Fi Technical

can anyone explain what each acronym or letter means and what option/s it represents? thanks guys.

I am new to car audio and need some help. Im not sure if i could fit an 18'' Fi BTL will fit in the trunk of my Toyota Corolla. Thanks

Hi guys, I used the cut sheets for the fi btl 12 inch before. Was wondering if anyone has any cutsheet for 15" sp4 in sealed enclosure. Just for daily setup powered of a saz 2500d.

So I have been driving a single cab truck for close to 10 years now. I've always liked car audio and I went from a shitty 10", to a really nice Ascendant Audio Assassin set up, which was pushing the limits of what I could fit in a Ford Ranger. Got an F-150, but I didn't drive much at that point, so I kept my Assassin 8"s and hifonics amp. But I'm getting a Ford Focus hatchback now, and I have been wanting a Fi Q for years, so I want to do it right. I was originally thinking two 12"s, but that seems like it would be a nightmare to power (3000 watts RMS can't be cheap o.o). So I figured a single 15" would be a nice middle ground. I have no idea if I would want to go porte…

Can a pair of Fi Q15's be ported and tuned to 30hz in a properly sized enclosure, if my max external dimensions are 22" (d) x 19" (h) x 38.5" (w)? Less height and depth if possible... I was planning on running them sealed, since I know they have great lowend sealed, but if I can still have great lows with more output, I want to got for that. This is for a Dodge Magnum. My goal is to have the most output while maintaining a somewhat flat response, with the gut twisting lowend.

I recently bought a sp4 and i have it powered by a hifonics colossus, im getting a 350 amp alternator and just wondering if i need a bigger battery? Whats the point of a bigger battery cause once the car's started the alternator takes over for the electrical system right? The 350 amp alternator should be more than enough to give the amp all that it needs right?

You guys must be busy...I sent a few emails and all I get is a message saying something about email delays...o well I guess I will have to wait a couple more weeks to knwo when my subs will be shipped back to me.

Whats the best kind of wood I can use to get the full preformace out of a 18'' FI.BTL with these specs? Dual 2 Ohm,Cooling,HiXm Coil,Induct heat ring,And Daily option. I plan on buying four!!! Also the recommended option is 2000 Rms but Steve Meade told me he gives his 5000 Rms each he has four also. ''audio-neon'' told me ''meade knows how to build enclosures to compensate for overpowering the woofers thats why he gives them that much power''. If thats true how will I make my enclosure inorder to do that if I plan on overpowering the subs. Is that a good thing if I have a enclosure do that or just stick with 2000 Rms each (or maybe 2600 rms if so). FI.BTL Specs (BTL18) …

Yo guys I am wondering if any body in north Mississippi or perhaps Memphis has a Fi sub cause I'm about to get myself a 18 btl. I just wanted to see the quality in person and the sound because it's talked about alot in these forums. Thanks again

Hey guys i have a FI Q 10 that is run in .5 cu ft sealed its run by a Rockford Fosgate T2500bdcp. Problem is that when you get any kind of power going to it the driver seems to unload starts popping like its has reached the mechanical limit and this is what i would consider to be at a very low volume not sure what to look for to figure this out is there anyone that has had same problem. Please help really want to hear what this thing can do any advice would be apperciated.

ok today i was playing my woofer while driving for about 1 hr. after i got home and parked, i went to the rear and touched the dust cap of the woofer and it felt warm. i was wondering if this is normal and is there anything i should be worried about? my d2 18" bl is being ran on a kicker 1200.1 @ 1 ohm. head unit gains are set to 0 and amp gain is about 40% turned up and bass boost aswell. woofer is in a 9 cube ported box tuned to 32 hz.

I've been trying to decide for weeks what i wanted to do for an audio set up. Im pretty sure i have it figured out. Im thinking about ordering it all today or tomorow, so i could use some fast help. Im getting the sundown 1000d and 1 12'' FI sub, i would go fifteen but i don't think i could fit it. I'm stuck between the FI ssd, or fi bl. I listen to mainly rap, and heavy metal(alot of double kicks and what not) so its a daily sub. I like boomy deep bass, i don't care so much about higher notes but the better one could hit them the better. I was also wanting to ask about enclosure suggestions, im not too worried about loosing all my space in the back, but if possible i wan…

Hey guys, i need another recone for my MT. Im looking for dual 1.4, optimized for use with 2 powerbass xa3000d's. I want stiff but not super stiff, i was thinking quad spider, 2 stiff, 2 med stacked alternatly, with heavy duty tinsel. If you guys have another idea im open to it. Lemme know please need it asap. BTW itll be shipped to ontario canada.

ok I am upgrading from a 10 Q in the cab to a 15 Q in the bed with a bed cover and a boot (uncertain what size) i need some help with designing a box height 17.5 width 40 depth 59

want to know what fi soft parts to beef up my aa12" havocs .will the motor support an spl optiion or would it be better daily, or in between. .......... FRANKIN HAVOCS ON THE WAY????????!!!P.S. CAN YOU GUYS HELP ME!!!!!!

Hey I was talking to Scott about reconing my tc9. he said he could, but i think he has been busy lately so i'll post this here lol. I have the address still from and earlier recone i sent in, can i just send the sub in with a little note stating what i want with my contact info?? or would there be something else that i need??

I have been searching all over the internet to find out about qts (never even heard of it before i was looking into Q's this isn't my first system, i just never accounted for it before. it looks to me like it is highly dependant on what you are doing fi q 15's have the cooling and spider upgrade options, that is it i am going for sound quality with this build, dual fi Q 15 in a sealed enclosure measuring ~ 2.3 ft^3 per sub (after displacement and bracing of course) each sub will have it's own rockford fosgate t-1500-1bd giving them ~1350watts @ 2 ohms (already had one and just bought a second off a friend, who said headroom was a bad thing) they will be in the back…

hello, as stated i am in need of a box design. i got 1 18 Q and a aq1200d amp and it will be going in a 2000 grand prix. so i have about H = 16". width = 30". and length = 32" of room for a box but i do not know how big to make the port. i am going sub on top and port at back. suggestions needed.

Need to know how much a recone would be for this sub. Thanks

remember the 4 15" BTL's you sent to me for the SM3-4 build? you wouldnt happen to have a set of specs for those do you? lemme know please Thanx Peter

I have a fi q 12. I didnt choose the high qts option because i had planned for a ported box, but ported is wayy to big for my little trunk lol Would it matter if i put the sub, without the high qts, in a sealed box? If it matters, im going to put it in the smallest bOx possible. I dont plan on running the sub to the max, just some extra bass for daily driving. Also, i hate rattling, so you can bet i wont run it any where near max output.

Hi, I have been looking at FI for a while and I am thinking about getting 4 Q 12's. I will be running 2 MTX TA92001 amps which put out 3000 watts rms @1 ohm or 2000 @2 ohms. would 1000 watts (2 ohm setup) be enough to max out the sub or should I run a 1 ohm setup and just turn it down a little bit and give it more power. also, I have about 10 cu ft of trunk space and i am probably going to run 2 cubes ported for each sub. Should i seperate each sub in its own 2 cube box with its own port or just build a big box with no seperaters and one big port. and one final question for those of you who have had experience with the Q's and the BL's. How much louder will the BL's get …

DAMNIT, well i heard a lilttle noise coming from my speaker today, hadnt played it in about a week, but anyway, i pulled it out the box to find that i have 2 holes in the spiders from tinsel leads, and numerous rips, guessing its from playing below tuning. i need to know how much a recone is scott, i dont know wether i will or just sell it, looking to get a new truck and there wont be room for a BTL 15, its loaded by the way, What to do??????/

I'm looking at buying this used fi btl n2 and i'd love to know the specs if anybody has them or has a link to them,

ok im trying to figure out what to run for a build im about to start. if i had 4 18' ssd's w/ bp power and flatwind and 4 "stock" bl's in the same car, box, and tunning is there gonna be a major difference in loudness, sound quallity.....