Fi Technical

about to drop in a pair of d2 bl 15's loaded for daily to replace my d1 q's (to go a little easier on my american bass vfl 200.1, thing smoked on me before and cost over 300 to fix) in 8.2 cubes @ 32 hz. was pushing the q's to their limits, about 1300 watts each, and raising the load to 1.4 ohms (3kw at 1 ohm) i'll probably be giving the bl's about the same power, maybe a tad more. can i expect the bl's to be louder across the board? will they still pick up the lows as well as the q's did or will i need more power to get that low end extension?

Well i built a sealed box with .6cubes net, its not the output i was expecting. I plan on going to a ported enclosure. its going in a 2008 frontier and there isnt enough room to have the sub and port up. the sub will be up and the port will be toward the passenger side. 1. port to the driver or passenger side? 2. i read the sticky and it said .5 - 1.2 cubes is it .5 min and 1.2 optimal or any where in between there will work? 3. should i do a longer narrower port or a shorter but wider one? sub 10" Q amp - hifonics 1208 (1200w @ 1ohm) (yeah right lol) if i get 1000watts out of it her happy max 15" high max 11" wide max 12" deep

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 have a guy waning to buy my SP4 so im considering an upgrade. the low end bass of the 29hz box has grown on me and i want it louder. my thought was to keep my 8.2 cubic box that i have my SP4 in and use that for a Team 18. I currently run a single KX2500.1 (2005 model) for my SP4. I was thinking of setting it up with a second KX2500.1 and buying a dual 2 ohm T18. then running 1 amp per coil, throwing my factory alt back into my truck and bracketing my mechman next to it. taking my 3 AGM G49's and isolating them along with the mechman into a dedicated power plant for the stereo and letting my factory alt handle my normal vehicle needs with a couple cheap lead acid batter…

Alright well im going to be getting 2 18" FI BTL's reconed(The older version) and was wondering what kinds of new options I can get like diff dustcap or diff tinsels stuff like.....that Id want carbon fiber if posssible and also what are the prices on diff options...any tips on packing for shipping?

hey i have a question for anybody who can answer, i am installing a 18 fi bl in my 01 sonoma my intent is a daily driver with occational spl comps. My box is 48 wide by 24 tall by 13 deep that comes out to about 6.9 cu feet i believe but i dont know how to figure my port size ? Needin some help

Hello everyone. I am receiving a 12 inch Q for Christmas which I am rather pleased about because Fi woofers are class... I was wondering what I should do about a box, the woofer is going in my bedroom instead of a car but all the reviews I have read about the Q lead me to it. It will be used entirely for music, rock, techno, a little pop, and perhaps some rap to show off a little. The room is about 8x10x8 with a chunk removed that is about a 18 inches by 3 feet for a closet, so not a terribly large room. One of my questions is the great sealed vs ported debate, which would sound better in this application. The Q will be more than plenty in a room this size either way. I…

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 had a box designed by chris at fishercustoms, and here is what he came up with: The total Net volume came out to be 1.8cu ft exactly, a 1.74" x 14" port tuned to 33hz, 13.53 sq in of port per cu ft, and I have a couple questions: 1. Is that too small for a 12" Fi Q? They do recommend a minimum of 1.8, but i'm worried this box won't make it sound good because the net volume is too small. 2. What happens if the box is too small? 3. Whats the difference between having a larger box versus a smaller box? Like having a 2.2 versus 1.8? Most of the videos I see online of this sub have a box larger than 2.2 cu ft, and their car is basically falling apart. Any help would be gr…

I am in need of two 15" recones and baskets with screws for my RE SX's at the moment, I will need two more at a later date. I need dual 1's with some slightly bigger tinsel leads, not the spl ones from the btls, if that is posible. I need the total price for all of that shipped to 47987. Thanks; Andrew

I'm going to run 2-18'' BTL's each in there own box with 2500 watts to each sub. I would like to know if 6 cubes each would be good for the power that i'm running or should the box be bigger to reach full xmax? And do you have to add the ports size to the size of the box or not? I know you add the sub displacement to the box so do you add the ports to??? Want to run 2-6'' Precision Ports pre sub tuned @32hz. Does this sound like it would work? Want LOUD DEEEEEEEEEP BASS. And what is the disp. of a fully load BTL? Any help would be great.

scott, been sending some email this past few days, did'nt get any reply is everything ok? pls. check your email...thank you

for 15" btl fully loaded. i cant get my comp. to take a screen shot, but the dims are... 4.1^3 45^2 inches of port ~33 hz going to be double baffled. but i have a Q, how far away from the back wall does the motor need to be, sine btls dont have a pole vent, i wouldnt thik it would matter as long as it isnt touching, am i correct?

How are you guys/gals fitting such long ports that are necessary for the Q12 into not very large boxes (1.8-2.5 cuf). I am designing a ported box for my single Q12. (2.2ish cuf @ 32ish hz) I am looking at a 6" port that is around 30 inches long. Is everyone using slot ports with multiple bends? I am not looking to compete or steal any secret designs. I am just looking for suggestions of what other people are doing to port the Q12. Thanks.

I am trying to construct a ported box for the driver’s console of a 2007 Malibu VLX wakeboard boat. I would like to install an Fi BL12 and push it with a Kicker 1000.1 amplifier in 2 ohms. The dimensions of the box I plan to build are as follows 18” wide x 18” deep x 18.5” high. I am going to use a PSP (Precison Sound Products) port tuned to 32hz. Is this box size adequate for this sub? Will this sub be ok in this environment? (ie. 100% humidity, maybe a few drops of water and a little bit of full sun). Any tips and advice would be much appreciated. I am use to building only sealed boxes, so ports are totally unfamiliar territory for me, but I’m willing to learn. T…

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

Anyone know the "Le" parameter of the Q18 dual 2 ohm sub? Thanks for any help.

here is waht i have to work with... 11" tall, but that doesnt leave much excursion room, so maybe 10"? 32" length 16" deep im thinkin about a SSD 10 or 12 ... idk if 12 can make it in the space... woofer should face sides front or top, probably a must that its on top anyways because of hieght limitations.. i want to only be able to see the carpeting, no components or sub showing.. will be 500rms for now, ill get a 1000 sundown soon enough.. its for a 63 impala.. so help me on ideas friends.. thanks!

I am about to purchase a single SSD 12" to pair with my Rockford Fosgate T1001-bdcp. The amp is 1 ohm stable, but the birth sheet shows only about 50 more watts when compared to 2 ohms. May I please ask whether you recommend going d1/serial to 2 ohms or d2/parallel to 1 ohm? I will be going with high QTS/sealed and cooling (personal preference). Thanks!

Hey i Tested the coils it came back one was .7 normal and one read 0 no idea why its just one but thats what happen so i was wondering shipping from 77632 to yall and back total cost if its a recone that is! Thanks, Teddy

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

How much power should i put on a BTL 18 if i plan on running it for fairly decent lengths of time, 15-30min, at high volume. Is 4.5kw too much for that kinda usage... It'll be in a rather tight ported box

Is this possible I can't really find the tech specs of the two anymore so im not sure if there are any size differences between the two

This is to FI, What are my options on reconing a TC 3hp motor to a 18"??? I need it reconed to a dvc 4 ohm. What parts will fit?? Could you pm me a cost of the recone if I send it in thanks, Joe

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