Fi Technical

What are some optimal dimensions for a box for a Fi BL 15. I really want "SQL". Need to know how many drivers port area port length tuning frequency. (W x H x D) Thanks for the help.

I got a 93 740il, i want to mount the subs on the rear deck and do a blow threw... dimensions of the trunk are - width 3', height 1.5', and there is a difference of 6.5" from top depth to bottom depth being the top is less, the port thru the rear seat can be a max height of 1.5' and is set at 1.1' without cutting any leather seat and width of 10", i have allot of room to play with the depth in the trunk well over 3' in the least deep spot, i tried using re's box calculator but it didn't help that much. thanks.

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

My enclosure specs are 36 wide 18 tall and 30 deep. According to the12volt.com this should be a lil over 9ft³. I want a 33 Hz tuned port I'm still undicided between 4 by 16.5inch port with a 11 inch length or 5 by 16.5 inch with 14 inch length. I'm more in question about the lengths. Are they accurate?

Does Fi offer a recone kit that would fit on a MA Audio 1800XL? If not, who would? The recone kit would have to include a new basket.

I haven't purchased the Q yet but here is the box. Will the bracing get in the way or will I be good? I'll get measurements tomorrow of how far from the hole the bracing is and how many inches in between the two peices if that would help. Appreciate it!

I was just wondering if anyone has some box specs for a single 15" BTL for a 2002 Nissan Sentra XE? Any help would be great. Thank you.

hey all, i am looking to build a 4th order wall setup in my 88 suburban with 4 BTL UFO pie slug 18s, they will have xmax coils and rig is dedicated SPL/demo. i would really love to find out what sealed size i need to base my wall off. since i want the bandwidth i am thinking 2:1 ratio. i have a calculated 100cf3 to work with so space is a plenty.. (50.25w x38t x91l) subs will be inverted (motor showing) all on the back wall, loading wall port will be drivers side. untill i find a sealed cf size per sub i really cant do a thing... ready to start buying lumber and resin

Hey guys new to this forum and just looking for some info. I have a BL 15 on a SQ2200 sealed off in my car. The res fq of my car is 37hz and im looking to increase my spl #'s. What is the recommend port area and port area per foot? I was thinking about using 3 4" PVC ports. Does anybody recommend something else?

I'm looking at buying 2 15" Q's with the bp option and just using it for daily driving no competitions. I wasn't sure if it is worth paying more money for the SAZ-3000D or if the AQ2200D is just as good of a fit for my application. I have been through a lot of bad amps and want to go with a good quality and very reliable amp that I won't be afraid it will break after a year of use. I don't know if anyone has or heard a setup like this with either amp but any input would be greatly appreciated.

I need some help with the dimensions of my slot port before I go ahead and make a disaster. I have a 15" SSD in a 3.8 cuft box. I'd like to tune it to 33Hz as per Fi's recommendation Using one of those online calculators I got the following dimensions 3"H x 6"W x 5.22 L Does that look right? How would that be affected if I wanted to make 2 ports? Any help would be appreciated

So... I was on my way home listening to my Q and it suddenly stopped working. I parked and left it on and felt the sub while it was playing. When I pushed in just a tad, I felt it move a little. But when I let off...nothing. I took the sub out and found that the black plastic piece that holds the push terminals in came un glued. Im assuming that's the problem... I tried to get a reading with my DMM, but I think its a piece of junk. It just read 1. My gain is at about half. Amp is a planet audio rxd1000d which im selling soon. 2.5ft^3 box at 32hz. Don't think all that matters though considering I just need to know how to fix it right? Anyways...thanks in advance. Jonathan.…

Ok so i have had my Fi BTL for a cppl months now and i was bumping it today and the Dustcap flew off. Does my warranty cover repairs on that? if so how do i go about getting it fixed?

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

Hi i have a btl 15 im wondering on what amp to use my friend says a soundstream tarantula amp i was thinking a hifonics HFi amp. Im looking for most power and clear sounding bass from the amp

FI please remember to add the shipping address to your shipping labels! not just the city and state grrrr... Was looking forward to my Q, guess I get to wait a bit longer until UPS figures out my address. Hopefully you guys are not out on Vacation... I need to vent

Hey guys, Finally ordered my Q, 15" w Cooling+Spider... so pumped! but now I have a dilemma I have ported box that is built to the specs of 3ft. cubed @33hz, but wanted to know if I will hear any audible difference by going to a 3.5cube @33hz? Is it worth it for the Q? Goals are just to have the loudest setup given my amp (1500d sundown), sub, and trunk space Just wanna know what, if anything, i would be missing out by keeping the box at 3 cubes thanks

ok, well i have truely made up my mind and will be going with the Fi Q 12". my question is, will this box be good for the sub i.e. enough room for the sub to "breathe"? Box specs: Depth: 11 Width: 30 Height: 16 CuFT: 2.27

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 need help finding some screws that wont brake when the bass hits from my btl im getting tiered of putting new ones in what are some good screws thatll keep these beast down

I am running a fullyloaded bl15 off a planet audio bb2400 making about 1600rms. Electrical- big three, 1/0 throughout, second battery in rear, voltage stays around 14.3, drops to 13.6 for tones. My first enclosure was 5ft^3 tuned 36, 60 sq" port, with bracing, angle boards and routered port edges. Sub faces drivers seat while port fires up behind passenger seat. I hit a 143.8 meca style. Built a new box 3.5 ft^3 tuned 45 with all the bracing, angle boards and routered port edges and dropped to 141.7. I wanted to find out what box changes I may make to increase score, and if I was crazy trying to reach a 150 with a bl?

I placed an order for 1 FI BL 15 dual 1 instead or 2 am i ok

Brand new fi ssd wired to 4 ohm on a apsm 1500 mini for break in all set with smd dd-1 had hooked up for 1 day and it broke neck joint smoked coil former has hole and just overall dunno why it would have happened that way with low power, song played was off decaf zip 31 track was first in list, running in a 03 2500 ram diesel has 145amp alt dual big batteries under hood running 4ga power n ground into amp and 8ga raptor wire to sub. Ne ideas? Edit : spiders broke from former along with falling apart also.

Would be grateful for any help. I just got my 18 btl in the mail and would like to start to build a box. I have built alot of sealed boxes but haven't built a ported box. I drive a 98 tahoe so size is not a problem. It will be used in a daily setup would like to tune that way but get loud thanks for any help

Hello guys I am looking for stories or possibly someone with some experienced advice that may have used q 18's in a 2003 explorer . first of all I have a 2003 explorer with a 4.6 v8 ,220 amp alternator 2 runs of 1/0 kicker power wire, 4 stinger spv44 batteries. cda9887 alpine receiver ('audio control matrix' voltage booster in the near future) to a jl slash 300/4 powering focal 165v2s's front and rear , a audioque 2200d to power 2 fi q 18's w/bp power dual 1's , a audioque 1200d powering a digital designs 9515, as well as a digital designs 1510t will be ran in the center console , I don't have the amplifier for that yet and yes there will much more than likely be m…