Fi Technical

Hello to my friends in the audio world... As the title states... i was wondering what would get louder.. four 15'' fi q on 3000 watts or four 15''fi ssd on same said power...it would be in the same enclousure and same port freq....30 hz there about... i guess what i am really asking is...would the Qs get louder thant the ssd even with 750 watts to each....thanks for help in advance

Hey all. I'm going to build a sealed box for my 10" Fi Q woofer. It says the mounting depth is 6.5" for that driver. How much clearance should I have behind that woofer in the box to ensure adequate ventilation? I want my box to be as shallow as possible to save on some trunk space. Thank you.

http://youtube.com/watch?v=fU3nZ-l4vxg just curious my old setup was a 3.5 cubed box with 36" of port. the port was on the right of the box 2"x18" it was narrow. anyways my sub was in the middle both facing forward. it was loud it got really low and moved alot of air. the link above is my new setup. the lows dont really move alot of air like the old. is it because of having to ports. or is the box design not right. the only difference of the new and the old is the new hits highs very good it hurts your ears very badly. why do some people put there subs on one end of the box with the port at the other does that make it louder. i need help with a better box i think. i want …

it was making a popping sound a few days ago. then yesterday it happened the coil broke from the cone. im going to try in glue it back witch glue should i use ?

Howdy, I've been in the planning stages on this for a while and I think I've got it figured out. I'm going for 4 x BTL 12's Fully loaded in this wall: The specs are like this: 19.69 cubes gross 16 cubes net (Subs and Ports removed) 4 cubes per sub Tuned to 32hz with 266.875 sq. in. of port I'd like to run dual 2 ohm BTL's and have each one off of a Orion HCCA-D5000 so roughly 2500 watts RMS per sub (10k total). I'm planning to run all Knu Konceptz 1/0 wire with multiple runs to a battery bank of 6 Kinetik HC2400's in the trunk and 2 200 amp alts. So my question is, do these specs look good for the subs and such?

OK so i have a hifonics 1606 powering one 12 Q and i have the gain turned all the way down and the multi meter is reading 36.6 volts and if i turn the gain up to about half way it reads like 55 v. i am confused and my headunit is only 2 v preouts what is goin on, is there anywone that lives in so cal that can help me set my gains and check my setup because i am either just plain stupid or something is wrong.

Here is my problem/hold up. I am getting a new truck, one for pure audio fun, full size of course. I will be doing a cut through, so the entire bed is game. I want tons of SPL, enough to make your stomach almost turn. I want 4 15's and am not sure what to go with BTL or BL. I know I need some good amps to push them. What all power wise (wires, alt, extra batteries) would I need and about how much/where can I get a alternator from. I have some crap P3's now and want to do a massive jump up. I got addicted and my friends are killin me, want to destroy them. Thanks

Im purchasing 1 fi btl n2 18 inch, and im not sure whether to choose dual 1 ohm or dual 2 ohm. I have a 4000 watt mono amp with a lowest possible rating of 1 ohm. I used to have 2 12s but im moving to this 1 18 inch and wish to have it running at 1 ohm. Ive read around and from what ive heard, i should go with the dual 2 ohm sub, but i wanted to be sure before this purchase. thanks for your help

I have a 15" Soundsplinter RL-p thats in need of a recone. Sub works fine, just the cone is starting to seperate from the surround. Tryed CA glue and it worked well for a while, but its coming lose again. I was wondering if a recone was possible for this sub. BTW, I sent a email to Nick a few weeks ago, but didnt get a response, so I decided to make this thread to possible get a solution. Thanks.

Well guy im new to this forum so Hi . Now to the question... I have just bought an 18" btl fully loaded with the spl option, and from what I read on here you cant play music at all with it wich is not my intentions. I want to be able to play music and not just a tone. I have just emailed trying to get my order changed to the Daily option. If it dosent go through will the Spl option really not be able to play my songs at all? Im really hoping I just didnt waste 500$...

I Have 2 12 Inch Fi BL's and i dont know what amp i should go with i was leaning towards a sundown audio 2000D but also was looking at soundstream PCX 2000D .. any suggestions on what i should do ?

Driving along one day and my 12" SSD cuts out. Its in a sealed 1.1 cu ft box. I l=pulled the sub out of the box, and noticed that an internal lead on each of the voice coils has come undone and is frayed. (Photo: http://www.i.imgur.com/jCFOwGQ.jpg) I called the shop i got it installed at, and they said they don't touch sub repairs. Is this something that can be repaired? Am i Going to have to send it in to Fi to get reconed? Does anyone know a good shop in the SF Bay Area that could fix this? Also, after a bit more research, it seems this can happen when using an improper sized box. But i was using the Fi recommended 1.1 cu ft for a sealed box. But I do not have the…

getting two 12inch BTL's fully loaded, dual 2 whats the optimal cubic feet this box should consist of and optimal port size

I was driving to San Francisco today listening to music in the car not all that loud and about 3/4 of the trip I noticed that the brakes started to respond slower. For example, I'd press down the brakes 1/3 of the way down and it won't respond until I press halfway down until the brakes even start working. By the time I arrived in the city, I popped the hood and I noticed that the wires were coming loose from the fuse holder. What's even worse was that the wire was in contact with something metal and I saw some burn marks with something black that melted as well, probably plastic. Anyways, I made it safely, but it turns out I didn't do a great job with the wiring. Althoug…

I'm about to recone my N2s, as well as changing the size of the basket. Shipping is over $160 to Fi and back and that's a real bank breaker for a poor guy like myself. How easy is it to change the basket on the N2s, and is it easy enough to recone a sub by an average joe?

is there anyway i can do three ported btl'15.. H=17" W=47 D=31

First i want to say hello, first time posting here (hope its in the right section) and after hours and hours of searching and learning i figured i would ask you guys. Well my old system ended up taking a crap on me, the 7 year old crossfire cfa-402 amp i had finally died (still kept the amp) so i upgraded to a Alpine mrp-m1000 amp to give me some room to upgrade, about 4 weeks later my sub died due to my stupidity of not keeping my finger off the volume knob (mtx 5500 15"). but hey i bought it 3 years ago before i knew anything about car audio and it was only $164 and i know i can get alot better from Fi. So now I'm without bass and I'm looking to upgrade to Fi since i …

i have 2 10" Q's sealed, when i installed them i set the amp, after a few days i noticed they could take more (with out hearing a pop sound) so i adjusted the amp higher, i have done this twice now........ just want to make sure this is normal.

I'm planning on getting a 12" Fi Q (dual 1 ohm with cooling, spider and heat ring) and putting it in a ported box and I am on the hunt for an amp to boot. I think I found what i want and its a Hifonics HFi1000D but i also saw a Hifonics HFi1200D for $50 more so i was wondering if its a good idea to go with the extra 200 watts and if i should just stay around 1000 watts since thats what the sub is rated at. http://www.sonicelectronix.com/item_23548_Hifonics-Brutus-BRZ1200.1D.html http://www.sonicelectronix.com/item_22705_Hifonics-HFi1000D.html edit: added the amps link.

I need to know what kind of re cone i can get for this blown RE Audio HC Quad Coil or if i can even get one.. i would like to make it a dual 2 or something wondering what series you think it would stand up to with the FI's i mean this HC is tripple stacked magnet but i dont think its a BTL... i could be wrong thou. Let me know thanks Jesse..

Im getting a fi btl n3 18 and haven't been able to find any dimensions to build a box. Can someone please give me dimensions to build a box and I want to tune the box to 32hz and pictures would be great too

So I just ordered two of these X 10's without really paying close attention. I have an Audiopipe APSM1300 amp that does 600@2ohm and 1000@1ohm. My question is are these subs maybe a little underrated because I've also read these amps might be a little overrated. I can always turn the gains and bass level down and go easy on the volume knob. Does this sound like it may work? I dont really have much more of a budget for subs. Im also not looking to be real loud.

well im planning on buying a Fi Q 12" either putting the order during this week, well the thing is that i already have the box for 1 12" it is 29w x 14h x 14d making it 2.48 cuft, 2.32 after displacement of the Fi q (.16) i went to www.the12volt.com and the calculator said that if i used a 4" diameter port it would have to be 11.33" ifor a 32hz. is that right? anyone, scott? thanks

I have a 94 cadillac fleetwood I am trying to find the best way to put 2 18" btl fully loaded in the trunk I have 2 t40001d rf amps and enough juice to run it all I just need to find out wat everyone thinks will be the best way to due it. Also is it ok to put the ports on the outsid of the box so that way i can keep the cubic foot in the enclosure at the max

Ive been looking into a sp4 18 and have a few questions, hoping to find somone on the fourms instead of flooding fi with emails atm. Would running a cresendo 3500 to a single 18 sp4 at .7 be to much? Also how many cubes should i go with with 1 18 on 3500 tuned to 32hz. I would be getting the sub with all the opitions also if that makes a differnce in power handling. Thanks guys!!