Fi Technical

hello i purchased an 18 inch btl fL in june and 1 tinsle lead has broken off... i resoldered it 2 times and now its too short.. i was wondering how i could go about doing this now. do you guys have a tinsle lead kit i could buy from you guys or something, or would i need to buy a recone kit... if so i would like to do the the cheapest option. please help thanks in advance

Just like the title says, I'm planning on getting an Fi Q12, dual 1 ohm with BP power. I was planning on running it off of this at 2 ohms. Will this power it properly? Also, will I need to do any electrical upgrades such as the big three upgrade or a red top battery under the hood? As of now, I'm running off of my stock alternator which puts out 120a and my stock battery. Thanks for the help, -schmizzle

Hi yea i just got my 15" BL.... Thank you Fi Audio for a nice and fast delivery.... Now my question is, for anyone who owns one of these u kno how heavy that thing is so i wanna kno what kinda screws should i use or bolts, i dont wanna use basic screws i feel that this sub will just break them like toothpicks.... I cant wait to hear this bad boy in action Thanks

alright guys i have just ordered a 18" btl 18 dual 2 ohm and was wondering what is the possible wiring options that i can run it at ( what ohm ) thanx.

Am planning on using the Hifonics BXi2008 on 2 15 Fi Q's, would BP be necessary?

Is 12 cubes net tuned to 31hz too much for 4 BL 12's? How about 140 inches of port?

what would be a good box for 2 15" bl series subs.

Never mounted an amplifier right next to a woofer before, so it i tried it. Currently I have two 15" Fi Q's mounted invertedly behind the back seat of my car. There was just enough room to mount the p450.4 in between the magnets of the Q's, which positioned the amp perfectly at the reach through in the back seat. Doesn't seem to affect any perfomance aspect of the amplifier, so I guess all is good there, maybe i got lucky, or maybe i'm just sketchin. Next item of business though, What about mounting batteries too close to woofers? Does it matter? Talking kinetiks here too, not some cheap lead acid. I wouldn't see why this would be a problem, but I learn new things al…

I'm pretty sure this isn't possible but, I was wondering if the Q series was universal. I have a Q10 D1 coils paired with a Sundown sae-1000D wired at 2ohms. I know that some of the subs you can change with a recone. Otherwise anyone know some magical way to get a 1ohm load on my amp haha.

Hey guys, I was running down some information to do a build for a buddy this weekend. He's looking to do a modest setup with 4-500 watts of power to the sub stage and would like to go with a pair of 10's. I showed him the 10" X's which he was very interested in after listening to my Q's he's quite impressed with Fi. One thing I noticed both here on the forum and on the website is that there's no Tech specs for that line. It's easy enough to post up here or send an email asking about the optimum tuning, enclosure size, etc. which we'd like to know, but I figured I'd just go ahead and ask when you might be expecting to have something up on that information? Also, I thi…

i have a budget of $500 for an amp can anybody tell me what would be better for a 18" bl and 18" btl i will appreciate any help from anybody. thanks, Jose

like the topic says im experimenting with my RE MT to see which coil amp combination will work best, so I would like to know thanx guys , and is there a longer version of the original dual 0.7(actual quad 1.4) coil ?? im in dire need of xmax to get louder... im hearing slapping when i get that sub moving alot( could i be bouncing off the dust cap? I dont think im bottoming out)... last time i ripped the coil right off of the spiders (quad stiff) that was with 4 ab 500.1 gain all the way down ( only got them to produce 75xx watts before sub exploded)or should I be using a different basket with 10" spiders? btw this is a 15" with 12 spoke basket

I'm looking for someone (Scott? Nick? Just anyone that knows what they're doing) to help me get together a box design (cut sheets, etc)... I plan on running the Q for a little while in a sealed box I built that is right at 2.6 cubes (after sub displacement), but want to build a ported box later so it will hit the lows better. I have no problem with building it, that is easy for me, I just need a good design that is tuned to a certain Hz. I want it to sound good, but be louder from the outside than it will be sealed. Would 32 Hz be a good "middle of the road" tune? The box is going to go in the floor of an ext. cab '01 silverado (still has the backseat, just leaving it up…

im just wondering if it would be possible to have softparts assembled to work on a fosgate power hx2? i can take exact measurements if needed, but from what i can see so far it has a 4" dual 2 ohm coil and an 8" spider like i said though i can take better measurements of everything if you guys can help me out on this one. btw i have tried contacting RF direct and they stopped making softparts for this particular sub seeing as though its over 3 years old.] TIA chris

Ok, well Im trying all I can do to get some cf out of the box that im making to go under my back seat of my truck... I have figured out I can get about .74 cf out of my box but i might be able to get another .1-.2 cf out of it.... If it stays at the .74 cf, what would that do to the sound? I can use polly fill in it also, would that help? And if i can manage to get it up to .8-.9 before displacement, how much better would that be because it will be a decent ammount of work to get those extra few tenths of a cf...

Im going to get 2 12" SSD's if i want to wire them to a 1 ohm load should i get the dual 1 or dual 2 ohm. subs.

I'm going to order four 10 " Q's to be mounted sealed each connected to it's own Alpine PDX 1.1000 , ( all 4 were benched at 1200 RMS ) , my question is BP power or no BP power , i have seen posts where they were said to perform wonderfully under 1000 watts , and many more that stated they could take more , so i'm confused as to if i should BP them or nt please answer , thank you

Well, here's the deal. I've been running my 15" Q in a sealed box for the last month or so and I am wanting to build a ported box for it sometime soon and need help getting a design together. I have no problem building stuff, I'm just no good at getting something together that will be right for my application (right ft^3, right port size, cut sizes, etc.). Below is a pic. of the largest outside dimensions I can possibly go with. The 4" rise is to clear the tranny hump (it's going in an ext. cab silverado.) I'm wanting something tuned to ~33 hz or so. If anyone can get together a design for me, that would be great. Just send me a PM or reply on here and we can go into fu…

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?

Sup guys. I currently have 2 15s in my car and the box is around 4.7 cubes. If i got 2 15inch btl fully loaded subs would i have to increase the cubes of the box? Thats my max cubes that can fit in the car

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?

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?

So if I get a DVC 2ohm BTL that means there are two voice coils, which just ONE can handle 2kwrms correct? So if I hook up 2kwrms to each, shouldnt that work? Or lets say 1500 on each coil for less heat? Yes yes I understand Im retarded, but you never learn if you never ask P.s. figured out my other question..

I was told that I could check the sub with a dmm meter to see if its in good condition I got a 1.9 reading is this good, I think so just want to make sure? Its a 2 ohm dvc

Ok here is my question, If I cut the circle out to the circle in the specs will the SSD fit in there ok? If not what size should I make the circle. Here is the plans (I changed up the baffle so it would not be between both sides) Pics: