Fi Technical

Hello all. I am currently running my 10" Fi ssd woofer in custom built ported box (sub up/port back). I love it! I have a kid on the way and would like to switch to a smaller sealed box for more space. I have a couple of questions: 1. Can purchase a prefab box that meets the recommened specs? 2. What size would be optimal? .6-1 cubic feet is what is recommended but would it be better to stay on the .6 side or the 1 cubic foot side? Thank you in advance...

i need to order a recone and basket for my MT motor..and ive heard statements on both sides of my question. does the BTL coil fit in the MT gap?

If I were to order 3/4 MDF boards from Home Depot. How much should I get? I want to get a LITTLE more then I should get, but not an overload of it. This is for a 20H x 25W x 20D box that will hold a 15" BTL. Thanks, -Curt

Could a X10 with the BP power option be put in a larger box than .55cuft sealed? I have a box that is ~.75cuft and another that is ~1.2 cuft. Both sealed. Just curious how/if it would work in one of the larger boxes. With the BP option, what rms can I expect to run in the .55cuft box? And if poss what rms in the larger boxes? Thanks

I am wanting to know if these numbers are sufficient for a vented enclosure for for a 12" BL. I will have it hooked up to a MTX TA81001 A 1 ohm in the trunk of my 06 Honda Civic. Any suggestions would be greatly appreciated. Width: 36" Height: 18" Depth: 15" Port Height: 16.5" Port Width: 2.5" Port Length 1: 11.75" Port Length 2: 6" Total Port Length: 22.25" Port Area: 41.25" Internal Port Volume: 917.8125" Port Volume Displacement: 930.5625" Box Volume: 3.909 cubic ft Tuned Frequency: 32 Hz

i have 2 15 qs and i was planning on putting them in a 08 honda accord, any suggestions on whut box to throw them in, ported?sealed? really not sure on whut direction to go with this

What have you found to be a "sweet spot" for your 12" Q??! i'm running a SAE 1000D to it at 1 ohm. with BP option. i'm looking for both sealed and ported enclosure sweet spots. share your views here. by sweet spot i'm talking about where it makes you jizz when you hear it. come on don't hold back. i want it to be loud, but clean and tight, just like our women!.. well with the exception of the loudness, thats no good with the ladies lets hear it!

Hey guys it's been a while since I've posted on here and I just wanted to know what yall think. I've got a 2nd generation BTL and I'm thinking about selling it and upgrading. Which would be louder 2 BTL's or 4 X's both scenarios would be 15's? I know the more the surface area the louder but would the power make any difference in the application. Any suggestions would be helpful. Thanks

Hey guys!!! So I am currently running a box built from Dave the box guy. Its 2.5 cubes after displacement, tuned at 35 hz. I have a the ssd with flatwound and bp power, a 2010 model. Anyway, I LOVE the way this thing sounds. But I got to thinking.. I know that Fi Recommends the max ported box space to be 2.5 cubes, and thats what I run. But I am still a novice, and got curious about mechanical handling... Would running this at 1000 watts rms daily (MB Quart ONX 1500.D amp) be okay to do? Cuz thats what I am running, with the amp tuned as well. Just wanted to make sure that may check out okay, or do I need to reduce my amps tuning? Thanks guys! -Chance

i came up on a deal. both subs are 15" BL's, both have cooling, flatwind, and the daily option. 1 however has extreme leads, and the other has regular leads. will this cause problems between the drivers or is it ok to run them together? i know the extremem leads can cause slapping, but is that the only downfall?

ive had a fi x 12 for a while now in a standard ported box i built. i want to spice it up a little by building a 4th order bandpass. Problem is i dont know the calculations for it. If someone could give me a hand in this it would be much appreciated. iw ould like to tune it to 35. if not that than 40.

i am ready to purchase the fi bl 12. i have a hifionics brutus amp 1600 watts and i want to run it at 1ohm what option do i need on my speaker to run it at 1 ohm...??? dual 1 ohm or dual 2 ohm thanks in advance

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

I ran 2 fi bl 18's 3 or 4 years ago off 2 sundown 1500s in like 15 cubes net. Now I am looking at running them again in a scion xb. I have a box already that is 12 cubes net @ 32hz, how well would the bl 18's do in this box off sundown 3500d? Would it be too small, the site says 5-8 cubes each. thanks for any help

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i have a home audio 15" powered sub that needs replaced was wondering if could drop a IB3 in it if it would be alright? Thanks Jesse

I want to build a console box in my single cab truck and im trying to see which would be the best. Setup 1: 2 Fi X 12 D4's ported Setup 2: 3 Fi X 12 D4's sealed Setup 3: 2 Re SE 10 D4's ported or sealed Setup 4: 2 Fi SSD 10 D1's ported or sealed Only reason im considering Setup 3 because I can save about 80 dollars on the subs over Setup 4. And im trying to be louder than a buddy of mine with one RE SX/BL 12 Hybrid ported as a console box.

How do you guys go about breaking your sub in? Do you let it break itself in overtime or do you play a nice tone to help exercise its suspension? Well I should be receiving my 15" full loaded BL today and I can't wait till I get home to get it so im looking to exercise the suspension so that it can be broken in for the weekends upcoming local comp event.

Hi guys ! I was wondeering if can all help me out.. I purshased 2 12' Fibtl Fully loaded and after all I descided to try on with 1 first . I hoocked it up to a Hifonics Colossus XXV and wired it a 1ohm ...after like 5 minutes of playing time...the sub was working on and off. To me it looks like when it gets warmed up the sub completly stops working...but if I leave it cool off..it will work for a minimal amount of time. My amps never lost power and always stayed on. Do you guys think I blew the sub ??? or should I try to rewire the sub to a higher ohm ??? Thanks for all your inputs and help on getting my problem resolved !

How much does the slug only, on the new BTL weigh? Also, how is the top plate and t-yoke manufactured? Is it milled, molded, cast?

I have a pair of 10" BL's and chose the SPL option when I bought them. I had no intentions of playing music with them, but now I wonder if they'll handle playing music for a short period of time. I was thinking of trying Bass Race in Db Drags next season but don't want to have to buy new subs in order to do it. Does anyone know if these subs with the SPL option will handle music for 30 seconds at a time at full power?

my glue is coming loose from the surround to the basket what can i use to reglue

Ok I've been trying to get my subs reconed for about three weeks now, I already know that they wont be covered under warranty because I overpowered them, but i have the money to get them fixed so if someone that works for fi could send me some info to get me on the right track, i would greatly appreciate it. Subs are:( 2) FI Q 15's D1 w/ BP power. THanks

I have 2 Konaki 12's with Incriminator Audio recones on them. Overall they sound great and hit the lows great, but the power handling is lacking. I have them both on a Crunch GP3000D-Pro which is putting out between 2500-3000 watts given my electrical right now. The amp is set correctly and the system thumps hard, but it seems like they bottom out wayyyy too easily. I play a lot of low stuff (<36hz) and when I turn it up too loud, the subs bottom out. Basically, I'm wondering if Fi would have any options to boost my power handling to 1500+ watts a piece and maybe some spiders that would stay stiff and allow me to play low frequencies at high volumes without bottoming o…

I have a old kicker SX 1250.1 amp. its rated 1250+ at 1 ohmn. my question is what would be better for the sub and amp? 1 or 2 ohmn's? the 1 would be getting more watts so it would be louder but if i ever switch amps will that effect the 1 ohmn? the sub would be a 12in Fi BTl N1 sub, its rated at 2000rms, idk which to get 1 or 2?