Fi Technical

I have 2 btl 18s, 220 amp alt, kicker 1/0 wire 2 aq 3500's (should be here monday). I am currently building my box and have NEVER ran with this much power before so I wanted to make my box a little smaller than my old one I am looking at about 11 cubes net tuned to 36 hz 152 square inch port. I just would like some input if I should go bigger or smaller on the box please input asap...oh ya by the way the subs are dual 2 ohm fully loaded ( I have pics of my equip if anyone needs proof lol)

ok guys, currently now I have an 18" BL fully loaded for daily. Its being powered by a JBL BP1200.1 at 1200 watts. Its in a 5 cu ft box tuned to 30Hz firing upward. The reason it is firing upward is because I cannot fit an 18" into my trunk rear facing. With a 15" though...I would be able to fit it rear firing into my trunk. So my question is...what sort of difference would i see? obviously i'd see a drop in ouput i'd imagine...but at the saem time, would it be noticable? Right now my BL is fully loaded for daily driving (daily option, flat wind, cooling). So at 1200 watts, even though its 200 over RMS, it isn't really pushing the sub to that much of its capability im gu…

I was wondering if any one knows the true RMS rating for the Earthquake PHD5000, Kicker 1200.1, Massive audio P3000.1, AUTOTEK MM4000D, MA AUDIO HK802SX, Orion 2100, and Hifonics bxi2006d or Hifonics bxi1606d? I am just trying to figure out witch amps to go with when I run my stereo. If any has tested any of these amps please let me know. Also I would like to know if any one has ran one 12" BTL daily in a trunked car and had it metered to music? If so please post your scores on here along with pics of your installs or your car getting the score. Once I get mine I will let you know what it does with a bunch of different amps. Hopefully I will have it posted on here by next…

2 18in btl's fully loaded 12 cuft tune 34hz Port wide 18.5 in height 5 in lenth 10 in That is 185 sq in 12 x 15.42 = 185.04 right? thanks

I recently had a s10 ext cab with a 15 inch bl in it which im now selling because I traded it in on a silverado ss....oddly enough bigger truck does not mean more sub room sadly so it won't fit. Ive looked around alot and can't seem to find a case where someone used 2 12s in a ported box under the rear seat of the silverado and im not a fan of sealed boxes but it looks like thats my only option unless smoene could suggest something else. Was thinking 2 12 q's or ssds running off my memphis pr1000.1 amp and im not sure if i want them forward facing or downward facing, Im sure i could get a little more airspace if they were forward facing but does it really matter which way…

Was wondering if those cut sheets are still optimum to today's Fi Q12?? I'm purchasing one at the end of this month and would like to build the box while I wait for delivery. Going for a ported enclosure but for fun was gonna build a sealed too and check them both out. Thinking of getting the sub fully loaded with every feature just cause I can and run it on a Q1-1200D from Soundqubed at 1ohm producing 1200watts. It will be in a 2005 jimmy 2 door so room is not a factor. I listen to all types of music and would love clear crisp bass but also able to bump it when I feel like it. I know there is no magic box that gives me both SQ and SPL just want good sounds on musical mu…

Anyone have custom box dimensions for two 15" ssd?

I dont know if I should go sealed or ported? I listend to all types of music but mostly dance that has some hard hitting and low bass. I wouldnt like to sacrafice my whole trunk if possible and this will be pushed by a sundown 1000d

My current box pounds in the 30-32hz range and I love it but I also love to compete in local competitions so I need a new box for all out spl. My trucks frequency is 41hz. Can someone help me with the correct box volume and port specs for a box that will peak at 41hz for spl only? The subs are a pair of Fi Bl 18s. Thanks.

currently i have a 12" BL in a 2.5 cuft enclosure tuned to 32hz. it is being powered by a "1600" watt hifonics amp (soon to be a sundown saz-1500d). i LOVE how the sub takes on the task of playing songs such as hypnotize, white girl, etc... however when i slap in a cd of something other than rap... there is little bass, if any at all. would changing what my enclosure is tuned to give more response on kickdrums and the like? what i am looking for is something in between the notes in rap and the notes from kickdrums,etc... from other genres. thanks in advance for any all and suggestions

Im wondering what amp to run for a dual 2 ohm btl 15 with cooling, HiXmCoil, Daily, I Heat Ring. what would be the best bang for the buck? My budget is around about 600 but will pay more if its worth it. Thanks

I have a Fi Bl 12" which is fully loaded and i need to build another box for it. I think my first one is not the correct dimensions for this speaker. Are there any good tutorials or even someone with a box design. I want to make one with 33Hz Thanks a lot Patrick

Hi i was wondering if you guys could make a recone for these subs. #1 AudioQue HDC3 15 #2 DC SOUNDS Level 4 15 Both dual 2's What soft parts will be used and how much? You can post here, PM or email me [email protected] thanks in advance.

Will 15" BTL's work in a ported box for DD 9515 subs. Port area is 165" per sub and port is 9" deep. This is what I was told to use for the DD subs. This is a SPL set up only. I know this is more than FI recomends for port area. Total box area is about 17-18 cubic feet.

Im looking at getting 2 subwoofers. Trying to decide between the SSD10, SSD12, Q10, or Q12. This will be a sealed with about .9 to 1.2 of airspace-haven't decided, depends on subs. Between the SSD and the Q which sounds better sealed/louder in sealed. What options would be best. I have read the descriptions of the different wires and still dont know what peaking is meant to be. -what effects will the flatwind coil or copper have on the power handling and sound quality and loudness. Peaking? better for sealed? -Is the BP option worth it in sealed. Will any of the options help reduce the subs heat in the seal enclosure. The subs will be sharing the power of a kicker zx…

sorry to be busting balls... please search ur email for "Recones & OEM work" from [email protected] or [email protected] thanx Scott

Hello all Long story short. My friend told me to check out FI Audio. I surfed through the FI forums for days and have concluded that the SSD or Q line sub woofers will do everything I need. There are several extra options for each series. I ask you experts, what do you think is best for my application. Ohm load on the amps and cuft of the box are limiting factors. Amps: Two RF 500m's (if you are not familiar with the watts RMS or ohm configurations of these amps ask...I will explain them) Ohms limitations: min 2ohm mono load per amp or min 4ohm load in a bridge mono configuration using both amps. Box Space Ideal limit: 4cuft total or less Open options: speaker siz…

I am looking for a recone for an SSA Icon motor and was wondering if you could do it. I am looking for max SQ as it is going to be for home use with a pair of B&W DM603 speakers. I also need a basket, I am looking for a 12" recone and basket.

Im just hopin that someone can help me out with gettin the info to order a FI Sub i have a alpine type x and it aint the bass im looking for and ive been watching steve meade and its just WOW!!! and a guy came by my school (Mobile Technical Training) with two 12's and it made the whole car shake i even have a video of it but yea i live in the Virgin Islands and i would like to know how much would it cost and if its possible for me to get it cause i really want one, thanks to anyone who can help me with this.

I was wondering how much it would cost and if it could be done. I want to turn my 18" btl into a twelve. Can I just buy a basket and recone or will the motor need tooling? thanks for any help.

How would having an enclosure bigger than the recommended box volume affect my system. I am planning on ordering a 12" SSD w/ copper coil. I am trying to save money on this system which isn't something I'm used to since I usually go all out. I was thinking of buying an already made enclosure to cut down on costs. I'd like to know how this would affect the sub's performance. Here's the box I was looking at: http://sonicelectronix.com/item_7521_Sonic...Box-+1SA12.html Thanks!

Alright, vehicle is a 99' infiniti i30, 4 door sedan, I have two 15" Q's on a crunch 3000d-pro. The enclosure is 7.2 cuft after port, and displacement, tuned to 32.5hz. It gets pretty loud, but kind of a empty not real full sounding bass. The enclosure is built into the trunk with the woofers mounted invertedly, so that the magnets are pointed toward the back of the backseat. the port is firing out of the top of the box through a hole in the rear deck. It sounds like there is a lot of cancellation, and when I open the trunk and crank the system it sounds way better and hits the lows way better. I understand this is some sort of phase issue I believe, and have had o…

Just got this with copper coils. What gauge speaker cable should I use? I was going to feed it 700 watts RMS.

Ok, I Have the Pioneer AVH-P5000 HU, an AQ-2200 amp, and 2 Fi Q 15s that are in a 5.5 cu.ft ported enclosure after all displacement that is tuned to 35 Hz. The HU has a RAC output of 4 Volts so i match that voltage as close as possible (3.9V). I tuned my enclosure to 35Hz so my Subsonic level is set to 30Hz. I know that the gain is the most important setting to any amp, followed by the Subsonic filter if you have a ported enclosure. Now am trying to find out how to set my Bass Boost and Low Pass Filter. I looked through the forum found info on the Gain and Subsonic filter but couldnt find anything on the BB or LPF. Are they just set by ear or do they have parameters. Can …

I used to get Chris @fishercustoms to do my box designs but their forum is not active much and Im not sure if he still does them. Who else does designs, need for 2 FI BL 18's in a wall in a 2012 scion xb