Fi Technical

Just would like some info on how to tune my box correctly. I see these "port calculators" all over the Internet and wonder if they're even reliable.. I'm looking on making a slot port about 12.5"high x 4"wide. The dimensions of the box are 35" wide, 14" high, 20" depth. (outside dimensions). Thanks in advance

I didn't take into account where I was going to put my amp when designing this box (which is going to take up my ENTIRE trunk...so I had to pull one of the walls in slightly and that brought me down to only 4.7 cubes net after port and sub displacement...is that too small? Will I see any adverse affects?

what gauge speaker wire would be recommended for 4 10" fi bl (flat wind coil, cooling) i have 12 gauge speaker wire but im thinking that that is too small. its kicker shielded wire. would i be able to tie the 2 wires together and double them up to have roughly 8 gauge wire? or is the 12 going to be enough?

Hey guys, I'm pretty new to the car audio world, being that I'm only 16. But I have worked all summer and have finally saved up enough for my first system. I want to get a 12" Q and I want to build my own box but I want to get it all planned out before I start ordering everything. I have designed up a ported box that is 25"x20.25"x14.625" and is tuned to 32 Hz and has a net internal volume of 2.2 cubic feet. My question is how much bracing do I need to use and I know that it will reduce the volume, but what will that do to the frequency of the box?

Hey, I'm wiring a 2ohm DVC Fi Q to a Sundown Audio SAX-1200D. Being a monoblock amp I don't know how to wire this properly. I've checked quiet a few of the websites with wiring diagrams but none of them are showing how to hook up to an amp with double connections ++ -- All they show are mono or multiple channel configurations. Currently the sub is wired following this diagram http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/1DVC_2-ohm_mono.jpg Looking directly at the side of the amp with speaker connections, brackets = [wire] [+] + [-] - I think with the way I have it wired that it's running @ 4ohm. The goal is 1ohm.…

Hello all, need some input from the pros. Currently have my Q in a box from obcon (1.25 cuft before displacement) that a friend gave me. The enclosure is made of paperish mdf that basically turns to dust so its time I get a proper box. Now my question is, should i make it for the max 1.5cuft after displacement? Want to keep the notes tight. Also I have it powered with a rockford t1000-1bdcp (birth 1366 @ 2ohms). Thanks in advance for the help.

Just yesterday listening to my system, and my sub went out. I checked all the wiring and nothing looks loose. And I don't think I blew it because there was no smoke when it went out. Is there an easy way to tell if it's blown or not? Or if anyone might know what is wrong here, please let me know. The sub is a 12" fully loaded BTL that I bought this summer. Any answers or suggestions are greatly appreciated. And if there's anything else that you need to know, feel free to ask. Thank you.

I am thinking about putting an FI Q 15 in a 2 cubic foot sealed box. I think that this size is on the bottom as far as recommended. Does anyone know how well the FI Q performs when it comes to small boxes like this?

i seem to recall either FI or a member on here stating to use a Bl or BTL cut sheet for the SP4. i am getting my recone soon and want to build a plane vanilla box tuned to recommended spec to see what it sounds like. what cut sheet should be used with the SP4?

So I'm fixin to build a box to house an 18. I don't, however, know how to calculate my port size or to tune it. My maximum external dimensions are 35"W 30"D 17"H. I want the sub to face the ceiling of my vehicle. I don't know if thats gonna effect the port location or not. If someone could kindly walk me through the process of designing and sizing the port for my box, I'd be eternally greatful and totally post a picture log of the build process. Thanks in advance.

ok so i have a 15" ssd with copper coil and a us amps md 23 i ordered a audioenhancers ported box for it that was close to the required specs, but i got sent the wrong box. the one i recieved lookes to be 2.3ft at anywhere from 34- 38hz area will this work or is it going to be to small???

Hello all my box is finished,carpeted ,tuned at 33hz... what is the best tune for my subsonic filter? my ampi is a DD Z1 thanks a lot

Hello I have a ssd12+bp running off a Alphasonic 1200da at 4ohms. Rms is 1200 at 4 ohms BUT my electrical system is stock so with around 50-70 amps at 12.5-14 volt I believe Im only getting 550-700 watts to my sub. The 12 is in a slotported box with 1.6cuft tuned to 34 htz. I built the box for 2-12 so they each have their own seperate enclosure, but I can not see another SSD 12 in the near future cuase times are tuff. My question is this- If I build another box for my 1-12 at say 2.3cuft with a slotport tuned to 32 htz, what do you guys believe the difference would be? more SPL? I really would like it to BOOM harder, louder, higher spl. Im not into SQ so if that goes down…

Will I be doing a great injustice to my Q10 by only have 600 on it? It will be in a .6 sealed box. Amp is an Arc XDI600. I was trying to sell the sub but cant seem to get it sold, and am tired of it sitting around. So I finally decided screw the weight gain and am going to put it in my T/A. Thoughts?

12" Fi Q with a rockford fosgate punch p1000-1bd Dual 2ohm coil sub wired to 1ohm in parallel 2.5cuft ported box in a 02 Impala tuned to 32hz ------------------- Is this a good setup and how will it sound. I listen to rap & want good sq but also want to blow people away. I also have a couple questions about the setup & about the sub -will it work & are there any changes or other amps that that can make it better for cheaper? -is the rf a good amp? -what component speakers/tweeters should I use? -should i upgrade any electrical (i will go to a yellow top battery already)? -will my alternator hold up to it (i know nothing about my alternator)? -do i need a cap?…

ok this is what's up I have an mmats d3500.5 I can buy 2 more or 3 massive p3000.1, already got 3 kenetik 2400's to add to the 2 1800's under the hood. I plan on putting the 3 15's in a fiberglass wall like the old JL audio 3 10 set up approx. 7-8 cuft per sub, so what amps would you guys suggest. Oh getting 3 massive's or 2 more mmats would be about $100 doller dif.

Hi my name is michael, I am new here and figured this would be best place to get help. I have 2012 fusion, I want to add these 15s I understand the box will have to be built in the trunk and will pretty much take it all up. I will be putting the batteries in the spare tire well. I will be running DC power 270Xp. Min of 2 runs pos/ negative 0 gauge from front to rear and probley the NS-1 amp. I have around 45 inches in length, 18 High, and 25 deep. I have been doing some research and it looks possible and many cars have 2 15s but just trying to get others opinions. I know it gonna be hard but I figured might as well do it right the first time. Thank you for taking time to…

I recently hooked up 2 Fi BL 10's to a pdx 1.1000 connected to the battery by 4 gauge wire. Within ten minutes of playing i had blown the fuse coming from the battery to the amp. I was wondering if attempting to run this setup off 4 gauge wiring is hindering the ability of the system and if it would be beneficial to up the wire to a 0 gauge. Thanks in advance for the help The fuse was a 10GA stinger fuse, switched to a 25A raptor ANL fuse & holder after burning the fuse. I switched because the stinger fuses were too spendy.

Hello everyone I'm new to this and need help.Ok I have a 2000 Buick Lesabre I'm gonna purchase 2 fi bl 15's and use a sundown saz-3500d amp.The question i have is should I get a dual 1 or dual 2? Also what kind of box and components should i get?Any suggestions would greatly be appreciated.

I'm looking to recone two LA storm X1 10's. I want to use 12's instead. So what I need is two 12in baskets, and two recone assemblies that fit in the 3HP gap. I haven't been able to find out anything about the gap, other than its a 3in coil. But I saw at CA that you guys reconed a 3HP neo. What series coil fits? Thats the question. As it is right now, I have a Fosgate 1000D on each sub, so dual 1.4 or 2ohm coils would be what I want. I can say that they will be going in a 5cu ported box. (thats the largest I can fit in my car.) And I'll be using them for daily.

Trying to figure out how to get the 3rd magnet option on the BTL.... I want to say I remember seeing it on their website as an option in the past --- has it become a standard? I only see the following options: Ohm configuration, p chamfer, cooling, hixm coil, daily or spl, induct heat ring, and the universal option. Thinking about getting a fully loaded BTL within the next month. Any help would be greatly appreciated. Thanks. Also, looking to get the AQ3500 amp w/yellow top up front, alt upgrade, along with big 3 upgrade. I listen to a lot of chopped and screwed music, so I think this setup would be perfect. C and S music isn't clean anyway - just good bass - so i'm not …

Hey guys i have a 2009 silverado crew cab. i asked a few weeks ago how to get more bass out of my truck a few of you guys suggested raising my seats to accomadate larger subs and enclosure. that being said i raised my seats 4 inches. i now 3.8 cubes before any displacments. my questions are im looking for the best spl but i dont think ill have enough space for two 12 btls if i port the box. the box is 55 inches long and a port is gonna take too much space. the subs will be firing down into fatmat so i dont think im gonna hear much "music" out of them. any suggestions? thanks

Would 1 10" bl with cooling and flatwind coil in a 1.4 cuft box tuned to 32hz be louder than 2 10" ssds in a 1.8 cuft Tuned to 33hz? Also what would be the ideal port area for the ssds if I put them in a box with two ports? Thanks

This is what i am going to do: 2002 Impala 12" Fi Q dual 2ohm w/o bp option Kicker ZX750.1 2.5 cf^3 at 32hz ported box tubeafter displacement Kinetic battery under the hood Cap Big 3 upgrade **NO ALT UPGRADE** Is all this fine & should anything be changed? Better amp for a cheaper price? Any other suggestions or comments?

Hi, I'm getting a Fi 12" Q and need some help on a ported box. I'll probably go with the recommend tuning of 32hz, but I was wondering what the main differences between 2.0 and 2.5 would be?