Fi Technical

hey guys, i ordered 3 Q 18'' subs which i intened to use in a ported application but for some reason not sure how the high QTS option was selected..and in the options it says this is for only sealed applications..so i sent a email thinking i would be ok since it says there is a 30 day wait time but i just got a email saying my subs have shipped so im not sure if they got my email in time and made the change or not, so my question is how bad will it sound if i still throw them in a ported box even though they say the option is only for sealed applications?

what add ons should i get on a 15" BL if i plan to use it daily powered by a sundown 1500?

After hearing a BTL for the first time yesterday i have decided that i want one, really bad. I will only be pushing 2000 watts to each sub in a daily setup (no comps). Is there any point in getting the high XMax coil, does this loosen up the suspension for better SQ. the BTL that I saw was only getting 1500 watts and didnt seem to flex much so im not sure if the high xmax coil would really do anything. Thanks, Keith

I haven't purchased the Q yet but here is the box. Will the bracing get in the way or will I be good? I'll get measurements tomorrow of how far from the hole the bracing is and how many inches in between the two peices if that would help. Appreciate it!

Hey everybody i have a quick question, im thinking about buying a 15" Bl but i heard that if I just listen to rap and hip hop that the 15"Q would be the best is this true and also its gonna be running of a RF P1000 1bd do i need the bp power if i get the Q

I've never done a recone before, and I was wondering if there's instructions on exactly what needs to be done. And how to use the adheisive kit that comes from the website. Thanks for any help.

Alright im not realy sure about this so ill ask it here. I ordered 2 18in D2 Single stack recones with highxmax coils but there not flatwound. Is my order wrong? im under the assumption that these should be flatwound for better power handling and cooling.

I just designed my box and came and up with 12.37 sq inches of port per cube is that a little low? What does more sq inches of port per cube do? I also came up with about 4.03 cubes per sub before displacment I want to do a little larger what does everyone I think? My dimensions I used are 23width x 34height x 49 length. they will be in an 05 f150 with two kicker zx1500. 1 amps powering them for now will upgrade power. I know they give generall recomendations of 3-5 cubes per sub and 12-16 sq inches of port per cube. What is everyone else running? and what should I tune to? I did 27 hz my amps lowest is 25 hz and the way I understood what fi said was 2 above your amps lo…

I currenty have thhe two subs in a 4th order blowthrough off of a 4500d on 16 volts. Gains were set around 1/2 way and it pounded for bout 4 days. Then I decided to turn it up a little. Between 1/2 and 3/4. Now the subs don't seem near as loud to me..could it be I'm just gettinng used to them? I'm gonna check with the dmm tomorrow and read the coils and see how many watts the amp is putting out...I hope I didn't mess anything up:(

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?

i just planned to put my 18 btl in a 6th order bandpass (60 hz / 30 hz tuning) and i already got the wood sawed too. ive never tried a bp yet so i thought it would be nice to give it a chance. what do you think? is it better to put the btl in a big ported box or go with the 6 th order. i currently have a 5 cft ported box @ 30 hz but i want to increase efficiency and loudness of the box. amp is a bxi 2610.

i recenly got a 12inch bl and i just got it installed today and it is clipping i have an Alpine MRP-m1000, And the faceplate is an Pioneer - Model: DEH-2200UB i have the gain turned down but it isnt hardly hitting at all it is in a 2000 dodge intrepid and when i do turn it up you cant hear the clipping cant hear the clipping inside but once you open the trunk you can hear it clear as day here are the options for the sub Ohm: dual 1Hyper_Pole: noCooling: yes +$30Flatwind: yes +$15Daily_or_SPL: DailyUniversal: noDustcap: white

I've been E-mailing Scott from Fi Audio back and forth but it usually takes a while for response and i realize hes bussy at the dB Drag World Finals. I desperately need these specifications for my Fi X 12s. LE in Mega Hertz- Z in Ohms- PE in watts- Ive been trying to get this info for weeks now so that i can finally build my box. I would really appreciate it if someone could help. Thanks, Ben

Im looking for some peoples opinions on what to run to my bl 12 at 2 ohms.? comments are very welcomed

ok hello everyone, i dont know if this is the right topic for this forum but im starting to pull my hair out looking for a good solution.... i have a 1990 toyota celica gt does anybody know of a good high output alternator for this car? i would be happy with a 150 amp or higher my budject is 350 ive looked at ohio,mechaman,irragi,denso,powermaster and couldnt find anything those are the brands most people reccomend. i dont want to buy a brand i have no knowledge of and be a piece of crap. powerbastard has import universal one but ive heard bad reviews any body have a solid solution or idea? greatly appreciated..

Hey guys. Got a question concerning how much power to give a BTL. My previous system was a loaded 12" BL @ 1ohm load, and pushed by a 1500D amplifier with gains at about 7/10 and 4V headunit @ 22/35. I figure it was about 1200RMS? Now, I see all these people with BTL's saying they push them with 3500RMS+. I just don't see how that's going to be possible.. I'm asking because I figured I could get away with running a 2500D amp for a single loaded 12" Fi BTL . Should I really be looking at more powerful amps?

FI please remember to add the shipping address to your shipping labels! not just the city and state grrrr... Was looking forward to my Q, guess I get to wait a bit longer until UPS figures out my address. Hopefully you guys are not out on Vacation... I need to vent

I know that posted t/s paremeters on ficaraudio.com are for the stock BTL with no options. would it be possible to get the t/s params for the common fully loaded BTL built for daily music? Just curious to see how it changes, and I know you guys will always say stick to recommended box design, but it would still help me to have the t/s params.

I recently purchased 2 Q15's and I'm going to have them in a custom made sealed box in the back of my car. I don't know what a good amp would be for them, so I'm looking for suggestions. Thanks. Specs from my order: - 2x Q15s - Dual 2 Ohm - Cooling: Yes - P Chamfer: Yes - High QTS: Yes - Spider: Yes - I Heat Ring: Yes - Internal Lead: Yes - Rms: 1500W

I have emailed the address available on the site and havent received a reply. I need the specs for the new 18" btl fully loaded.

I wired up my BL 15 D2, eveything is wired correctly but the sub barly moves... im powing it with a 1700 watts amp... and i set it right... is the a wiring problem or my amp? or the sub? any opinions?

i. I have an old Fi Q that I need to get reconed. When I cut up the soft parts and cleaned up the basket I. Saw it had "Q D2". I figured that would give away the time period in which it was made. I was wondering the power handling of the magnet, as I was thinking of reconing it with a BL recone kit. Could I do that with a Q magnet? I have a mmatts d300hc reconing it to a dual 1 would be my plan. Could the BL recone work with this magnet?

Will a 15" Fi Q with BP power be ok on a AQ2200D amp at 2 ohms (1300 watts) or will that be to much power?

I need some help with the dimensions of my slot port before I go ahead and make a disaster. I have a 15" SSD in a 3.8 cuft box. I'd like to tune it to 33Hz as per Fi's recommendation Using one of those online calculators I got the following dimensions 3"H x 6"W x 5.22 L Does that look right? How would that be affected if I wanted to make 2 ports? Any help would be appreciated