Fi Technical

Hi. Has Fi or anybody had any luck with running the ssd 15's sealed. I want to change to a sealed for my next setup. Looking for daily driver/occasional bassracer. Isnt' thomas rourke jr using his ssd 15's sealed? I was thinking of running 4 ssd 15's sealed off my Atomic 5000.1.

I was looking into getting a btl 18” I was wondering which option would be better a dual one or dual two ohm subwoofer??? Thanks in advance

So I have a 10" Q I'll be running about 1000 rms to. What kind of box dimensions do you recommend. I bought a prefab box for $20 because I figured if it didn't work, oh well I'm out 20 bucks. Well, the Q is a little oversized for the box so I figured, well, might as well just build one. What dimensions should I build it if I plan to run the above mentioned power? Is the .6 cubes best or would it be better to have closer to 1?

I had an enclosure built and waiting for it to arrive. I am impatient and wondering what you guys think about the demensions. I got a basic 12" Q D1. Sealed enclosure: Width= 14.75" Height= 12" Depth= 15" Which is said to be 1.27 cubic feet "net volume" I am planning on facing the sub upward toward the roof in the back seat of my truck

Will tuning to 35hz be good for daily driving? Alot of people say that tuning is a little to high for a btl. What do you think?

Recently I built a box that is 47 x 22 x 22 with the port slot it all comes out to about 9.3 cubes, i was wondering if any of the gurus could tell me if that entirely too much volume for 1 18" bl daily driver?

I have 4 15" kicker's in my car right now running off 2 hifonics 2006's. i am thinking about putting either 4 18's into a truck or 2 18's of the trunk of my car. i want to flex and have a lot of bass. i already sound loud i my car but i want more. do you think i am jumping out there to far with purchasing 4 fi btl 18's? and if so what sloutions do any of you have for me to get flex and more bass? I will probably using the same amps or buying the slightly higher rated brutus. Oh just fyi the car is a lincoln towncar

I got two 15 inch BLs and I would just like to know how to tune the enclosure port to 33 hz? Is there some sort of program that could show me how?

ok so one night i was sitting around thinking up some new box ideas. i really want to have my sub facing forward into the cab of my car, and have the port be on top of the subwoofer. so i was doing some concepting and came up with this, Box idea. I just want to know if it will work. i forgot to put notes so.... notes: 1. double baffle front plate 2. round port edges 3. 2.8 ^3 feet of airspace after all displacement 4. 3/4" mdf or particle board used. its going to be firing forward with the trunk sealed from the cabin. thanks, Anton Miller

Like the title says...I'm a noob, I just like alot of bass. so i just ordered a fully loaded BTL and was wondering if someone could help me get some dimensions for a box. The box can be about 35 long and 20 wide and however tall. I obviously want it to be ported. Also, I was checking out the RE calculator..Is that accurate at all? If someone has some box dimensions for a box they built themselves for their BTL I would love to see them. Thank you

Hi everyone, I had an amp putting out 2100 watts at 1 ohm on my SP4 18" (Stereo is currently out of the car for the Canadian winter) and I had a couple questions. This is my first build with a large woofer. I set the gain on the amp using my oscilloscope when I had hooked everything up, and I think it might just be my inexperience with this amount of bass, and I don't really know what I should be listening for. The excursion of the woofer is really high and I think I just have no reference point on what should be happening (coming from two 10" woofers on my first build). I don't think it is possible to over power the woofer with this amplifier, and I'm not getting a disto…

Does the Fi btl ufo single slug motor(the solid slug not the pie) require the risers hwne reconing? i only have 6 can't find another set,so i can do 3 per sub(i have 2 mags and am reconing both subs) Do I need the risers? its for daily. if you know where i can get some risers let me know(if needed)

ok so the ssds are rated at 1000w ... so if you have them fully loaded ... what would that do for the rms power handling?

scott or nick, or anybody else that knows i have a question. i have two 12's that i bought in germany and being the dummy that i am i dropped the box they were in and one of them completely broke the basket all the way around! the woofer is still good i was able to line it up and push down and the voicecoil isnt damaged all the surround and wires are still attached. the speaker looks like it has almost the same basket as my fi 12's is it possible to take the woofer and replace the basket so i don't have to buy new woofers yet?and if so can you guys do it? or can only certain speakers be re-attached like this?

I looked at FI's website and also at the sticky on this site, but still can not find the answer. If you can use a sealed enclosure, can anyone tell me the recommended internal volume? Thanks!!! ryan

have a tc9 motor, want a Q recone and im getting a 10" 12 spoke basket from someone. wondering what is the difference i need to know to know if my tc9 is too shallow or if its ok for the Q coils

I was wondering if the BP option changes anything on the T/S parameters of any woofer it gets done to? Does it lower efficiency? And if it does, what is the point? Does a subs BL drop by having the BP option?

I'm lookin to run a pair of Q 10s eventually but I'm just wondering if anyone has experience using them in a smallish sized ported enclosure? .7 cubic feet to be exact, 10 sq inches of ported, tuned to 30hz...per driver of course. Thanks in advance.

Hey everyone i have an 05 civic coupe and i am wanting to put a 4 cubic foot box in the trunk. Does anyone know if this is possible and what dimensions i should use. I am going ported with a btl 15 n2. any enclosure help or ideas is really helpful. i am building this myself so nothing too crazy.

I want to build a sub for home theater, using 2 Q15s in one sealed cabinet. What modifications can Fi make to optimize the Q15s for home use? I'll need a complete listing (including Le inductance) of the modified T/S specs for my modelling. Ideally, I would want the drivers to be optimized for a sealed cabinet volume between 4 and 7 cubic feet. Thanks.

I am getting some 15" btls. I was curious about how I should get it made. I know I want the p-chamber. I read that if you get the 3rd magnet with no cooling option, this is better for SPL. So, what happens if you get 3rd magnet with the cooling option. This is going to be a daily driver with, hopefully tons of SPL, but I don't want to kill the sub and replace it or fix it consistently. So, which option with these should I go with?

DB Drive PL15D2 15''? it an older sub i cant find very much info on it but this is what i found (sorry since its not much) http://www.shopping.com/xPF-DB-Drive-PL15D...S-SUBWOOFERS-15 EDIT: heres a little more info i found Features 3" dia high temperature 4-layer voice coil Extreme excursion motor structure & suspension Multi-layer treated paper cone Layered UV treated foam surround Dual spider linear design Strontium (SR) magnet with attractive rubber boot design Attractive matte black anti-resonance die-cast aluminum basket Integrated tinsel leads for high excursion Machined push-button terminals Rigid dustcap design 15" 2000 watts Dual 2 ohms voic…

I just down sized with my new vehicle so im thinking of running 2 15" Fi Q's sealed to help conserve trunk space. I want to keep using my T2500 but my question is will this be too much power to run these subs sealed? i plan on using an enclosure that is approximately 3^3ft per chamber. The car is a 2006 Impala SS. Any help would be much appriciated. Thanx.

i need a price for an re xxx 15" dual 2 recone. also how much for a 12" recone for it. i need this price hopefully today. i dont want to call scott since he is so busy if at all possible. thanks!!!

i have designed a 7 cft enclosure for an 18 btl. the volume is with woofer displacement. how do i calculate a port to 30 hz then? is this ok?: 4,72" * 19,69" * 29,92"