Fi Technical

I just ordered my 2 12's with BP power option...just for good measure. I'm gonna have a T20001bd on em. I want to port em. How do you think 1.8 cubes ported to 32Hz for each sub would sound? Do I need to push for 2 cubes? I don't have much room in my car...but here's a pic of the trunk space I have with my previous setup. That was just 2 JL 10w3v3's I'm thinking of running the boxes along the side where the old ones were. So how would 1.8 sound? Still jam the subs hard, or do I need to go for 2 cubes or even more? More than 2 would be pretty tough, but I wanna build the fiberglass boxes once...gonna be alot of work.

I recently had a s10 ext cab with a 15 inch bl in it which im now selling because I traded it in on a silverado ss....oddly enough bigger truck does not mean more sub room sadly so it won't fit. Ive looked around alot and can't seem to find a case where someone used 2 12s in a ported box under the rear seat of the silverado and im not a fan of sealed boxes but it looks like thats my only option unless smoene could suggest something else. Was thinking 2 12 q's or ssds running off my memphis pr1000.1 amp and im not sure if i want them forward facing or downward facing, Im sure i could get a little more airspace if they were forward facing but does it really matter which way…

Was wondering if those cut sheets are still optimum to today's Fi Q12?? I'm purchasing one at the end of this month and would like to build the box while I wait for delivery. Going for a ported enclosure but for fun was gonna build a sealed too and check them both out. Thinking of getting the sub fully loaded with every feature just cause I can and run it on a Q1-1200D from Soundqubed at 1ohm producing 1200watts. It will be in a 2005 jimmy 2 door so room is not a factor. I listen to all types of music and would love clear crisp bass but also able to bump it when I feel like it. I know there is no magic box that gives me both SQ and SPL just want good sounds on musical mu…

I dont know if I should go sealed or ported? I listend to all types of music but mostly dance that has some hard hitting and low bass. I wouldnt like to sacrafice my whole trunk if possible and this will be pushed by a sundown 1000d

currently i have a 12" BL in a 2.5 cuft enclosure tuned to 32hz. it is being powered by a "1600" watt hifonics amp (soon to be a sundown saz-1500d). i LOVE how the sub takes on the task of playing songs such as hypnotize, white girl, etc... however when i slap in a cd of something other than rap... there is little bass, if any at all. would changing what my enclosure is tuned to give more response on kickdrums and the like? what i am looking for is something in between the notes in rap and the notes from kickdrums,etc... from other genres. thanks in advance for any all and suggestions

Which would be louder? (Daily) 1. (2) fully loaded BL15s with about 3.2ft3 and 50sq" of port "each" tuned to 33Hz..... with a Hifonics Collosus (3200rms x 1@2ohm) so that would be about 1600rms each. or 2. (1) Fully loaded BTL18 with about 7ft3 and 120sq" of port tuned to 33Hz......pushed off of a Hifonics Collosus also. Going in a 2dr Explorer Sport

Im wondering what amp to run for a dual 2 ohm btl 15 with cooling, HiXmCoil, Daily, I Heat Ring. what would be the best bang for the buck? My budget is around about 600 but will pay more if its worth it. Thanks

I have a Fi Bl 12" which is fully loaded and i need to build another box for it. I think my first one is not the correct dimensions for this speaker. Are there any good tutorials or even someone with a box design. I want to make one with 33Hz Thanks a lot Patrick

Hi i was wondering if you guys could make a recone for these subs. #1 AudioQue HDC3 15 #2 DC SOUNDS Level 4 15 Both dual 2's What soft parts will be used and how much? You can post here, PM or email me [email protected] thanks in advance.

What is the 15" bl in sd or the cone area in inches not sq inches.

I have two 15" SSDs with copper coils, going to be running them off of a Kicker ZX1500.1. I don't have a lot of room to work with after I reinstall the back seats of my truck and all, and I was wondering if anyone has had experience running them in a sealed enclosure? What's the smallest I can afford to run?

Im looking at getting 2 subwoofers. Trying to decide between the SSD10, SSD12, Q10, or Q12. This will be a sealed with about .9 to 1.2 of airspace-haven't decided, depends on subs. Between the SSD and the Q which sounds better sealed/louder in sealed. What options would be best. I have read the descriptions of the different wires and still dont know what peaking is meant to be. -what effects will the flatwind coil or copper have on the power handling and sound quality and loudness. Peaking? better for sealed? -Is the BP option worth it in sealed. Will any of the options help reduce the subs heat in the seal enclosure. The subs will be sharing the power of a kicker zx…

i will be buying 3 12" q's in the future with the bp option but was wondering what VC comes in these, the site just simply says 3" 4 layer coil. is this a flat coil, or a copper coil or what, i was reading the coil options listed and it would seem to me that a copper coil would be best in this with it being a SQ orriented sub, but correct me if i am wrong. Will be running these off a Sundown 3000d on a daily set up that will see comps ocassionally wired in a series/parallel combination to right at 1 ohm. FI guys prefered on replies as i am looking at thier view point being that i know they know thier products better than no one else. no offense to anyone else there so pl…

Guys, I know the BTL enclosure recommendation for the 15" BTL is 3-5 cubes net, however I also know that required volume is also dependent on power supplied. I was wanting to know if there would be any problems with running (3) 15" BTL's in a 8 cube net shared chamber enclosure? I should have roughly 3500 watts on tap for each sub, but I will not submit them to that much power, I was just wondering what I could get away with in terms of enclosure size? This is a daily beater.

Is the BP option really for people who want to compete? I'm looking for SQ in my 15 Q i'm getting. Is it something I should get or for people who just want to compete>? Thanks. Jess

hey hey i just got one of the re xxx 05 model and scott i emailed u about a few things such as specs and a 18" top end lol the 15 just dont make me happy so i wanna convert it to 18 anyone know how much this will cost? my buddy john Mulcahy told me to ask scoot cuz he was the one that designed these subs

Im just hopin that someone can help me out with gettin the info to order a FI Sub i have a alpine type x and it aint the bass im looking for and ive been watching steve meade and its just WOW!!! and a guy came by my school (Mobile Technical Training) with two 12's and it made the whole car shake i even have a video of it but yea i live in the Virgin Islands and i would like to know how much would it cost and if its possible for me to get it cause i really want one, thanks to anyone who can help me with this.

ok someone told me before that if they were standard 3" coils then they could be reconed. well i got bored and ripped on of my blown T1's apart. outside of the coil is 3.204"-3.244" and the inside of the coil is 3.020"-3.051". bent a lil bit, maybe from removing it. how much would it cost to recone? how much power would it be able to handle? would i just be better off buying ssd's? thanks. p.s.- any more dimensions needed ill see what i can do, its kinda hard to get into the basket with a 6" dial caliper . but ill see what i can do if ya need me to. the gap in the motor is approx. .145"

Is this too big of a "enclosure and port" for a daily. For 2 fully loaded BTL15 with a T4k ......11.1ft3 (net) with 160sq" of shared port tuned to 30hz....after sub and port displacement subtracted I got a total of 8.6ft3 which would be 4.3ft3 and 80sq" of port per sub. Is that too big?

I was wondering how much it would cost and if it could be done. I want to turn my 18" btl into a twelve. Can I just buy a basket and recone or will the motor need tooling? thanks for any help.

Hello, I'm lookin at getting an 18" BL, but my major problem is that my trunk is too short to fit an 18" sub in facing the rear of the car. So I came up with a slightly angled design that would shorten it by a couple of inches. My question, however, is if the basket of the sub will hit the bottom of the box at any part, since the sub is sitting at an angle. I drew up a diagram in Paint of the exact lengths and angles. Any input is greatly appreciated. Thanks in advance.

Alright, vehicle is a 99' infiniti i30, 4 door sedan, I have two 15" Q's on a crunch 3000d-pro. The enclosure is 7.2 cuft after port, and displacement, tuned to 32.5hz. It gets pretty loud, but kind of a empty not real full sounding bass. The enclosure is built into the trunk with the woofers mounted invertedly, so that the magnets are pointed toward the back of the backseat. the port is firing out of the top of the box through a hole in the rear deck. It sounds like there is a lot of cancellation, and when I open the trunk and crank the system it sounds way better and hits the lows way better. I understand this is some sort of phase issue I believe, and have had o…

Ok, I Have the Pioneer AVH-P5000 HU, an AQ-2200 amp, and 2 Fi Q 15s that are in a 5.5 cu.ft ported enclosure after all displacement that is tuned to 35 Hz. The HU has a RAC output of 4 Volts so i match that voltage as close as possible (3.9V). I tuned my enclosure to 35Hz so my Subsonic level is set to 30Hz. I know that the gain is the most important setting to any amp, followed by the Subsonic filter if you have a ported enclosure. Now am trying to find out how to set my Bass Boost and Low Pass Filter. I looked through the forum found info on the Gain and Subsonic filter but couldnt find anything on the BB or LPF. Are they just set by ear or do they have parameters. Can …

What's the smallest you think i could go with a BL 18. I'd probably wire down to 2 ohms and get about 1100 out of my amp if i went sealed. I've got some extra wood from the real box, and i thought that i could make a box to take up only one seat for when i want to take an extra person, but still have some sound. I don't see a ported working because i couldnt make the port big enough i dont think, maybe i'm wrong. Anybody ever sealed a BL 18? I doubt too many have, but what would it sound like? (also, when i say small, max dimensions that id like to use are: 23H*17-18D*22W, which is 4.4 cu ft after wood displacement.) PS: regular box is 6 cu ft tuned to 34 hz, so please d…

I used to get Chris @fishercustoms to do my box designs but their forum is not active much and Im not sure if he still does them. Who else does designs, need for 2 FI BL 18's in a wall in a 2012 scion xb