Fi Technical

Yes i read the sticky at the top of the page, but i just wanted to see what people thought. I haven't bought anything yet, but what about a hifonics bxi2006d (yeah i know its not sundown or anything), at 1ohm (1800-1900 watts im guessing?), on a bl 18 with p chamfer and flatwind? would that be enough to handle 1800 rms? I know i could turn the amp down, but i wanted some input.

Quick question...I've had my heart set on the 12" Q (after much reading on this and the BL) with my main intentions towards sound quality. Im putting this in my trunk of a jetta and my question is.....is the sound quality going to really be that prevalent through the back seats? Maybe i shouldve gone BL? thanks in advance

I see pictures of raw boxes with Fi 15s and up in them and they all have double thick (looks like) 3/4 inch mdf. So is this really necessary? And if it is, what about the sides, do they need to be doubled to? Also whats the best type of bracing to use?

hey all my brother is about to buy a 15 Bl(d2, cooling) and hopeing to run it off a b120d(brutus) in an enclosure witch is about 3.4-3.7 cubes...idk about how much port tho.. i do have a couple of questions tho.. is the Bl ok to run at 1200, i know the rms is at 1k and i think it can take the extra 200 watts but i want to make sure that it can, can it? is 3.4-3.7 cube well enough to run the bl at, and if so how much port would i be looking at? ok with ported boxes is it better to have the sub more towards the begining of the port or further away from the port begining? thanks, steveyblack

I already have 1 BL 12 with a sundown 1500d on it now, i was going to sale it and just get some 18s or whatever. Now if I go ahead and just get another BL 12 with same options I have now which are D2, cooling, and flatwind, and run them to a pair of strapped 1500d's they should be fine with that power? I figured they would be ok, since already have 1500 watts on 1. thanks.

just wanting to know if you guys can or know if another company can. thanks!

I was just wondering if anyone knew of any good car audio shops in Ohio (Columbus would be best) that have worked with Fi audio before and could do a custom wall for 2 12" BTLs and probably 2 TD20001 r/f amps. I like competing in meca's car shows (SPL) and i don't think i should do the box like originally was going to. Thanks

So since my order still hasn't shipped after 10 business days, I might as well make sure my box dimensions are correct. Going with a 3.5 cube ft box tuned ~32 Hz Port is 17" by 3" and 37 inches long Anyone see anything wrong with this? Thanks.

Does anyone have the TS parameters for the Black Fi-Day X, specifically the 10"?

Anyone have a cut sheet, layout, anything? Daily driver/demo. Musical setup.

Okay so im going with a 12" Q with the BP option and an audioque 1200D amp. I want to port this sub around 33Hz. How big of a box should i make? I know Fi recommends anywhere from 1.8-2.5 cubic feet but what would be the best? Would it be better to go bigger than 2.5 cubic feet or should i just stay around that number? Thanks

hello, well i decided to put my (4) Q 15in. subwoofers in the bed of my chevy s-10, standard cab, it will be a blow through, has anyone done this? where can i get some information on how to do this? where i can find the boot to put between the cab and box? well thanks for your help, Brian

My old box designed by chris fishercustoms, for daily pounder. Its 49"w x 26"h x 32.25" d with port facin back 9"w x 23.75"h tuned to 33hz. Everybody that sees it says it is way to big and should only b around 14 to 16 cubes. But fi recommends 8 to 10 cubes each. Anyway it sounded good on everything, but I took it out and tried a 4th order bandpass which was good also. Now I want want my backseat back and thought bout tryin some aero's. Any suggestions on the new box, aero's or stay with slot? Thanks

Im going to get 2 12" SSD's if i want to wire them to a 1 ohm load should i get the dual 1 or dual 2 ohm. subs.

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 have a custom box already built that i have a 15 in at 3.5 cubic feet. I was wondering how a 12 inch btl would respond to 2k watts in that overly large box? P.S. its tuned to 32 hz

i am planning to go with the following sealed box for a Fi Q 15".. would there be any issues with the sub being mounted so close to the edges? theres only 0.1875in. of clearance on the top and bottom of the sub/edge

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

Im getting a fi btl n3 18 and haven't been able to find any dimensions to build a box. Can someone please give me dimensions to build a box and I want to tune the box to 32hz and pictures would be great too

I have two fi q 15 w/bp power that I need to ship in for recones. could you please send me the info that I need to go about doing this? do I pay before or after they have been fixed? thanks

i know you guys are buisy and all but i have been trying to get information on gettin my 18'' BL either warranty or a recone because one of the voice coils only works sometimes. but i have a competition coming up in a couple weeks and i really need this sub fixed in order to get the points i need to go to state finals.

Ik that the Fi BTL is 2000 RMS and 4000 watt peak butt ive been reading some topics and some ppl are saying that the 4000 watt amp will be to power full and could ruin the cone

My SSD15 is coming this Friday hooray! So, I'm starting to plan out my install and i was wondering which way i should face the box. I have an '09 Jeep Liberty (the newer longer boxier model). I'm not able to build a custom box or get a good one made at the moment, so i bought a box that should be within the reccomended size and tuning ranges. Things to consider: Box has port and sub on the same face. Sky slider roof - its like the ultimate sun roof without the whole roof coming off. It slides from the front to the back and bunches up accordian style, so if box is facing up it won't be facing a solid exactly. Box can fit any direction in trunk. Just lookin for some inpu…

Hi. I just purchased two 15" Fi BL's and im looking for a ported box that would meet the desired dimensions for the subs. Can anyone help me out and point me in the direction of a box i can buy. Thanks

I'm getting a Fi btl 15", could I please get some suggestions on a variety of amps i could use to push it . Thanks in advance