Fi Technical

hey guys im new to the forum and i have a question. im thinking about ordering a dual 2ohm 15" and wiring it down. my only fear is having my amp go into protect mode. my amp goes into protect at .8 ohm. what do the sp4 15" dual 2 ohm coils actually read. are they actually dual 1.27's if their re: 1.27 Ohms/coil? even if i wired it down to .635 do you think i'd be okay after box rise? im going to build a daily driver tuned around 28-30hz 500 is a good chunk of change and it would suck if i had to wire it up http://store.ficaraudio.com/sp415/ thanks for your help guys

Look at title. As an example, a 15" Fi SSD both D1 and D2 have the same specs except for a 40% higher BL on the D2, can someone please explain what is happening that makes this configuration have that much more motor force?

As of right now, I have 2 800 watt sony amps. Its about 350 RMS at 2 ohms, and is unstable at 1 ohm. My link I have a BL 15, and I'm wondering if this severe underpowering of the sub is dangerous. I don't have the money right now to upgrade on an amp. Also, is it possible to use both the 800 watt amps to power the one 15?

it doesn't make sense, when i chose the p chamfer option it added $10 then i chose the cooling option too and it doesn't have a price. and there's a note that it i chose both p chamfer and cooling, uncheck the p chamfer because p chamfer is incuded in the package of the cooling. in short, if i get both options, the p chamfer and the cooling, i will get it for free, but if i only get the p chamfer option, i need to pay addtl $10 for it. can someone explain this for me, thanks. i'm also planning on getting the universal option, my question is, if i get this option will there be any changes in the performance of the sub? or side effects?

right now i have a fi ssd on an aq1200d but i want to get a btl and maybe score the free cooling option before july 29 but i haven't been able to sell my aq1200d so i'm thinking bout keeping it and just buying another one and strapping them together but i will only be able to run it at 2 ohms so what would be better 2 aq1200d's @ 2 ohms or 1 aq2200 @ 1 ohm ? and how would i wire the 2 aq1200d's? this is my first post so sorry if it's messed up at all lol

i have had my fi q installed in my car for a few weeks. today i was listening to it pretty loud, but nothing too crazy when all the sudden it stopped. my power light on my amp is still lit up (jl1000.1), all wires are connected. any advice or thoughts on what happened?

Do you need big power to make the BL series subs play at their best? Will they play low and deep on 1,000 watts?

Since I've bought the sub,I noticed they sell a fully loaded BTL.My sub only has 2 magnets.Is my sub the 2000w rms model,and what year sub do I have.my ride

Here's the deal... The car is a 2001 chevrolet s10 blazer 4 door and i currently have a 12in l7 kicker (4ohm dvc) with an enclosure of 3.75^3.ocft @ 35hz... powering with an Sundown audio saz1000.1d the sub is currently gettinh 600rms on a 2ohm load... i'm looking for something with quality and want it to get low and loud. i've came to a conlusion to go with an Fi q, the only problem is i don't know whether to go with a 12in fi q 2.5cft@ 32hz or a 15in fi q with an 2.6cft... not sure of options since havn't made up my mid on what size nor know what options to go with with either setup... i will be running the amp on a 1ohm load to feed 1k rms to this fi q. i'm leaning mor…

Well here is the thing. Yesterday I tore out all my 4 gauge wiring to upgrade it to 1/0 welding cable, soldered and heat shrink and all that good stuff. Anyways I decided to take my sub out of it's box to look at it. It's been 2 years since I took it out and it wouldnt hurt to check for any wear/possible damage. I amost forgot what the back of the sub looked like lol. So I noticed the sub is "double slugged" or how people call it. I remember on Fi's website the Q had one magnet. So my question is why did they make the older Q with 2 and the newer ones with 1? Anything changed? Any sort of benefits from it or what? Just courious though. I was thinking of getting anothe…

I was looking into the hifonics amps for price reasons. Looking for an amp around or under 200. I was thinking about the hifonics brz1200.1D. Opinions? This is just going to be a daily driver build with one BL12. Any help is apreciated. And just for kicks, the car is a 1987 Suzuki samurai.

Hi, idk if someone's read it in my build log but im looking for someone ho can create some blueprints for a dbdrag enclosure.. I'm also ready to pay a little tip for it so like said: Anyone out therer for help? I can give the max dimentionts if someone can do it.. faezich

So to start things off I have a 2000 silverado ext. cab. I am very interested in the FI Q series subs but have a quick question for those of you that are more knowledgeable than I. I would like to keep my back seat and put two subs underneath the seat, now my question is. which would be a better setup for a daily driver? I have approximately .8 cuft available for each sub. would two 12's sealed or two 10's ported be a better option? I understand that .8 cubs fits in both categories but have also heard that the 12's really need somewhere around 1.2-1.3 cuft. I listen to huge varieties of music at all different levels. and am not so much interested in hitting 145 db at one…

Hello everyone, I'm still trying to decide whether to buy one or two FI 15 BTLs. I will be buying each sub with: dual 2 Ohm, cooling package, HiXmCoil, I heat ring, and will be set for daily. For each sub, I was planning on either running a Hifonics BRZ3000.1D Pro with 3,000 watts RMS @ 1 Ohm, or a Memphis MC1.4000 Mojo which has 4,000 watts RMS @ 1 Ohm. Will the FI BTL 15 be able to handle 4,000 watts? or will the 3,000 watt amp be a better choice? Money is not an issue, and I'm going to do the Big 3 under the hood. I am also looking for the dimensions of a box for either the one or two 15s. The truck is a 2009 Chevy Silverado 1500 extended cab. I'm going to remove the…

I have two BL tens and I was looking to recone them but I can't figure out if it has a flatwind coil. If it doesn't can I upgrade to it without it being a problem? How can I tell if it has one or not cuz I need it but idk if it'll work with it

??? Thanks

wondering if I buy a couple MT motor's can FI help me out? [email protected]

I have been building my brothers blazer for stereo competition. I have the build in the build log area under "walling an s-10 blazer". The system is Four MA Audio 802sx amps (about 2500 watts RMS) to four 15inch fully loaded BLs with the SPL option and they are dual one ohm. The amps are then running at 1/2 ohm mono. They are in a 23 cubic foot box with a port mouth of 32 x 9 inches and it is 2 1/4 inches deep. Our best test score today was a 153.7 at 51 hz. We tried longer ports but the one we started with is the loudest so far. We have not tried making the port mouth smaller and it can not be any bigger. We also have not tried putting stuff in the box to take up…

okay so I have posted on here a time or two before when first acquiring my FI audio speakers. I am driving a 2010 Chevy Malibu two fully loaded 12" Fi Q's, built for a sealed enclosure due to the lack of space to slide a box in the trunk. I have a Brutus BRZ 2400 hooked up to them, running them wired down to 1 ohm resistance. I also have a kinetic 2400 battery, nothing done to battery up front or alternator. 0 gauge knukoncepts ran throughout This is my daily driver and i run the system every time im on the road (on highways for 2.5+ hours a day) the RMS rating for these subs is 1500 apiece if i remember correctly, and from what I have heard, added resistance when turnin…

Ok well i built a box for an 18" Fi BL the specs are 42" wide, 22" high, and 22" deep. The port is 5 inches wide and 15.5 inches long. tuning it in the upper 31hz range. The box was like 8.3 cu ft. before woofer displacement. is that too big for a 18" BL with flatwind coil? Because the box doesn't sound good at all. and the woofer gets pretty warm on zx1000.1. I feel like its too big but i could be wrong.

Hey guys. I'm trying to finish up designing the subwoofer/amp combo for my 02 Yukon. I currently have an RE SX 15, 5.5 cubes at 33hz, on a jbl bp1200.1 My new one will be a single fully loaded BTL 18, 8 cubes, exactly 119 sq inches port area, at 33hz. It will be fed by a Hifonics Colossus (3200rms at 2). All power/ground will be 1/0 KnuKoncepts Kollosus cable (5000+ strands), Optima Yellowtop up front, Iraggi Amputator 175 idle/220 at 1400, possibly another yellowtop in the rear later on. Box will be 48Lx24.5Dx18.5Hl, with an internal dimentions of 46.5x23x17, with a 7x17" port (119sq inches port area) and 28" long. The port itself (with MDF included) will take up approxi…

Here's my box I made for my new FI BL 15. This will be going into my 2014 Focus ST and will be driven by a Brutus 1200.1d at 1 ohm. Box is 3/4" Oak Plywood and is on the high side of 4.2 cubic feet. It is stained with Minwax Cherry Blossom stain with like 8 coats of poly. Empty Soda can is for size comparison. Has 14" long 6" psp aeroport tuned at 32hz. Turned out a little more Purpley/Burpley than I initially wanted but I said to heck with it and left it Burple. Looks a little more reddish Burple in the sun than in this pic. The shade.........It's growing on me. I did a little shake down run with a old RF Monoblock amp I had running a 18" obsidian. It sou…

has been fixed. thanks

Alright guys, so i have a dual 1 ohm q18, and i need an enclosure, the specs on the website aren't specific enough, i want to know what size sealed enclosure, would be best for sound quality? I am getting my enclosure professionally done by my local car audio place, and he needs the specs that i want it at. also how do you wire the 1 ohm subwoofer, i'm new to this-lol so please get back to me on this asap. thanks -aj

I've done a few builds in the past, but have yet to use your products. I work for a very large cabinet manufacturer in Minnesota and have a high level of skill when it comes to wood fabrication. It's been 5+ years since my last build and I am a bit rusty. Needless to say, I don't trust my calculations and I am hoping someone can look-over these to let me know their thoughts on the dimensions/specs for these particular subs. This build will be for (2) BL-12's each in their own enclosure (with both enclosures attached together @ the ports). Below is my dimensions/specs. If this is in the wrong section of the forum, I apologize. If a moderator can move this to the proper…