Fi Technical

Just wondering if someone could give me some plans for a ported box. Nick told me to post here and someone would be able to help me.... sub - Fi Q12 amp - TXA 1000-D max dimensions: -Height - 16" -Depth - 18" -Width - 36" Thanks, Ryan

I wanna do 2 15" subs (read Fi BL's) In the back of an 1990 Formula.........think it can be done without having a sealed box or a wall and still having a backseat?? God I hope so. J

Please tell me this is a warranty issue...? It happened last night noticed one sub quit, kind of looks like the wire was to short, there are no rips in the speaker just a broke wire? this is a Q 10.

well im trying to plan my setup... already got it down to a fully loaded for daily driving BL 12inch subwoofer to go with my RF amp that pushes 1602watts rms.... the box will be around 2-2.5cubes after displacement... have to run all the numbers after i gut my current setup.... and well i plan on running my same box setup in my civic to have it front firing into the cabin... and well i have a slot port in my box but im wanted to rebuild my trunk setup and this time instead of having a slot port id like to use some aero port or ports..... want to use some 4inch aero ports for the setup.. BUT im always HORIBLE with calculating ports.... ive always had people run the number…

I have a bmw 328xi sedan and im gonna be running a single 12" fi q in a sealed enclosure because i wanted more sq the sub has the high qts option and the heat ring the website says .8-1.5 cu. ft what im wondering is what would be optimum size for the best sq for a wide range of music.

Hey everyone. I am a new member but have been reading a lot of threads here for a while. I recently purchased a 12'' SSD with the copper coil option for my 03 S-10 ext cab. I plan on throwing the recommended RMS or more at it. I am now struggling to figure out what type of enclosure to build for it. I have read good things about sealed and ported for this subwoofer. My goal is to have a good sounding setup that has the potential to be loud if I felt the need. I want to build a ported enclosure but am afraid of port noise seeing the enclosure is in the cab with me. I can build a sealed enclosure also pending peoples thoughts on this. If anyone with knowledge on desig…

I was wondering if you could possibly give me plans for a ported box for 1 fully loaded BTL 12" dual 1ohm sub. Powered by an Earthquake PHD10000d 3000 watt amp. My trunk dimensions are 36"L x 36"W x 17"H. here is the plans I got off a website. How does this look?

Ok I am about 10-11 months from buying a 2009 Mini Cooper S (waiting because I will pay cash) so I have started my plan for the low end. I have a 10" BL on the way and plan to run it of of a Fosgate 25 to life Punch 150 (birthsheet states >800w rms) I want to keep the box small but want good bottom end I am looking at around .5- .7 ft^ Has anyone run the BL in a small box like that? Any problems or chalenges? I can go larger if need be as the car will not be a grocery chaser but my commuter car BUT I want to still have space in the tiny trunk area for the times the wife and I need to put something back there. As you can see I have time to change the plans but the BL is…

so i have a d2 bl that will be on a saz1500 and was wondering on basic guidelines for a box. im looking for input from those who have played with em, or can tell me from other experiences whether or not 2.0 w/ around 40^2in of port would be okay. with the sub and amp in consideration should i go bigger/smaller, more/less port?

So im designing an enclosure for my btl thats coming in for my crew cab truck thats going to sit on top of the seat and im not sure what the best orientation for the sub and port are for trucks for the most spl. Is it sub forward port up? Sub up port up? Heres one design that i put together, about 7.75 cubes net after displacement, 32 hz, the port will be facing up and sub forward. Are there any design flaws that you guys can see with the port? Is there enough space between the end of the port and the back wall of the box? Any other recommendations or comments?

im thinkin of gettin this planet audio big bang 2 1400 that puts 1000 @ 2ohms ive read good reviews so this is just to seal the deal.......any info will help thanks

What is the difference between Running my SSD 900RMS@2ohms or Running my SSD 900RMS@1ohm. I think it has something to do with efficiency?

I know that you don't sell ib3 8" subs . But could you and at what cost ? Looking for one for the rear deck on my Lexus .

Hey guys, Mr. Noob with here with another question again.......I am putting in binding posts to replace the terminal cups in my sub box cuz all my wiring is 8 gauge and the cups do not accomadate 8g wire. Plus I always go "OVERKILL" for peace of mind. When talking to Mike of Zenclosures(guy that made my box and he's GREAT guy like Scott is by the way), he said I could just use silicone to seal the new posts. I've seen people here talk about caulking so which is better? Or is silicone adequate? Enquiring minds want to know????????????????

I have always done sealed boxes before and I ordered a 10 inch dual 2 ohm bl and am struggling with the port dimensions. Different programs I use come up with different numbers. The recommended dimensions are 1.2 cuft with 15 inches of port. I am assuming thats 15 square inches. I have the room for width of 16 inches wide by 13 inches tall and 19 inches deep outside dimensions. Which according to my calculations using 3/4 inch wood is 1.97 cuft. But I only need 1.2 cuft. The 13 inches is the most important measurement. I don't want to go higher or lower than that. The depth of 19 inches is what I want to shrink the most and I only want to go 15 inches wide at the n…

I was wondering if the BTL or BL could be run in a sealed box. The Fi site doesnt have any dimensions for sealed boxes. If they cant be used in a sealed box, why? Is it because they just wouldnt sound good? Just wondering. Thanks guys

Does anyone have a contact number for them?

Hello all been reading this forum for a while no w not new car audio but new to ported boxes trying to put one 18" fi btl fl into a scion tc with out taking up back seat. The measurments I have are 40"w 16"h 21"d I would like to tune to 31-32 hurtz. Iwas wondering if this would be enough airspace and if someone could help me with the deminsions I would greatly appreciate it. Oh and also going to power this with an saz3000 sundown if thats any help. And Thanx in advance

im picking up a 12'' bl and i read the best tuning for is 32hz, can i get some box designs to hand to the audio shop thats building the box? this is my first time going with ported and i know nothing about vent area and how many sq inches of port..so i could really use some help..90% of the music will be rap but id like it to be musical not just a fart canon or muddy, it will be a daily driver

So i got my 15Qd2, and it seems to be running pretty warm. No smoke or anything, just that when i get home from banging on it a bit it feels a little hot. Just got it two weeks ago so not sure if it's still just from breaking in, which i'm thinking not, or maybe from low voltage?? It's running off of a fosgate p1000-1bd and the gain is just over half and under 3/4. My lights do dim a lot when it hits. There is a little smell, but smells more like breaking in smell, not vc burning smell, hence no smoke and when i took it out a few days ago vc still looked brand new. Basically, any thoughts on getting the sub to run cooler?? I'm thinking this could become an issue if p…

for some strange reason my system hits the hardest when my box is angled like this in my trunk.. Less rattles and everything its almost as if my car pressurizes itself and it doesn't rattle or I just don't hear it..

hello guys, ive been a member for a while and have read tons of information on the Fi Bl and im ready to pull the trigger on one, but im stuck with one question. I've viewed the cut sheets that are located as a pinned topic, but i was wondering if i could make a slight modification. Since i will be building the box as a center console in my crew cab truck, i will be downfiring the sub and wanted to move the port to the side firing forward. The only reference i can think of on how i want the box to look is like the DD high efficiency box with the side port. Now my question is, am i correct to think that it will be fine and that all i need to make sure is that the port len…

I want to buy Q 10's. I am looking at ported box specs and there is a pretty wide range. I am looking for flat response and good SQ with a punch. I listen to metal and rap mostly depending on the day. They will each get 1000 watts in the trunk of Grand Prix. i was looking to do 28.75 sq inches of port for both, will that be enough, or will i benefit from upping it to 31.625

Doing some box designs and wanted a little help on picking what hrtz to tune the box at. I read the post from Fi about tuning and it says anywhere beteween 30-37 hrtz. I will have around 8.5 cuft for each sub and wanted to hear some suggestions on tuning. The enclosure will have the ports facing twords the rear with the subs mounted on the top side of the enclosure. I listin to mostly rap music and want it to be loud as it can be. The subs will be pushed by 2 Alpine PDX 1000.1's for now, but down the road will be pushed by 2 PDX's on each 18 1 on each voice coil at 2ohms for a total of 2000 watts to each sub. Thanks, this site has helped me alot so far, the best sit…

Just a quick question, I have a JL 12W6V2 that I bought on ebay a couple of years ago. Sub worked fine for a while, but eventully died on me (my fault of course, got a lil greedy with the gains lol)and has been collecting dust at the house ever since. I was wondering if FI can do a recone on this sub? Thanks.