wondering if that is enough power for 1 of the Bl 18's? If yes what options should I choose for the Sub? I know I'm going to need the daily option for sure, but after that I'm lost.

hi im a proud Fi owner and was planning on upgrading some time in the near future.. i have a BL right now and would like to upgrade to a BTL... i had a custom enclosure made just for my BL made to all Fi's specs... i was wondering would it be possible to reuse this box for a BTL?

whatup folks. i am going to run a second battery in my car i know that 0gauge is the best but can i get away with 2gauge? i already have the whole car wired with phoenix gold pos and neg 2 gauge. would hate to have to buy all new wire if i dont have too. i am only running us amps 400, and esxq404 four channel amp with soon to be ssd 12's with copper coils. im thinking this would be okay but im not sure never ran two batteries before. sorry for all these questions but i m just now realizing that as loud as my systems have been i could get more out of them since ive found forums like this to help. thanks for any help you guys can give.

alright so my question is what size and what would be the ideal tuning for a box in my truck. I mostly play a mix of rock and rap So what would u guys suggest would sound best i have a little over 11 cu ft but dont mind doing smaller just want would be best for my music So i guess im going for LSQ i have had no experience with 18s so any help would be apprciated

I got a pair of Q15's yesterday. I put them in the box which is 3.5 cubes tuned to 28hz and they sounded different then anything else ive ever heard. As much as everyone praises the low-end ability of the Q it seemed to me that the higher notes(40-60hz) sounded louder. The low notes made a popping sound that sounded like it might be hurting the speaker. I called someone who runs the ssd series and he said he had the same problem. He told me to tune them to 32hz and it would fix it but the whole reason i wanted the Qs is to hit lows. Should i give the speakers some time to break in or is anyone else having this problem. 2 Q15s 2 MTX TA81001 Thanks Keith

I have a mazda ext cab pickup and have about 12cu feet to work with. I really want the FI Q18's. I have never owned a pair of 18's and that's what i want. I want to kind of do what Steve Meade did in his honda and build the enclosure inside of the truck. If i can't do that this is the space i have to work with 30in high x 49in wide x 14in deep. If i built inside i think it would be a little bigger. I was wondering if I can't fit 2 of the Q's, should I just use 1 of the Bl's?

I am in the process of building a box and am thinking of using polyfill. I just wanted to know if polyfill works the same with ported enclosures or is it purely for sealed boxes only?

ill be ordering the 12" ssd's soon and temporarily they will be going in a prefab (i hate prefab) dual twelve box with the port in the middle. 2cuft per woofer. when i put my other woofers in there they were loud as f**k but when i played a song like bass mechanik moonstone that has a 20hz bassline they bottomed out and almost broke the voice coil. heres my dilemma i have been seing a lot of people use the boxes that are similar to the box i have exept the port isnt in the middle of the woofers its on the side.ex: http://subwoofertools.com/forum/ported-box...mp;Fs=&CE=0 all of the vids ive seen they either burp the woofers or they play some crap from jeezy, never any…

i got an Fi BTL 12 and i would like to know what the best way about mounting it in the whole would be.... what kinda screws...coarse thread, t-nuts?

need help guys ..i cant decide what to get ...here is a little info,i have a trans am and the box i going to get that fits the rear well it has 1.92 cubic feet per side ...i was going to go with 2 15" or 2 12" ....the amp i am going to use is a sundown 1500d the 2-12" i was looking at are FI SSD or FI Q and the 2-15"are fi ssd or fi q...its a sealed box ....for that amount of air space (1.92cu ft per side) what would give me the best bass sound...thanks

I am going to build a box for a 12" bl or a q. My interior box volume (after subtracting speaker displacement) is 2.1 cu. ft. What kind of port and what dimensions do you guys think I should use . I haven't decided which sub I'm gonna buy yet. Also feel free to leave some feedback on the two subs (is there really a huge sq loss with the bl or is there a substantial bass level loss with the q)

Hey everyone, I have a pair of d1 12" Q's. One of the wires coming from the cone going to the terminal on the sub snapped... and there seems to be some sort of burn on the wire (its blackened at both ends). Any explaination on why this would happen and any way to fix this. I know i can solder the wire back together but it just looks like it was too short to begin with, when i connect the two pieces of the wire together and press down on the sub it looks as if the wire was never long enough and just kept pulling on it until it finally snapped... Also if i can solder it back together should i add a longer piece of wire in? and where do i get this wire??? I dont know if this…

can one of the fi owners please respond. i have 4 kicker cvx 15's (1000 watt rms). i have about 13 cubic feet of airspace. can any of ur subs outperform my current setup.i have 2 hifonics brutus (2000 watt 1 ohm). i want it to be more rumble inside the car. if so please tell me what. if not please tell me so i can keep it moving. i am kinda tired of this email stuff. i need a number or something cause i send u guys a 3 paragraph question they send u a 3 word response. come on slim. look i just need some direction. i am just tryna accept the fact that a lot of these guys are jumping out there and saying all types of stuff about fi. well can i get some direction from the ow…

got my sub couple of days ago and need a design. its going into a 99 cadillac escalade so theres plenty of room... can you guys help?? listen mostly to heavy rock and some rap.

so will 3 ssd 12's work in a 5cf box tuned at 30hz work? i have a thing from subwoofer tools.com right now im tryin to figure fit the subs on the box design on google sketchup heres the link to the box for 3 ssd 12's i guess http://subwoofertools.com/forum/ported-box...mp;Fs=&CE=0

i have an 04 honda accord sedan which im going to put a Fi Audio 15" Q Sealed Box sorry i dont have trunk dimensions... what do you guys think will i have any problems? Design me a box! anyone pleaz

Good to go? More stats: http://www.subwoofertools.com/forum/ported...mp;Fs=&CE=0 Anything else to change? I'm gonna buy the MDF this weekend.

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.

i need a box design for 2 18" btls. i have enough trunk space but where the port and subs would fire kinda confuse me. the dimesions of my trunk are 27x42x25. would that be enough to run 2 btls with port area? can you even run the btls sealed. i never see anyone talk about sealing them. please help cause i am tryna purchase these subs and keep it movin. hallelujah holla back.

I ordered recones for Konaki motors, if you can remember, I have the thread up in the General Fi section, anyway, I was wondering what type of spiders and coils you used in the recones construction. It looked to me like 3 spiders were used and the coils were copper flatwind. Also would like to find out what you guys would estimate the power handling (rms) of the sub would be with the soft parts you sent me. They are seeing probably 1200 watts each, which I am sure they can handle fine, I do not plan on upgrading my amp EVER, but I am wondering just out of curiosity what the rms of these things would be.