Fi Technical

Hey I'm going to buy 2, 12" BL's and I was wondering what amp you guys would recommend to get the most out of these subs...

Hey guys Im going to build a new box for my 18" Q. I have 6.7cu. ft. before disp. and port.. which I know is small, which is why I need to use aero's. Right now I have 4x 4"x10" aero ports. can someone give me recommendations. Do I need to get 6" ports?? I know for port area that 2 of these 4" aero's isnt enough, but I think if I go to 3, mine are to short... Can I use the flares, and use PVC pipe to make them longer??

Hey guys, i need another recone for my MT. Im looking for dual 1.4, optimized for use with 2 powerbass xa3000d's. I want stiff but not super stiff, i was thinking quad spider, 2 stiff, 2 med stacked alternatly, with heavy duty tinsel. If you guys have another idea im open to it. Lemme know please need it asap. BTW itll be shipped to ontario canada.

***FIRST*** I have a 15" fully loaded btl. the box its in is pretty big its 5 cubes. it has dual ports with sub and ports firing forward. i think the ports together is 80 sq inshes of port. the speaker is centered in the box with the ports on the ends of each side. just curious but would a box of the same size with a single port with sub in center or on the end with both firing forward be louder or the same. my video is posted on you tube and people are telling me it would be louder with a single port then dual. ***SECOND*** i am running mt btl with stock electrical alt, battery , and chitty 4 guage wire. no big 3. i have a ssl soundstorm 4000.1 mono amp. i have heard th…

anyone help......please....dimensions are 60x22x21.feel free to make suggestions.

i have been working on my box design this would work real good with my trunk space. http://www.soundsolutionsaudio.com/home/bo...ideboxcalc.html is the box good to build or is there way too much port, fi recommends 12-16 per cubic foot of enclosure area? crap it only posts the default box... my box is the following: box width 35, box height 17, box top depth 19, box bottom depth 19, box thickness .75, square port width 4, square port length 2-16

what kind of grills are needed for the fi q 15 ? something strong to protect the sub. i have a suv and 2 kids, i don't want to worry about things getting thrown in back. most of the grills i have found don't have enough clearance for the full throw of the cone. looks are not an issue. if i can't find something soon i'm going to start welding my own.

Finished the recone on a fully loaded BTL 15 today and this thing sounds even better than what I wouldve ever guess... I have one question though... I brought the sub to a friend who owns a shop to get the recone and after playin it a bit... Pulled up to a friends house and noticed the dust cap fell off, so I bought some more epoxy 5 min loctite and put it back on no problems. After expecting my little glue job the dust is maybe 1/16 of a inch off from where it used to be. Will this hinder the subs performance at all? Its sounds fine to me, still loud as chit...(My wife said it sounds like a machine guns going off in the trunk.LOL) this is only a temp system... Next syste…

I was just wondering if it was possible to replace the push terminals on the BTL with the terminals you need a hex key to open and close, could someone also tell me what gauge wire will fit in the push terminals. I don't have it yet, I'm just asking if its possible.

Well I just recently bought a Q and since I was eager to listen to it, I put it inside the only box I had. The current box is a sealed box with about .9 ft^3 after displacement. Since its on the smaller side I threw some polyfill in the box as well. Now I want to build a ported box and I honestly have no clue as to where begin. I read through several pages, and found some plans but they don't suit my needs. I also searched online for calculators and only came across the RE calculator. I don't know how accurate it is but it kind of gave me an idea how port length affects tuning frequency. I'm a little tight on space and have a maximum of 30"w x 16"h x 16"d. Matter…

Im wondering if anyone has some suggestions .. i know in the thread it mentions (after all displacements for those wondering). (I personally think that 1.2-1.3 cubic feet is optimal imo) but thats after displacements and i have no idea of the subs guts size. i am awaiting delivery of my sub so wanted to have the box ready. Thanks in advance

I want another t-line in my truck. I had a dd 9515g, it didn't hold up. I will have 3kw on hand. What options on the 08 model BTL would get where i want to be with suspension, cooling, and power handling, as well as x max........If a combination of stiff spiders was needed then that would be ok as well. I just don't really know how well they will handle this type of application. It a 2006 nissan frontier(the big ones) xtra cab so i have a decent amount of room as my backseats are removed. advice will be appreciated. Jason

i'm building two enclosures one sealed and one vented 3/4" mdf my dims are 17-18" high {could go either way a little bit more} 41" wide{also have room over the wheel wells if needed} depth as needed running off an saz 1500d i am looking for the best all around sound this will see all kinds of music at differing levels [daily driver, wife two kids} i'm not looking for every last .01 db but every once and awhile it will have to take a pounding would anyone be able to help me come up with a design for the ported ? any thoghts on the sealed, with those dims it will end up not very deep. is that a problem sound wise, with it being so slim and wide or should i make it more c…

Ok, since i've got the new amplifier, I was looking into the bl's a little and keep seeing all these posts about them missing out on the low end, (ie sub 35 hz). Is this true? My enclosure is tuned to 27hz at 8.18 cu ft and the Q's perform awesome in it. I want to go with the BL's because they will handle a little more power than the Q's because I'll be running a IA 40.1. How do you guys think they will perform in that enclosure tuned to those specs? If they won't handle the bottom end like the Q's, I am also looking at the AA Havocs, and I've read that they handle the low bass frequencies pretty well like he q's. Feel free to chime in with any responces. thanks

Is it safe to run a single fully loaded 18'' BL on a Rockford T2000 @ 1ohm?

I am on the verge building an 8 cube sealed box for a Fi Q18 which I will be buying in the next 2 weeks. I was set on everything until I came across one question. Do I need to have a 1 inch baffle? I plan on double baffle flush mounting. I was going to build is all from 3/4" MDF with a lot of internal bracing. No polyfill since I am maxing out the dimensions. My dimensions are: W:40" D:21" H:21" (will fit nicely in the spot of the room i picked ) Besides the baffle question, does anyone see any problems with my plans?

Could someone guide me on what size enclosure would be correct for the four of these big bad subs.They are 18 inch btl fully loaded. The customer would like a wall. The ruff dimensions are 35 inches tall, 45 inches wide, and @26 inches deep. Any help with the vent width,hieght,and length would be great.

desperately need to know how much each woofer will receive @ a final load of 1 ohm..thanks all!im searchin through amps so just another option after u guys judge it.

i have four btl 18s. is it safe to try to drill the terminals to make them just a little bit wider? i cant fit a full piece of 8 gauge into one terminal, i have to trim it just a little bit. and trying to fit two 8 gauge wires into one terminal i might as well just use 12 or 14 gauge because i have to trim the 8 gauge down so much its ridiculous. how bout taking either a unibit/varibit/stepbit (call it what u want), or a slightly bigger drill bit and try to make them bigger? extremely bad idea and i'm gonna end up needing to replace something because i'll break something? or be very careful and go slow and it will work? 2000 rms u would think u could fit a big ass wire …

i have the base model q18 and a 1kw amp that has been tested to put out 1200wrms. i have my q in a large box behind my seat in my truck and i can smell the coil a little if i blast it for a couple mins. the amp was set correctly with a dmm so i know its not clipping. so i was wondering if there was anything i could do to improve the cooling so it doesnt get so hot. could i add the bp optioned vent plug to the pole or would i need to sent it in to get work done to it. i dont want to void any warranty so if you could help fi guys that would be cool.

Well i'm not sure if this is the right place to post this, but i'm wondering what options would be enough to get a 15" BTL at around 2600rms with ease? Thanks

i am about to buy the aq2200d amp, and i am still wondering what subs i should get... 2 18in. bl's or 2 18in. q's. i know the q is for sq mainly and the bl is more for spl. i want what ever one will perform better on that amp. thanks

Well I looked around to see if I could find the new specs of the 08' BTL. I couldn't find it, so if anybody could help me then that would be great. Thanks

hi there i need some help with a box design. i plan on sealling off the trunk in my civic. i have a fully loaded btl. the box in it pounds now on highs. its a dual ported box not sure if its effecting more or less out put of the sub or not just wondering if a single ported box will be different its tuned at 35hz. i have a little over 5 cubes. i am looking for a single ported design with both the sub and the port firing forward. i plan on also doing competitions with this setup. i just got a new alternator coming and 1/0 guage wire. i am going to get a kinetics 16 volt battery or two depending on if i need it. but what box design would you recommend for spl and bass race.l…

the topic asks it all.