Fi Technical

Adrie Brahma MK I Motor can it be reconed from fi? thanks

I have never had this problem untill I started using my FI sub... So hopfully someone can shed some light on the subject.. When hitting major bass notes on full tilt, the amp shuts off and shows CUR..Which is excessive current. What is this and how the hell do I fix it?

i was wondering if you guys would help me get my port lengths and areas down. i just reciveved my btl 18" yesterday and looking to build the box right now i am looking at having a 7 cu ft after displacemnet. i alos think i want it tuned to about 32 hz. i t will be square port

I am getting the 15" Q w/bp power but my amp is a profile ap2000 and only puts out 960 rms bridged at 4 ohms. How can I hook up another amp so that I have about 1500 rms going to the sub and also some new 6x8's that I will be putting in?

im currently in the process of building my system using the said products in the Title.. my question are, will this amp be good if not perfect for the 18" BTL fully loaded? is the amp stable at 1 ohm? ive seen the specs of this amp but im kinda confused cause it was only CEA certified at 2000wrms @ 2ohms. i'll be adding a Kinetik HC2400 battery using a 90 amp stock alt and a regular battery? do you think my electricals can handle my system? and lastly, im gonna jail the sub with a 5cu.ft. (net) enclosure tuned at around 30 to 33Hz. will this planned system work? oh and btw, is that amp even good enough to work with in the first place?

This is my setup: A US Acoustics USB-2150 rated for 450 watts x 1 @ 4 ohms powering an 18" Fi Audio IB3 at 4 ohms. I have a seemingly solid install now, but my score has stayed the same, 132 and change on both the termlab and my spl labs lcd bass meter. Check out my build HERE. I decided to test the output of one of my sub amps. I tested with tones from 25hz to 65hz. I checked the AC voltage output of the amp. Simultaneously I checked the output amperage to the sub at the positive wire to the sub. With these numbers I calculated the wattage by multiplying the volts times the amps. I also calculated the impedance by dividing the voltage by amperage. This is what I got 25Hz…

What do I sacrifice by choosing this option? and can I run 2k to my BL's if I pick this and the other power handling options?

Im getting a Fi SSD 15". I need to know what options to get and what i should get for an amp. Its GOING TO BE A DAILY SUB THAT WILL BEAT TO ITS MAX EVERY DAY. I want to go with the hifonics brand amp and wonder which is right. I myself think it'll take 1,500 rms no prob. These are the amps im considering... I want to get a 4.0 cu ft box tuned to 32 hz HIFONICS TXI1508D ---------1,500 rms HIFONICS-BXI1608D ---------1,600 rms HIFONICS BXI1208D----------1,200 rms All are 1ohm stable Im going with hifonics cause they are affordable but open to others. i only have like 400 for an amp.

Just wondering... Does the Hixm coil has better efficiency in comparison with the standard BTL coil?What are the pros and cons when using the first in SPL /power handling/output? Is there any signifficant difference in the subs sensitivity? A few days i have watched some tests on some new quad stacked motor subs and i wondered if it would make any difference if the coils were put a little higher than they originaly ought to be put (like 4-5 windings were out of the motor top instead of putting all the coil in the magnet gap)

I will pass my phone number on si I can speak with you since I will not have access to a computer for most of the day I need to buy 4 15" BTL's fully loaded with the best SPL options I need them absolute latest by monday or tuesday or even wednesday morning next week for the 3x db drag in Niagara Falls Ontario on the 28 & 29th I also need t o talk to you about the coil configs and the options of the motors sorry i posted this in the wrong forum

Buddy of mine has 2 bl 18's ran off 1 sundown 2500d, he has them in slot port now in about 12.5 cubes gross. They sound decent, but dont really have the lows, and its tuned to 32hz. He wants new box with 4 6" aeros's in about 16 cubes net tuned to 32hz. How does this sound for size? I ran 2 bl 18's about 2 years ago off 2 sundown 1500d's in about 18 cubes net with slot port and they pounded the lows, and sounded perfect. I just havent done any builds with aero ports.

So I got a 15" Fi Q for Christmas. Everything else that I need for my system I have as well. The only thing that is missing is a subwoofer box. Originally to save some money I was gonna build my own sealed enclosure. But after talking to some of my friends and family I decided to get a professionally made box. Here's the problem though, the only site that I've managed to find is, www.klausaudio.com. And while the site looks great and the options for customizing your box is superb, they're not taking orders right now. (Or responding to my frickin e-mails...) So I wonder if you guys knew any other respected custom box dealers/makers. P.S. Since I want a sealed enclosure I w…

I have been looking at getting a fi bl 15 for my 2002 nissan sentra and was wondering if i could fit the box needed for this sub in my trunk? Also what options should i get i want the real low deep kinda bass? and what amp would be best for my budget i would like to stay under 500 for the amp and im not sure which would be best for me and where i dont have to do the big 3 any ideas or help would be great thanks

I own a 2003 Mustang GT, and am trying to get the best system I can in it. I have VERY limited trunk space and so chose a single fully loaded 12" BTL powered by a Kicker ZX2500.1 (2500 watts RMS into one channel @ 2 ohms). I also have a kinetic 2500 in the trunk. The trunk opening is too small to get any sized box thru so I'll be installing it thru the back seat. The opening is 13" high by 32" wide, and 28" deep. I'm looking for a ported box to get the most bang out of the sub. Anyone got the best design for the BTL with the max dimensions (13x32x28)? Thanks.

hey guys i just ordered my FI BTL and since i know they are swamped with orders im in no hurry to build a box. i would rather take my time and do it rite. i just need some suggestions on how big to make it and maybe a design. measurements for my vehicle are 44.5x17.25x33 and its going in a 2006 king ranch expedition. its an 18'' btl and i would like to tune the box to 32 htz oh and i have a hifonics bxi2610d and am ordering a DC power HO alt i have 2 yellowtops with lots and lots of 0guage if i left any info out let me know, still kinda new to the forum

just finished reconing my 18" BTL a few days ago.. been breaking it in at low volume.. after i thought it was broken in, i turned it up slowly and as i started getting to about 1/4-3/8s level of where i would normally play at my sub makes some what of a clicking noise to the sound of the bass, kinda sounds like plastic on plastic nocking/rattling.. any ideas from any one here as to what it could be ? havent pulled the sub out of the box yet to check anything, dont want to if i dont have to..

Hey, this is my first post here at the SSA forum (oh whoopee ).... My question (YES, QUESTION!) concerns the tuning and enclosure sizing for the Fi Q18 D2! Firstly, I'm not too sure about the relationship between enclosure volume and tuning frequency. I did see the enclosure sticky, but am tuning differently than the sticky shows and am also not sure if the size stays the same for all tunings or not...I'm thinking it changes. I plan to tune to 16hz and wondered if 30ft

Hey, I've been looking at Fi car audio for a while to help fix my BMW's horrible lack of bass. I was originally looking at the 12" Q but after reading around I decided that the BL would better suit my needs, I now am at this problem I know my trunk can fit the optimum box dimensions for the 10" and 12" but I dont really want to sacrifice all that space but then I want it to also to be hitting pretty hard. Also whats a good amp recommendation for the best price/performance

well like i stated on someone elses thread, my tinsel lead broke and i really felt the woofer didn't sound the same anymore. i was just looking at it and noticed that the surround is starting to crack around where it meets the cone. and i also need a terminal which i broke a long time ago. my question's.... do i order the recone an do it myself? never done it, so i'm kinda wanting to try it. do i send it back to fi and have them do it? i built a box for another guy in hawaii that has a btl and was wondering if they could do my tinsels like his? or, do i buy a new woofer, because shipping back and forth might be kinda pricey? any and all suggestions welcome and …

Alright, im kind of tossing the idea around between two setups in the trunk of my Crown Vic. Setup one is (1) FI BTL N2 18" in 7 cubic feet net tuned to 32hz. Setup two is (2) FI BTL N2 15s in 8 cubic feet net tuned to 32hz. Here is my problem and question, the first setup with the single BTL will slide right in my trunk with no issues using the box design and cut sheet posted on this forum for it, but the second setup is the issue. Can I run the BTL 15s in a smaller box than 4 cubic feet net each and still get optimal performance? Id like to shrink the box and bump up the tuning to 34-35hz if thats possible. 3 to 3.5 cubic feet per sub would be a much easier fit for …

I ordered a re cone kit for a 15" RE SE 12 spoke basket/motor. I opted for the double spider option, internal leads, etc fully loaded. About how much power can this sub now handle? I did not see any specifications on the re cone page. Thanks for help in advance

If someone could show me a cut sheet for 2 12" Fi BL's it'd be perfect. I took a look at the single 12" cut sheet but I would like one for 2, just so I'm sure on the demensions and what not. I'm a bit of a noob when it comes to building enclosure's so help would be appreciated!

hi i wanna buld a new box for my bl15 i have my 15 bl in a 3.25 cuft box right now, my question is if i make a biger box lets say 5 cuft after port and sub displacement would it get louder thant what i got??? i wanna know if its realy worth it building a biger box.

Does aero style ports still fall in the recommended 12-16 CBF range? Was thinking of a single 10" in a 6cbf loud daily tuned around 32-33 range or maybe 2x7" what do you guys think?

Can someone tell me why about 1/4 of the spider would be torn and a lil crispy and the rest be fine? the coil looks fine too btw...powered by a KX1200.1 in a 2.6 internal sealed enclosure...it smells AND feels as if it were on fire...the gains were fine and everything, i wasnt even playing full tilt when all the sudden...silence, no pop or any sound, just no bass and the smell