Fi Technical

outter box dimensions are gonna be 58" deep x 46" wide x 24" high using two layers of 3/4 mdf all around (1.5" sides) gives me 28.7 cu ft before displacement assuming displacement is .26 per woofer lets call it 1 cu ft my plan is to use six 6" aero's to start with i am aiming to get at least 25 cubes net after port and sub displacement (assuming 1.5 cubes displacement for 6 6" aeros 15" long) i NEED this box to be LOUDEST at 44hz, so i'm guessing tune to around 40hz (not sure) its gonna be only for bass race and shows, i wont be driving this setup around town everyday, but i still will be playing music, mostly rap and not much in the 30-40hz range. dimensions are pretty…

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?

I got a guy interested in buying my Fi Bl motor, but i dont have a clue as to how much to sell it for. The motor is practically new with nothin wrong with it. Any idea what price i should sell it for?

Here is the box i am gonna build to wall my Civic up..Let me know how it should match up with 2 Fully loaded daily 15 BL's. http://www.subwoofertools.com/forum/ported...mp;Fs=&CE=0

I'm trying to order a bl 15 and everything goes smoothly until I hit pay now and it tells me there has been an error and to choose a different payment method. I have Discover card and have used it to purchase since I've tried purchasing from Fi and it works so I know it's not the card. I have E-mailed Fi twice since Saturday night and they still havent responded. I would like to order as soon as possible. I've seen on here that they are behind on orders right now or something, but it would be nice if they could reply to me. Maybe they'll see it on here and help me. Am I missing something that I need to order my sub? Any comments would help. Thanks

I noticed that on the first view of the cut sheet for the bl 15 that it says the width of the box is 33 3/4" but on the other two views it is 34" , is that some kind of mix up or am I missing something?

Ok, I give up. I need some more direction in building a ported enclosure for my Q10. Right now, it has about .5ft^3 in a sealed enclosure and I really love the way it sounds, I would just like it a little louder (or alot haha.) But anyway, this is in an extended cab S10. I have to admit, its alittle underpowered with my Sundown sae-1000d because it wired at 2ohms. So it gets about 600rms. Any ideas? I would like to use tube for my ports if possible, not really a fan of slot ports, but i'm open to anything. Thanks, Mike B.

Hello everyone well I just orded 4 Q15s dual 1 ohm and bp power the box im building will have 2 seperate chambers, with 2 subs per chamber, with about 5 cuft per chamber,is that enough space?this is a sealed box. Also i will be using 3/4 inch MDF board to build the box, I will be putting double layers on the baffles, should I double layer all the other sides of the box or should I just brace inside to the single layers? thank you .................Brian

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?

so im looking to build a new box for the blow through in my truck. trying to think of some new designs to make it interesting. is there any benefit to having the subs angle towards eachother? i was thinking having them facing eachother down the center with plexi on each end so you can see the inside. thoughts?

Hey guys, I have Manny from http://www.trexcaraudio.com/ building my box for 2 18" btls..and I was just wondering if this sounds correct, his calculations for the box: 19" high 40" across 37" deep 95 sq ins port is 13" long (tuned @ 32 hz) and is 11.79 cubes thnks, Freddy

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?

Ok, I am used to building the everyday run of the mill square sealed boxes. I have a 4 door truck with the 60/40 split seat, which I will be removing the 40 section and building a box with an upward firing sub...but I am thinking of porting this one. My question is, can I run ports out of PVC that sit about 2" inside the box and run external under the other part of the seat? Trying to think of some options to possibly install a 15" BL instead of a 12. And the volume of the pvc pipe should be equivalent to the total recommended port in the BL specs correct?

I have a 2003 Gmc envoy, and dont know what i want to put into it, was thinking either 2 of the 15 or 18'' btls and either 2 of the RF t2000 bd or 2 of the t4000's any ideas what would be loud and still sound good?

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

Quick question...I've had my heart set on the 12" Q (after much reading on this and the BL) with my main intentions towards sound quality. Im putting this in my trunk of a jetta and my question is.....is the sound quality going to really be that prevalent through the back seats? Maybe i shouldve gone BL? thanks in advance

I've got a 2000 Frontier xcab and I've got 10.42 cu ft box for 2 18's to work with. I've got a saz3000d coming but I want to know if I should go with 2 BL 18's or 1 BTL 18. I'm thinking the 2 bl's would be louder, but the btl has better Xmax with the x coil option. I don't crank my system all the time( I have a toggle switch so I can shut the sub amp off-It's great for keeping the cops at bay) but when I do I want to incite fear and cure constipation from a distance. I want the hair trick factor and I want it to sound ok, not like complete chit. I'm looking for some serious BOOM for what space I got. It will be in competitions and electrical upgrades will be done. …

I finally ordered knukonceptz wiring today, and it should be here within a few days, and i'm planning on making one last trip to the hardware store. I was planning on screwing the sub in, but i really dont want to anymore because 1. not sure if it will be sufficient and 2. the image of silver bolts coming out the sides of the black sub seems badass So what size (diameter) bolts should i ask for? The hole is 3/16, but do they make a bolt that size? Thanks for reading, Mitch o btw, the sub is 18 bl, doubt it matters though.

first off i have an 18" fi q with the bp power option and a hifonics 1610d amp. its in a focus, and it will b in a 7 cubic foot box hopefully, but my question is that i want to use pvc ports instead of the normal slot port, i used the winisd program, but either im an idiot, or its really hard to use. i put in my t-s parameters for the q and then i set it to 7 cubic feet and put the tuning at 28 hz. then i changed the porting to round and put in that i wanted to use 2 4" ports. it says they need to be 9.25" each. is there nebody out there that can check that for me to make sure its correct? any help would be greatly appreciated. thanx.

I have a 12in fi bl fully loaded and a sundown saz1500d with all 0g wire and stock electrical. My alternator is 110a. Im not sure what I will need to do to see full power from the amp. Would the kinectic 950 be enough for an extra battery in the back?

hi all i was wondering if anyone new the le:, z:, and pe: of a fi Q 18 because i need them to design my box on winisd and fi doesnt have them listed. thanks

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

Im going to put a 10" bl under my rear seats and need to know if it will fit. My box is going to measure 7.5" in height and the bottom of the seat is 9.5" tall. Is 2" enough room for the excursion of the bl? If not should i use 5/8" MDF or 1/2" MDF

Hello everyone It has been awhile since ive las longed on to this accound but now im back. I got a Fi Bl 15" about 3 yrs ago and i would have to say it was the best/ loudest/best built sub ive ever come across. I had my box made by a guy out in Canada. His company name was Pound That Sound. Since i havent been on this website in awhile ive noticed that he no longs makes enclousres.... Ive been looking around for someone to help me with my next built since ive gotten a new car. Im sticking with the BL and i going to have the same set up likelast time, 1 BL 15" w/ hyper pole option. Now my question to anyone who wants to answer is... is there anybody you would recommend for…

Well I just had a box made for my 15" BTL and they kinda messed up...first they made the woofer hole facing up and the ports facing up also....do the ports facing away from cabin sound louder? Also i found out that the box is tuned to around 29hz....how will that sound?????? Will it sound good..will it be loud most also? I listen to mostly all rap just to let people know (i know rap sounds better in different boxes hz wise)...The box is around 4cuft also just to throw that out there. Help is much appreciated thank you. Here's some pics. Inside...one of the ports.