Fi Technical

hey guys, im gettin either 1 or 2 amps, here are my options, 1 of these bridged http://www.sonicelectronix.com/item_12212_...+BXi+2608D.html or 2 of these http://www.sonicelectronix.com/item_12210_...+BXi+1208D.html these are mono d class amps, now the bridging of the single amp is my concern, i ordered dual 1 of the BLs, would this diagram work? the subs are 1 ohm correct? so would this diagram still be somewhat valid? and if this does work, how would i design the box, because currently im planning to separate the chambers, unless one of you can direct me in the right way or i can jsut get the 2 smaller amps

I have always done sealed boxes before and I ordered a 10 inch dual 2 ohm bl and am struggling with the port dimensions. Different programs I use come up with different numbers. The recommended dimensions are 1.2 cuft with 15 inches of port. I am assuming thats 15 square inches. I have the room for width of 16 inches wide by 13 inches tall and 19 inches deep outside dimensions. Which according to my calculations using 3/4 inch wood is 1.97 cuft. But I only need 1.2 cuft. The 13 inches is the most important measurement. I don't want to go higher or lower than that. The depth of 19 inches is what I want to shrink the most and I only want to go 15 inches wide at the n…

Well here it goes, I am planning on running 2 18" Q series Fi's in my daily driver(2000 GMC Safari). I need box design ideas for this aplication, I want it to be more aimed at sq then db. I am running a Alpine pdx 1000.1 to each 18 at 4ohms at 1000watts rms. The room I have available for the build in the back measures 50 inches wide by 34 inches deep by 21 inches tall. plan on useing 3/4 mdf for box. Pritty much need to know everything what hrz to tune it at, How many ports, what size ports, slot ported or round. Let me know what you think any ideas would be a great help. Also when are the Q's going to be available to order.

I am going to get a 15" Bl and i am going to power it with a sundown 1500 and i was wondering what i should get it with besides for daily.

Well right now im running one 15 Fi Q in the trunk of my civic. The box is around 3.2 after displacement and tunned around 33. I got it ran off a memphis 1000D. It sounds pretty good but i was thinking about doubling my power and getting another 15 Q. Problem is i barely have enough room for one in my trunk. My civic is not my daily driver and i was possibly thinking about walling it and running 2 15Q's off of 2000rms. I was just wondering everyones opinions on this? Would it be worth walling with that power and how do u think it would sound in a good built box. Any help or sugestions would be appreciated, figured i would get some opinions before deciding on this, thanks

hey, im ordering 2 BLs, i kinda have a design for a box, but need some help since this will be my first attempt at making one here is my plan i got a question on the length to the second port, i used the re enclosure so it game the the first, but does the second port wood need to be directly or close to the center of the subwoofer? and to separate the 2 woofers, do i need 2 pieces of wood or jsut 1? thanx

Hey, I sent you guys a konaki motor about a month ago with an invoice of what I wanted. Just wondering what the statis of it ? The name is Jason Leonard if that helps. I left the invoice in a pouch outside of the box will my contact info, email address, payment options and what I wanted. If you could just reply to this on the statis of the motor/woofer. Here is the tracking number --> 1ZE4E0710335401132 Thanks -Jason

I sent my sub off about a week ago to yall to have it reconed i was just checking the were abouts on it. . . i sent it to the address on the fi website. . . just tell me if yall have received it yet.? Thanks, Charles

I looked at FI's website and also at the sticky on this site, but still can not find the answer. If you can use a sealed enclosure, can anyone tell me the recommended internal volume? Thanks!!! ryan

yes, i searched. my sincere apologies if someone has asked this before. i am planning on buying a single 12" D2 SSD or Q... which one is yet to be decided the amp is a hifonics 1206d, an alleged 1200w rms but closer to 900-1k probably. stock electrical + big three already built the box, ported 2.25cubes@34hz so.... i want to make sure the sub sounds good, i know both of them will get plenty loud for my tastes, but my main question is, if i get the copper coils does that reduce the rms rating of the sub? do the CC's really make taht big of an SQ difference? the reason i'm asking, is becasue the FW coils improve the power handling at the expense of some SQ, so i didnt kn…

Hello, first of all please excuse my english, I am from Romania. I just received a fi Q 15 ( no options ) and I am trying to calculate my speaker enclosure. I want to go for sealed enclosure because I don't have much space in the trunk ( BMM e46 sedan ). Recommendations for fi q box is 2-2.6 cu ft. With my calculations I am about 2.5 but I want to be sure I calculate it right before I give the blueprints to the box builder This is my result, I am happy because it fits inside the trunk perfectly. I made a dummy box to see how it will fit inside the car. Wood is 1 inch thick.

i sent my woofer in for a recone and spoke with nick via email briefly, but havent heard a response in a while. i need to get the sub back asap, im not sure how much to pay them for it with shipping to 85259. if anyone can contact them via phone, that would be fantastic as i would love to have the sub back by thursday or friday for a road trip. i know its 75 plus shipping, but im not sure how much the shipping is and if it can be back to me by then. he said it can be done within a day if need be. Thanks, anthony iocca he can reach me at 480-648-6785. my email is down right now.

im running 2 fully loaded 15" btl's D2 of of 2 ia 20.1's. each amp is seeing a 1 ohm load and it doesnt seem as loud as it should be or as loud as what i was expecting. my box is 9 cubes after displacement, and is tuned to right about 34 hz. im wondering if my port area is to large, im running right now with 157.5 in^2 of port area and used 12 in^2 per cubic foot when designing it. box is 12.73 cubes before displacement. this is in an extended cab 06 silverado and it pounds the lows dont get me wrong, but i expected it to be louder then what it is. i can always make a port plug but have never done one and am wondering if i do need one, what would would you recommend me to…

Ok well i built a box for an 18" Fi BL the specs are 42" wide, 22" high, and 22" deep. The port is 5 inches wide and 15.5 inches long. tuning it in the upper 31hz range. The box was like 8.3 cu ft. before woofer displacement. is that too big for a 18" BL with flatwind coil? Because the box doesn't sound good at all. and the woofer gets pretty warm on zx1000.1. I feel like its too big but i could be wrong.

Just currious if the new 12" BTL would be better suited in 2.5 or 3 cubic feet? Would tuning at 32 work or would I be better off tuning higher? Any info would be appreciated

Hey, Im getting my sub on monday and I would like to start my build as soon as it comes in and i need to get some enclosure designs for it. I'm looking for at about 2cu. ft. with an L port tuned to 33 hertz width i can go as wide as i need so thats not a problem and length also but i cant go past 18 inches in depth. can somebody help me come up with something

I have a 2001 PT Cruiser with a alpine 9887 hu: I used to have to pussy type s subs in the hatch and just didnt cut it at all. Saw the FI Q and fell in love.. So here is my questions if a get the Q 15 with BP and a Bxi1206D amp and then a PDX100.4 what do i need to do to so i have adequete electric power to have it all run???and if yall have any product suggestions please feel free...but i am only 17 and just graduated high school so i aint the richest kid around.

Hello everyone well I just orded 4 Q15s dual 1 ohm and bp power the box im building will have 2 seperate chambers, with 2 subs per chamber, with about 5 cuft per chamber,is that enough space?this is a sealed box. Also i will be using 3/4 inch MDF board to build the box, I will be putting double layers on the baffles, should I double layer all the other sides of the box or should I just brace inside to the single layers? thank you .................Brian

I have 2 loaded btl 12s that Im going to be running a T4k on. I want to use aero ports but the only way that I can get enough port area is to go a bigger than the recommended 2.5ft3. I may have to go with something like 2.7-2.9ft3.....is this ok for daily usage? Or will it hurt the woofer? I see on the Fi site that u shouldnt go any higher than 3ft3. Id be below that but they say 2.5ft3 on this site?

I recently totaled my car, so I'm selling the system to my cousin. He has an Explorer and where they're from, loud is the only thing that matters. Anyway, he's been entering in comps with two JL 12w6 on a old punch 500(or somethin like that, not sure the model). I have two FI Q 12 with Bp power I'm selling him, along with a Rockford Fosgate T20001BD. Size is not really a problem...he has the entire back of the explorer to fill if necessary. I'm just looking for a big box or whatever will get the job done to throw up big numbers and still sound decent. He said he put up like a 141 Outlaw with the JL's. If that's right, gotta put that to shame to show everybody whats …

Configure Speaker: Ohm: dual 1 dual 2 P Chamfer: no yes +$10 Cooling: no yes +$40 HiXmCoil: no yes +$20 Daily or SPL: Daily SPL Induct Heat Ring: no yes +$25 Universal: no yes I can't seem to find what these options mean and/or how eeach affects the end product and I would like to order a couple of the Fi 18" BLTs. I will be playing them daily. Does anyone know where these options are explained so that I can decide what to choose and why?

Well i asked quite awhile back what i should tune to if i wanted a loud daily listener, and most people stated 33-35 hz. It turns out that the box i've made is 34.97xx, so i just want the final word from people before i seal up the box and have to live with it. I mainly listen to rock and rap, and want it to be loud, but won't be visiting a TL anytime soon. Edit: Sub: 18" Bl. Box: 6.3 cu ft, tuned to 34.97xx. amp: would love sundown, but may have to settle for a bxi2006d (which would be alright for me, just would prefer the sundown)

i want to get a 15" BTL and put it in a 1999 dodge stratus. i cant decide if i want a ported box with the BTL firing at a 45 degree angle towards the trunk and have the port firing towards the seats (i currently leave my back seat down, it is MUCH louder). OR go with a sealed box with the BTL firing towards the seats with my back seat down. i was thinking a Hifonics Brutus 2406 for it, which is 2,400 watts RMS at 1 ohm. i would get it fully loaded. PLEASE MAKE ALL THE RECOMMENDATIONS YOU WISH! another thing is the new BTL's, there is no triple stack magnet!?!?!?!?!?!? it is just a single magnet, why would they to that???

What is the Induct Heat Ring and what is its pros/cons?

i know this is a real noob question but what is the cutout diameter of a btl 18"?