Fi Technical

which is better 2 or 4-ohm for a SINGLE BTL on a kicker 2500.1

The box I'm building is for a single Fully loaded BTL 15. The design i came up with has the following specs: 4.5 cubes after displacement and bracing, tuned at 32hz with 64sq/in of port. My goal is just a loud ass daily ground pounder. My question is just does this box seem too big/small, and is 64sq/in too much port? thanks

Hey all, bought a 15" Q last night to mess around with and have some questions. Recommended enclosure is 2.8 to 4 cubes and tuning anywhere from 28 to 33. I need to figure out where in that range I should build. I listen to mostly metal, rock, blues/folk and on the rare occasion I'll crank some old school hip hop. I know kick drum is front stage and I will get flamed for this but I still like cutting my subs at 80 to get some impact for kicks out of them. I have a Kicker sx1250.1 that will be going on the Q so it will be just a bit over the rated limit of the woofer. It will be going in the back of my 07 extended cab F150. I toyed with the idea of going sealed but I …

currently running a sundown saz1500 powering a fully loaded 12in fi bl in a 2.5 cu ft box tuned to 34 hz. I was recently at a local audio shop and had the main guy set my gains properly so i did no have any clipping. I was not very impressed with the outcome. As i come to find i had been running with clipping since day one and my system is now quieter. He told me to tune my box to 40-42hz and it would be louder. My question is how much louder? and will i still be able to play most rap music? What would be the lowest tone i could safely play?

Curious specificaly on the ''Q'' 18 w/bp

I am loving those FI x specs, and it has a strong BL as well I wonder why these didn't sell as good as the others.. It almost seems like its a good as a subwoofer as a ssd but cheaper. Im no expert but looking at teh specs it has a stonger bl. more efficient, lower fs Did we miss out on one hell of a woofer? or I know I did. IT has a nice xmax as well.

A different account huh? I see your location has changed to "US", and so has your IP address as well...interesting. because h disable my account so cannot post thread that why i sign up new account old account cannot post thread and reply too they disable Yes they disabled your other account because you are being very childish and suspicious, he already told you he is not going to build you a box so try somebody else or try asking someone that lives in your area i told him just do shipping US my friend live at US lah but he wond help build box for me i have money i can pay so no problem but he said wont help what i wrong

i'm powering 2 Fi Bl 12's. i would run one amp per sub. these amps run 1550 RMS at 2 Ohms. does Clarion make good amps? would you recommend these? budget is also a key factor. and i can get these amps incredibly cheap. i'd run Rockford if i could. but i cant afford it.

If anyone could draw me up some designs for 1 15" bl send me a MSG and I'll give u measurements of my trunk. Website says 3-5 cubic foot.. So shuld I go 3 4 or 5? Wuld it fck with the sub if I went bigger or smaller then reccomended? I was lookin at sme pro boxes and this one is 3.87 Cft. Any1 reccomend pro boxes or would I be better off gettin one made?

I ordered 1 18" Fi SSD. I plan on getting another one soon. And was wondering what kind of amp I should get? I went ahead an got the dual 2 ohm voice coils on the amp. I'm looking for something cheap. Possibly well under $200? Currently I have a MA audio 18" 1100 watt amp with a legacy audio 2000 watt amp and it hits hard but it doesn't have near the quality I'm looking for. With the new SSD I'm looking to run either a 1ohm or 2 ohm config. Not sure yet what to do. Any ideas? I'm also wanting to run the SSD at atleast 650wrms 800 would be perfect.

Got a 12" Fi BL that needs reconed but was curious if I can recone with a totally different brand ie. Incriminator, Ascendant, Sundown, DD, etc

I have a 12 " bl and I am about to begin building a new box for it. I want to use the same cut outs posted on here but I want to make the box with the sub facing up and the port facing the back door on my jeep. Does anyone know how to modify the cut out given to make it this way or do I need to make a whole new design?

Hello, I'm new to the forum and would like to say to the Fi section I've done a lot reading here and searching but never really found the answer I'm looking for. I already have a Kicker sx900.2 and looking to get a single 12" SSD. From the research I found so far I've came to the conclusion that getting a SSD 12" with the copper coil option would be my best bet for the kicker? The amp would run bridged, 850 watts @ 4 ohms so would the kicker be a good match for the ssd? If not any help would be appreciated. Just trying to get some feedback before I make my purchase. This will be my first time buying a Fi sub or even listening to one for that matter. I can't wait! thanks…

a single 15" MT in a 3.25 cu ft enclosure with 130 sq in port area and very well rounded interior of enclosure or two 15" MT's with only 50sq in port area in aprox 4 - 4.5 su ft of box volume assuming same amount of power is used peak frequency is 49 Hz if that really matters

Got 2-12" BTLs the old versions. Im trying to make up my mind on what to power them with between a AT-5000.1D or the AT-7000.1D. Its only going to be a daily blowthrough in a '97 Thunderbird. Which do u think I aught to go with? If I went with the 5K Id be saving needed space due to less batteries. If I went with the 7K its a $400 difference in price and Id have to get an extra rear battery on top of the ones I already plan to run.

for those do-it-yourself boxes, where do you get your wiring terminals and carpet? links are helpful, thanks in advance!

Alright before i buy a 10" Bl with cooling i need to make sure i know the mounting depth... the website says 6.25" but i heard you have to leave an extra .5" for the pole vent... in this case it would be 6.75" mounting depth. is this correct?

I am going to build (or have built) a 1.88 cu.ft. enclosure tuned to 32hz for a 12" Fi BL. I want to put a round port in the box or multiple round ports or even a triangle port. Can anyone tell me the dimensions of the port? I know there are tons of calculators out there but i don't know how to take in account port noise and all that fun stuff. I don't know whether to put one port or multiple or anything. Thanks in advance!

Does the cooling option effect the performance of the sub? like does it make the sub quieter or anything? i read the flatwound coil makes a sub prone to peak so what does the cooling option do?

ok, just installed my new 15qd2 with bp today. 4.8 cuft ported at 28 hz...rockford p1000-1bd. yes thing slams louder then i could have imagined. only one problem. i think i will be able to get rid of most of the trunk rattle, but it's the sunroof then driving me nuts. i need to get an sd card reader to load some pics and vids from my phone... every time i start playing some really low notes, the sunroof starts banging so bad that's about all i hear inside. anyone have this issue or know how to fix it? any ideas would be great! oh yes it's a 99' infiniti i30.

Are you guys able to recone a 10" TC OEM woofer. The surround had ripped completely from the center cone and i just want to have it fixed.

Hi, i wanted to know which of these two amps would be better for a bl 18... SAZ-1500d or an SAE-1000D

Anyone have any experience with FI Q 4th order bandpass boxes? I'm thinking about doing one for two FI q 12's. I've heard they really help to eliminate trunk rattles when you port them through the deck. I have 2200 RMS to work with.

Hey guys im wondering what a P chamfer is on the fi q. thanks for the response!

Hi everyone, I had an amp putting out 2100 watts at 1 ohm on my SP4 18" (Stereo is currently out of the car for the Canadian winter) and I had a couple questions. This is my first build with a large woofer. I set the gain on the amp using my oscilloscope when I had hooked everything up, and I think it might just be my inexperience with this amount of bass, and I don't really know what I should be listening for. The excursion of the woofer is really high and I think I just have no reference point on what should be happening (coming from two 10" woofers on my first build). I don't think it is possible to over power the woofer with this amplifier, and I'm not getting a disto…