Fi Technical

I was wondering if anyone would have any insight on my possible set up plans with my enclosure and sub and amp. First off my vehicle is a 1995 3000gt. I want to go with a single sub because it will be easier and far cheaper to set up. So would a 15 fit or would only a 12 fit? I was thinking either one of those BLs with all the options on a decent 1000-1500 watt amp would probably be ideal? Also are the speaker wire kits on ebay that are 2 gauge ideal? They cost like $40-$70 on there. If anyone has any suggestions or recommendations, I would greatly appreciate it.

i know first thing everyone will say is why sealed, ive just been a sealed type of guy all my life, nothing against ported..but its not my taste..so i know on fi's site for 18's they suggest 4-8cu ft per sub..im having a shop make my box for me so its not like i can experiment with different sizes..so for a sealed application and for a mix of rap and rock what do you guys suggest in a box size for each 18? space isnt a issue its going in the back of a denali

ok so i got two fi btl n3 12s i went it had it metered on music did 149.3 on music on kick panel and 148.6 on windshield on music they said subs peaks in my box around 33 to 37 hertz which they said is good for low bass is that pretty loud score for that low of hertz? i also have a sunroof that leaks air and roof that shakes like crazy some people say it can hurt the dbs to dynamat or gain so what do u all think

hey guys, i ordered 3 Q 18'' subs which i intened to use in a ported application but for some reason not sure how the high QTS option was selected..and in the options it says this is for only sealed applications..so i sent a email thinking i would be ok since it says there is a 30 day wait time but i just got a email saying my subs have shipped so im not sure if they got my email in time and made the change or not, so my question is how bad will it sound if i still throw them in a ported box even though they say the option is only for sealed applications?

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.…

I noticed that on the first view of the cut sheet for the bl 15 that it says the width of the box is 33 3/4" but on the other two views it is 34" , is that some kind of mix up or am I missing something?

I wired up my BL 15 D2, eveything is wired correctly but the sub barly moves... im powing it with a 1700 watts amp... and i set it right... is the a wiring problem or my amp? or the sub? any opinions?

i was browsing caraudio.com and i saw a btl "UFO" for sale and it looks like it has a spacer between the basket and motor? mine does not have one of those, was that constructed for the himXcoil??? here is the link http://www.caraudio.com/forums/subwoofer-classifieds/510334-215in-fi-btls-1-15in-ia-dp.html alo here is another http://www.caraudio.com/forums/subwoofer-classifieds/510333-sale-15-fi-btl-excellent-condition.html

thanks everyone need a little help i have a new bl 15 loaded, enclosure 4 cb tuned to 32 hz, im trying to adjust my amp and head unit settings for this sub ive tried several things but i dont feel that its right... the amp is a hifonics bxi 2008d mono, and the head unit is a pioneer deh p7900... ok now ive played around with it a little and to get decent sound (bass) ive had to set this amp to gain level 3/4 up, and bass eq 3/4 up, subsonic a little over half way, and low pass a little over half way... and the head unit settings hpf 80hz, (sla) all way up, loud off, sub 1 normal, sub 2 to +6 and im guessing the band thats on this setting with this is the low pass at 100…

I wanted to know if the RE SX recones that fi have on the site will fit and work in the HC motor as well. I tried to get a hold of Nick at FI through several emails to find out but no reply , so after a couple of weeks I went ahead an ordered the RE SX 15 d2 as there was no recones for the HC on the site . any help would be appreciated Thanks in advance.

I opened my trunk this morning to find my Q15 had puked out a fairly hefty metal object and blew the dustcap off. I believe this happened listening to the sub well below tuning freq. (tuned to 30 hz. and playing "late Nite tip" by Three Six Mafia) What is this piece of metal and what purpose does it serve? You could stick your hand through the middle of the sub and this piece would have prevented that from happening. If this can be glued back in what do I use? CA glue? The sub still works but i want to fix it before playing it again. Thanks in advance for all of your help!

Im making a box myself but im having a little dilemma im my box construction... i have a 4.35 cube box... im plaing to make the port 2.75 inches wide.... im just stuck on the port length. iv been using diffrent websites and calculaters, but i they all say diffrent port lenghts... iv used 12volts.com, re calulater, torres subwoofers calculator... im thinking the trres calculater is good, but im just geting a second opinion... can somone help me out with this dilemma im having? the specs are 16 height, 35 wide, 17 depth, 2.75 port width, Length? 21-28 inches... wanting to tune it to 31hz.

How risky is it? I searched this forum and the web, and did not find this specific instance of question. I would be wiring it to 2 ohms (1200rms). Had I known bass would get this addictive, I would have got a BTL off the bat!!

Is there any way I can reattach this myself? This is basically what I opened my trunk to:

hi.. i was bought one fi 15'' btl before 1 week. today i unscrewed it to see how it is.. and i see the spider had a cleft.. can somebody tell me, it is serious and how can i fix it? thank you Uploaded with ImageShack.us

I have two Fi 12" old x series woofers the ones sold on the black fiday special. My question is, what is the recomended enclosure volume per speaker for a ported box? I have had them in a sealed 1 cubic foot per sub box since I bought them on black friday. Which has been ok for the time being, but I have moved to a hotter climate, and need a ported box to help cool the woofers as well as get the most spl out of the woofers.

Can somone toss me a few opinions on a sub box for a fully loaded Fi Bl 15. the max height of 16, with of 35, and depth of any. i used the 12volt.com port and box calculater. i typed in a 35 width,16 height, 16 depth. if came out to be around 4 cubes.with a port lenght of about 25, port with of 3inches i dont know if that right... i wanting to make a box for a tuneing of 30 or 32hz. i also used the RE calulater.. but it dont seem right... can some one help me out. toss in your opnion? i have a 1500 watt amp,i want listen to some bassy songs, mostly rap.

Recommended box size and tuning for a single fi btl 12 running off a crescendo 3kwp at 1 ohm for a 03 crown victoria.

how much max RMS watts can a 18" fully loaded BTL N2 handle ?? i was wondering if i can run a 2400 watt RMS hifonics amp to it ?? also will a 6 cubic feet box ported to 35 hz sound good ??

Hey everyone i am interested in buying a Fi BL 15 and i have a chevy s10 ext. cab. My approximate space is 48" length, 17" depth, and anywhere from 17" to 28" height I have a few questions and would be happy with any answers anyone can give me.... 1. I am thinking about building my own box at 4 cubic ft. tuned at 32 or 33 hz, but i do not know how to correctly port a box. anyone that could help talk me through that would be appreciated. 2. An option i was thinking was facing sub forward but i didnt know with 17" depth if i would have enough space between the box and the magnet. (Mounting depth for Fi BL 15 is 8.250") Also if i faced it forwards my depth area would shrink …

i would like to ask about the best enclouser firing direction for this truck? i have a 4 cb. box tuned to 32 hz. sub and port facing the same same way, but facing it forward it puts the port to close to the back of the seat and firing it up flexs the top unreal! can anyone help me with suggestions on a goob enclouser build for a silverado ext. cab truck with a loaded bl 15 on 1500 watts? music prefrence is rock and rap bass tones... thanks for all suggestions...also i would like for it to be loud and hit hard as possible and keep the enclouser size to around 4 cb. tuned to 32 hz. again thanks...

I was planing to make a box for my BL 15... but i have a few ideas.. whats the diffrents from the sub facing toward the rear of the vehical? Vs. The sub faced up ward toward the trunk lid? and what is a good tuneing for the sub? 35hz? 32hz? or 30hz? i have a 1500 rms amp... and i listen to rap and metal.. rap most of the time...

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?

hello guys, ive been a member for a while and have read tons of information on the Fi Bl and im ready to pull the trigger on one, but im stuck with one question. I've viewed the cut sheets that are located as a pinned topic, but i was wondering if i could make a slight modification. Since i will be building the box as a center console in my crew cab truck, i will be downfiring the sub and wanted to move the port to the side firing forward. The only reference i can think of on how i want the box to look is like the DD high efficiency box with the side port. Now my question is, am i correct to think that it will be fine and that all i need to make sure is that the port len…

so this sunday, at a local comp i heard rumor that a guy was using a BTL N3 for a daly setup. I ended up seeing his name on the record board and couldnt believe it was true. The guys setup was a 18" N3 box 5 cubes tuned to 35hz, and he metered a 150.7 outlaw in a SUV. i was most impressed. I had the thought that the n3 could NOT play music daily, untill i heard his tonight. It sounded very good. i messaged nick immediately and he got back to me within a couple hours "as usual" and notified me that they can play music, BUT that him and scott believe the motor force is too great and will actually decrease SPL. so in other words you guys, the n3 can be played daily, however …