Fi Technical

I have 4 FI BL 12's and was wondering how many cubes net should I build an enclosure for them? Also how low should I tune to do hair tricks? They will be seeing a little over 6,000 watts of power.

well i started my box today for my 15" btl fully loaded, and i almost finished it (i had to work 1-9 today) my sub is going to be facing forward, and im kind of worried that the basket might break, or that it may mess the box up. i didnt double baffle it today, but tomorrow i am going to, im more worried that when i hit bumps and stuff the sub will torque the box and break the screws. also, is there a way to build a support for the motor, i was thinking just building a half circle out of mdt to fit under it with some sort of support to hold it up...

i have a box i was using for some other woofers in that i put to use in my trunk. here are the measurements 35x16x16 with divider and two four inch ports 8" long each i kinda wanna stay with this box for now because it fits perfectly. the problem is tuning what is this box tuned to and what should i change with the ports? the wood is 3/4 mdf. any suggestions? thanks oh yeah in case you didnt know 2 fi ssd12's copper option in the box.

As some of you are aware, I have a pair of Q15's sealed in a 4.4ft^3 enclosure. I had to build the box ackwardly to make it fit in a G35(sedan) trunk. I enjoy competing at local comps, but want to see if I can increase my output. I am pretty steady with hitting ~148db at the dash. My question for you box gurus is with the given specs of my sealed box only being 4.4ft^3 would I still get an output increase if I added a pair of external 4" aero ports (actually just pvc) and how long should they be to tune to ~34hz? Specs again: Sealed 4.4ft^3 (2) Q15's Desired tuning approx. 34hz using (2) 4" round ports What length?

My space is 39" wide and I can go 20" tall. How deep do I need to make the box (and how long AND wide does my slot port need to be) to have a net volume of 4-4.5cuft and a daily tuning of 30-33hz? Power will come from 2 sundown saz1500's strapped at 2ohm. Thanks

Hey scott, nick, or shawn, What box size and tuning frequency do yall suggest for my sub? The box I have it in now just isnt working. The sub sounds like it is bottoming out on certain frequencies and i only have the gain about a half of the way up. Its currently in a 2 cu. ft enclosure tuned to 33Hz. Any suggestions would be greatly appreciated.

well I have a single BTL18 now and was wondering the smallest box that 2 could fit in or if I might want to look at 2 15's. I have 36X30 for a box now and wondering how tall I would need to make it to fit either 1 more 18 or 2 15's also would like the tuneing around 35. If someone can help with this it would shure help. Thanks

im going to be getting a 15 Q soon going to be powered by a sundown 1200rms at 1 ohm and i need a box could someone suggest some box sizes and tunning i want it to be loud hit them lows hard

I just ordered a 15 bl today and im still pondering on what size box to get..do i go for a 3.0 cub box or a 4.0 cub box any help would be greatly appreciated

Fella's, I am running 2 BL 12's in a ported 4.23 cubic ft enclosure tuned at 33hz. Is this enclosure large enough for the BL subs? The enclosure is 1" thick all sides, braced inside 1" thick and has a 2" front baffle so i know its strong enough.

currently running a sundown saz1500 powering a fully loaded 12in fi bl in a 2.5 cu ft box tuned to 34 hz. I was recently at a local audio shop and had the main guy set my gains properly so i did no have any clipping. I was not very impressed with the outcome. As i come to find i had been running with clipping since day one and my system is now quieter. He told me to tune my box to 40-42hz and it would be louder. My question is how much louder? and will i still be able to play most rap music? What would be the lowest tone i could safely play?

Is the BP option really for people who want to compete? I'm looking for SQ in my 15 Q i'm getting. Is it something I should get or for people who just want to compete>? Thanks. Jess

Wheres the BP option when buying the 12 SSD? Is it not offered any more?

Am planning on using the Hifonics BXi2008 on 2 15 Fi Q's, would BP be necessary?

If one does decide to get this option does this by any means help increase the subs BL and if so do you guys have a estimated number...

Could I use a Brahma's 12 spoke basket on my BL, with an Fi recone kit to upgrade my 10" to a 12" ?

i recently ordered a fi q 10 and it came in today i hooked it up to my RF p6002 wired 4 ohms and when ever i turn the volume up i hear a awful rattling noise it sounds like it is coming from under the dust cap. i read through the forum and found another person that had the same problem and i think it said his dust cap broke the glue loose or something. if this is the problem how do i fix it? and what do i need to do to fix it? again this is a brand new sub and has never been used before. does fi even test the subs before sending them out?

Hey guys, first post! Haha. Well, I recently just received my 15" BTL in the mail. I was looking and it and noticed that there were no screw holes for mounting the sub to your box. So how do you mount it? Another question I had was, is there a special way that I should be breakin in the sub? I didn't know if there was a good way to do it. Thanks guys and appreciate all the feedback.

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.

I broke one of the terminals on my BL 10" yesterday when I was pulling it out of its box. The tinsels are fine and the sub is still working perfectly. But the terminal is moving up and down! I am thinking it is going to start vibrating once it gets moving! I dont know how Fi had it secured, I am thinking it was glued down, if so, what kind of glue should I use to reglue it?

alright for about 2 months now i have been breakin in my 15 inch bls...... so can i feed them more power now?? or should i stay the same?

i was driving down the road when my fi bl 12 cut out and never came back on. i went home and troubleshooted everything until i had everything tore apart at 5am only to find one of the leads on the subwoofer broke. i have no idea how this could have happened. i have it pared to a kicker zx 1000.1 amp running at 2 ohms. anyone know why/ how this could have happened and how i can get it replaced by nick or anyone else at fi??

scott or nick, or anybody else that knows i have a question. i have two 12's that i bought in germany and being the dummy that i am i dropped the box they were in and one of them completely broke the basket all the way around! the woofer is still good i was able to line it up and push down and the voicecoil isnt damaged all the surround and wires are still attached. the speaker looks like it has almost the same basket as my fi 12's is it possible to take the woofer and replace the basket so i don't have to buy new woofers yet?and if so can you guys do it? or can only certain speakers be re-attached like this?

I have read from many 04/05 XXX users that the tinsel sometimes break. My friends 12" just broke last week and we're trying to get some tinsel wires and there so hard to find. Forum members have told me to talk to scott or nick at Fi car audio to get some. Seems they might be busy since i didn't get a reply. Hoping they see this and respond back. thanks

the thread is much more developed here http://www.caraudio.com/forum/showthread.php?t=265327 but i will post here anyways, since i would like to get an idea of what some new tinsel will cost me so i can try to do a repair. so my btl stopped working today when i was listening to it on volume 35/70 on the highway. i thought maybe my wires came loose. get home, pull out the woofer and this is what i see at first glance i thought i clipped it. i take a look at the coil...its fine. never smelled anything either and everything is in the same condition as when i recieved the sub. and the other tinsels dont look burned to me at all. i am the third owner of the sub. it does loo…