Fi Technical

i know this will sound stupid but what is a dustcap? is it the cirlce on the center of the sub? the one with the fi sign?

what size of wires do ppl use for the 12" ssd?

building a normal box but using two layers of 3/4 mdf all around, which way would be the strongest? i know the first would be the easiest with less cutting, but would number 2 be so much stronger that i should definetly go with that method? Number 1 Number 2 any opinions are appreciated!

Im looking around locally for a place to build a box for 2 15's. Ive heard of a place called precision audio but I'm not too sure if they use quality material/planning/preparation/etc. All I know is they charge about 250-300 for a box. Does this sound reasonable to you? I know there are a whole bunch of variables but judging from your past purchases and stuff, let me know, thanks.

I am looking to run 4 12" BL subs in my SUV and was wondering what would be the best tuning and internal volume for an enclosure that size? Also would it be better with subs up and ports firing back? I will be running 2 Rockford Fosgate 2500-1bdcp amps on this set up.

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.

hey guys, I have a wedge box that goes behind my bench seat in my truck. its about 2.8ft3 before sub and port displacement. right now i have a 4in round port that is about 7-7.1in in length. so that puts me at about 35hz tunning wize. however i just upgraded my amp and bought a SSD. so i want to mkae sure for port is good. i will be re tunning to about 33hz so that will make my port longer. however should i upgrade to a 5in round? i dont know much about what would make a good port. i thought as long as it was tuned to the right hz it didnt matter. please offer any advise. i cant wait for the SSD to get in!

what is the recommended port area for ssd's? box will be around 5 cubes tuned to around 33hz. 1 port 5" wide 20.75" long would give me 75 square inches. and 4.5" wide 17.25" long is 67.5. is one better that the other? and y? also just curious how much does a 12" SSD weigh and a 12" Q?

How much power should i put on a BTL 18 if i plan on running it for fairly decent lengths of time, 15-30min, at high volume. Is 4.5kw too much for that kinda usage... It'll be in a rather tight ported box

ive been asking/emailing for over a week now just for a price on a 10" Q recone kit. and so far nick replied telling me to ask scott and nothing from him. i understand you are busy but cant take a few minutes out of the day to email me back or reply here?

I have a 95 single cab Nissan pickup and want to put 1 10" SSD back there. I have buckets seats with about 10 1/2 - 11" of room between them don't have exact demensions and limited room behind the seats. If I have enough room I want a ported box but will use a sealed box due to the limited space. I also want to have a center console.

Looking to build new system. Planing on using a Memphis 2500 watt amp to each sub. This system will be mostly for SPL but also some daily listening. Will be using 10" or 12" subs. Just wondering which Fi sub would work best. Will start with 2 subs but move to 3 at a later time and maybe a Memphis Mojo 4kw to each also.

The recommended box volume for a sealed enclosure is 4-8 cubic feet. Is there much of a difference in sound quality from 4-8? What exactly would be the benefits and disadvantages of having the volume be 4 cubic feet to 8? What about 5 6 7? So far what I could gather is there would be less low-end with the smaller box volume but the bass would be more detailed. Is this necessarily true? I have trued modeling the a box with WinISD but it didn't seem very useful to me. Also, would adding polyester fiberfill be useful in a larger volume box? Thanks!

I have an 18 SX that I would like to have reconed. What is the procedure to have the sub sent in and reconed? What would the estimated price and shipping to 30286 (Georgia) cost? I emailed Fi Car Audio about a month ago, but unfortunately, I never got a reply. I've sent a couple more emails here and there, but still, no luck. Anyone have any ideas of how I can get in touch with them? I would call, but I was unable to find a phone number. Many thanks, Mike

Hows this sound to you guys. (2)15 Bls Box: 17x39x22 = 6.54cubes (after displacement) Will (2)4in flared ports be enough port area or not enough? suggestions please

hey guys i have a single cab s10..i plan on running a single 10 between the seats inverted. i have came up wit 2.42cft...would 2 4in aero ports be big enough?? the guy i am buying it from said with that little of power i can build a 2.0cft box and gain a lot i plan on porting it out the side...would 3 in from the wall be enough room for the port?? my back wall is 52in. and my box is 49x13x6.5x10...also i am goin to use 1/2 MDF..any suggestions??

Will a 3.1 cuft enclosure (after all displacement) tuned to 38 hz work for a 15" Fi Q? With the size of my truck, this is the largest box that i could fit in there. How will this work?

So I just bought my new car, a toyota celica, and I am going to have a custom box built for my q 18. with a kicker zx750, how many cubic feet should I go for? I am looking for a flat frequency responce and a good balance of sq and spl. I know these are all really rough terms but I just could use some advice.

Ok, I have an older BTL18 that was originally a D1 (written on the pole) and its in need of a recone. The owner got ahold of a D2 BTL18 kit, and I got the basket cleaned up and ready. It an older non-woven tinsel kit. But, I have it a snag...the D2 coils OD is noticeably larger than the D1. I have the kit shimmed and in the gap, but is this kit going to work??? Or will the coil hit the top plate when playing? Its a tight fit, but does have some space. Anyone make the D1 to D2 switch? Please reply soon...the owner is in need of a sub.

i got rid of my RE SE 15 recently. ran it in 3 cube sealed,amazing lows, but looking for more output sealed if poss. could i expect more output with a Q 15 sealed due to higher excursion than the SE? if not and ported is the only way, will the Q 15 work well with a 28hz tuning in a box smaller than 4 cubes? my goal is amazing low end extension like my SE had sealed, just louder. i dont feel that a Q 12 will be capable sealed of this compared to the RE 15. amp is a Sundown sae-1200d

Hey I'm hoping to have a Sonic FX Q 12" very soon (assuming DHL can find it ) I was wondering if you guys could recone it in the worst cast scenario were it gets blown??? It is very similar (practically the same thing) to Incriminator Audio's Death Penalty series, (in case you don't recognize the sub). I was just wondering what soft parts you would use in reconing it??? BTL, BL, Q ???? If you need more info on the sub let me know and I'll try and find it for ya. Thanks! Jon

i have purchased two 12 inch FI Bls both are dual 1 ohm, and have cooling and hyperpoles. i am purchasing a box from sonicelectronix.com that fit the specifications of the subs. my question for you is wich amplifier would you recomend? i plan on wiring both of the subs for a 1 ohm load so i was gonna go with a SOUNDSTREAM PCX 2000d any suggestions ?

ok, gonna be fun fitting this in my grand am. removed the double fold backseat. and plan on put a box running all the way from the trunk to behind the driver seat here are some plans for the box its about 9-10 cubic ft right now. questions? shape dosent matter dose it? do u think ill need some more support? how big should i make the port?

Just trying to see if I can get this sub re-coned again because I cant order the re-cone from the site since its a 12 with the 4 inch coil. Hopefully someone from FI responds.

So I have a problem I am getting ready to make a ported box for my BTL 12 that is fully loaded. my big question is how do I tune my port to 32hz? the dimensions are 18w x 14h x 20d which comes out to be 2.20812 cubic feet. can I please get some help and advice I used a slot port calc but I guess the port length looked funny to me. Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators Thank you