Fi Technical

I have a 12 " bl and I am about to begin building a new box for it. I want to use the same cut outs posted on here but I want to make the box with the sub facing up and the port facing the back door on my jeep. Does anyone know how to modify the cut out given to make it this way or do I need to make a whole new design?

ok guys i have a RF BD1500, birthsheet 1740 @1ohm, would 2 12" Q's or 1 15" BL be louder?? or is it possible for that to move a BTL a sufficient amount?? and also could you tell me what options to go with please and finally if i get a duel 1 ohm, does that mean the amp sees it at .5 or 1 ohm? and the duel 2 at 1 or 2?

I am looking to build an SPL box for two 15" Fi SSDs with copper coils... I am just going to switch out of my daily box to this box when I go to competitions... What size box, and tuning would be best? I have a '95 4-door Blazer it will be going in.. I was thinking something along the lines of 6ft^3 tuned to 45hz..

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

how many decibals are you you guys hitting with your Fi BTL 18"

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?

Scott at fi car audioi sent me this enclosure.. http://yfrog.com/eq23cuft33hzj Is this a good enclosure? Is it going to be very loud and clear?

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)

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.

Does anyone own a 94-97 Honda Accord Sedan? And if so, do you have a 15'' BTL Sub? If by any chance you do, could you tell me how you made the box for your sub? 5 cf is a lot of space, and my trunk is big but I dont know if its possible or not while still keeping the back 2 seats in... Thanks, -Curt

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"

ok so i got two fi btl n3 12s i went it had it metered on music did 149.3 on music on kick panel and 148.6 on windshield on music they said subs peaks in my box around 33 to 37 hertz which they said is good for low bass is that pretty loud score for that low of hertz? i also have a sunroof that leaks air and roof that shakes like crazy some people say it can hurt the dbs to dynamat or gain so what do u all think

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'm in need of the T/S specs for a 15" BTL (2008 Single Slug) They're not on the website. Building a new box for them and I need to have the specs to plug into my software. Thanks

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 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?

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

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 guys I have a question about the Q series woofers: a 12 Q in a ported box or a 15 Q in a sealed box is what I am debating now given a 2.5 ft box for either one: 1.) which will be louder? 2.) which will play lower? 3.) which will have better SQ for rock?

How does this design look? aprox 4cubic ft

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.

would one of this be good or two for a pair of 18Q's...?any other suggestions on an amp is welcomed. http://www.woofersetc.com/index.cfm?fuseac...Product_ID=1818

I am pretty sure I have neither the room or the amp for 2 of the Qs but I am getting 2 of em for $260 If I did want to change amps and run 2 Q12s, how much air space would I need to do them justice in a sealed enclosure? I have started to consider using both after a day to think about it. Initially I was only going to use 1. So, I guess I have 3 questions enclosure space for 2 sealed enclosure space for 1 ported enclosure space for 1 sealed Thanks for any and all help Jman Oh, the car is my 2001 Trans Am, I kinda want to use the space available on top of the gas tank in the rear hatch and get my ttop space back. If not familiar with the hatch in a 4th gen f-body, chec…

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