Fi Technical

So, after much nagging, my old lady talked me out of doing the pacman design with 4 15" BTL's in the bed of my truck cause it would take up every inch. So, will I be able to put 3 15's straight across the bed of my truck so that I have a little room to put stuff towards the end of the bed in my truck. Or will I have to go with two BTL's. 6'6" front to back 5'3" wide 4'1" wide between wheel wells 1'10" from one end to the wheel well 1'8.5" from other end to wheel well These are some dimensions I got from one of those custom fit rubber mats for the bed of this truck. I think the bed is about 21" deep. LOL, my old lady thanks you..........

Does anyone know a good box design for 2 12" BL seies subs. Nothing to massive has to fit in the trunk of a car.

i have a 15' Q. want a box that will get really loud. recamended size is 2.6- 4 cu ft. @ 28-33Hz. with 12- 16 sq. in. of port per cu ft. would a larger port be better than a smaller one?? i was thinking of doing 4 cu ft. @ 35 Hz. with a 6" x 10.5" port. how long would i need to make the port to tune at 35Hz??

I have an oppertunity to pick up a pair of TC9 Motors for cheap. Can these be made into subs by Fi? Looking for 10" subs. As well, what is the power rating on these motors?

so Im trying something new with my truck, I have an ext cab s-10 with a hole in the back...a big one... I can fit 2 12'ss, have about 8 cubes to work with(preferably a little less), and 3000 watts of power. I really want to give fi a try after having some trouble with my previous subs. Im lost as to which to go for the BL SSD or the Q, all seem to be a good choice to me for my application. Im going to go ported for sure, around 35hz. First in foremost i want loud music, It doesnt have to be the most accurate, but i dont want it to sound like a fart iether. So, can you guys help feed my addiction?

Here is my problem. For quite some time I planned on putting 4 15" BTL's in the bed of my truck, forward facing. I have a fiberglass lid, not a camper shell, so no wall. I know they need to be ported, at least I want them to be. Is there anyway to put the 4 15's in there or will I have to go to either 3 15's or 4 12's. Out of those two, which will be louder and hit harder. I was thinkin the 12's, esp in the box is right. I will be correctly powering each sub, so power is not the issue here. So, what do you think bout my situation and any ideas??????? THANKS

like it says want to build another box for my btl if someone could help with some tuneing and a 3rd dimention it would help thanks. Oh it would be a 1/2 wall can go 36X20X?(maybe 24 to 30 inches) external and would like to tune to 36hz feel free to PM me or answer here also there will be 6 in internal radius corners on the backside and matereal would be 1.25 in thick. Thanks for any help MC

Does anyone have any clue where I can obtain so rough plans or designs on making pacman boxes for my 4 15" BTL's??? I have been searching but coming up with the stupid pac man game somehow..

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

I am getting some 15" btls. I was curious about how I should get it made. I know I want the p-chamber. I read that if you get the 3rd magnet with no cooling option, this is better for SPL. So, what happens if you get 3rd magnet with the cooling option. This is going to be a daily driver with, hopefully tons of SPL, but I don't want to kill the sub and replace it or fix it consistently. So, which option with these should I go with?

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

I am very curious on this one. About how tall would a box have to be to fit a 18" BTL forward facing in it. I am curious cause I wonder if I can get it in the bed of my truck or not. I don't think I can, but am curious none-the-less. Thanks

i would like to know the dimensions of what 5-10 cubic feet is...im not a math whiz sorry. i would like to know roughly how long and tall it needs to be to meet 5-10 cubic feet. thnx so much guys, mike

I am not entirely sure about box dimensions and all. I want forward facing subs. I know 15's will work, but wonder if I could manage an 18. These are going in the bed of my truck with a fiberglass flat shell on top. I am pretty sure the depth of the bed of the truck is 20 or 21". Would I be able to build a box that will fit in this for 18's, or is it way to tight?

this is the size of box i want to build: 16tall x 40wide x 28deep, there is an internal volume amount of 8.11 cu ft. after you account for the entire top being double baffled... subs up, port back (in the middle). i came up with a port, 13.75tall x 8wide x 23.5deep for a tuning of 32hz using this program: http://www.carstereo.com/help/Articles.cfm?id=31 i used the "Calculate Your Vent Length" section to come up with that port. it asks what tuning frequency you desire but there is not a place to enter how many or what size drivers you are using. is that port good for four 12"s?

What is a good program to use that can help me put my idea on paper? I want to have a setup with two sealed drivers in the back of my blazer (15/18 still undecided). I want to have them stacked like an 8, except I want the top one to be inverted this will be in a fiberglass box painted black with lightning airbrushing. I just wish I had a program that would allow me to rig a detailed example of what this would look like.... Thanks

Obviously, you can already tell I am major noob at all this, but learning. I am getting the 4 15" BL's when I save up enough to do everything. What I need to know is what Ohm do I need to pick for the BL's. I have yet to get a amp. I was hoping to run 2 amps, maybe the Kicker 2500.1, but not sure. Any and all info on what Ohm setting and amp I should get would make my day better. Thanks.

I have an old e12k "blue e cone" DVC 2 ohm, I am hoping I can recone it, its still working and sounds good butI want to renew it I guess, I read somewhere that these were made by RE, so I was hoping I could get an FI recone kit and do it. If this is possible, what could I recone it to? Would the recone kit basicly change the sub into an FI like sub? Or would I need to have a new motor for that? Anybody have any info?

Just being curious, about how nice would 4 15's, either BTL or BL, sound being funneled through a cut through in the bed of a truck going into the cab. Would the rear seats ruin a lot of the air being moved? Or will stuff still fly????

Here is my problem/hold up. I am getting a new truck, one for pure audio fun, full size of course. I will be doing a cut through, so the entire bed is game. I want tons of SPL, enough to make your stomach almost turn. I want 4 15's and am not sure what to go with BTL or BL. I know I need some good amps to push them. What all power wise (wires, alt, extra batteries) would I need and about how much/where can I get a alternator from. I have some crap P3's now and want to do a massive jump up. I got addicted and my friends are killin me, want to destroy them. Thanks

I just added the D1 copper coils to the SSD series. Previously the copper coils were available only in D2. The addition of the copper coils to the SSD subs adds a bit more SQ in some applications. It also allows the subs to play deeper in the same sized enclosures as the standard aluminum coiled SSDs, or have the same response curves in slightly smaller enclosures. Thanks... Scott

I was going to put 2-18'' Q's in a ford excursion until I heard ONE 15'' BTL fully loaded in a excursion powered by a hifonics BXi2006. The box was 3.5 cubes net @ 33hz. Let me say that it was loud!!! I want to run 2-18'' BTL's fully loaded on my new TE4001D amp!!! Would 2-15'' BTL's hang with 2-18's? Or will the 18's smoke the 15's like that? I really want the 18's and if I put each one in 5 cubes @32hz what will happen to my excursion?(Each sub will see about 1800 watts each.) If I use 5 cubes or 8 cubes per sub what would it do to the sound of the box? I want my X to fall apart from all the bass and I want it to be LOUD. What would the Fi Audio Guru's do...

hey guys , i recently ordered 2 15 Q's , am going to run them off of a single SAZ-1500D , with 1500rms to both subs. i want to build the box before the subs get here , and had to ask for advice i noticed on the Fi website that the recommended size for each Q15 is 2-2.6 CF. i can give each 2.5CF . will i get good lows? will i lose anything? not enough power to them? im not planning a LOUD LOUD system .. just loud and clear;) thanks. Eli.

I am thinking of putting my BL 10" in my 12" fiberglass box. I want to cut a new baffel to drop into the 12" cut out for the BL to mount to. I am wondering if I will damage the sub being the box is bigger then recommended, I think FI recommends 1.2 max, I dont know how much the box will be after displacement. I am going to be powering it off a RE 12.1 1200 watts rms. What would you guys suggest? I am contemplating doing this because my 1.2 cuft box is flipping over when I mount the sub inverted. It wont drop into the cutout because the basket and terminals are just touching, also, the fiberglass box is MUCH lighter than my MDF box. Let me know what you guys think.

Would a 15" Q dual2 work decently in a 2.3 cubic foot @ 30hz enclosure? Would having a driver in a smaller ported box offer the same benifit as having it in a smaller sealed box as in increasing its power handling? As I have a USAmps MD.1D which is rated at 1200@1ohm but I believe it is slightly underrated.