Fi Technical

ok I am upgrading from a 10 Q in the cab to a 15 Q in the bed with a bed cover and a boot (uncertain what size) i need some help with designing a box height 17.5 width 40 depth 59

Whats the sealed volume recommended for a 18" ssd?

I have an old e12k "blue e cone" DVC 2 ohm, I am hoping I can recone it, its still working and sounds good butI want to renew it I guess, I read somewhere that these were made by RE, so I was hoping I could get an FI recone kit and do it. If this is possible, what could I recone it to? Would the recone kit basicly change the sub into an FI like sub? Or would I need to have a new motor for that? Anybody have any info?

Just ordered a Q 12" 2ohm with cooling and spider option. This will be my first car audio setup so I am super excited. I know I want to go ported but I'm not sure if it should be firing toward the rear or firing up. It will be going in a 2000 Eclipse. Thoughts? I've been looking at amps. Thinking 1500W-1700W. I've read a lot of good things about Sundown amps. Was looking at the SAZ-1500D V.2 Then I came across the HiFonics BRE1600.1D and BRZ1700.1D both are priced at $200. Seems like a good deal vs. the $525 for the Sundown. Anyone have any experience with HiFonics amps? Are they any good or should I just save a little longer and go with Sundown? I'm really a noob to …

getting two 12inch BTL's fully loaded, dual 2 whats the optimal cubic feet this box should consist of and optimal port size

Just wondering,im planning my build and want to use 2 RFT4000.1s.Will that be to much or should i go with the RF2000.1?I want one amp per sub.

is there anyway i can do three ported btl'15.. H=17" W=47 D=31

I've been trying to decide for weeks what i wanted to do for an audio set up. Im pretty sure i have it figured out. Im thinking about ordering it all today or tomorow, so i could use some fast help. Im getting the sundown 1000d and 1 12'' FI sub, i would go fifteen but i don't think i could fit it. I'm stuck between the FI ssd, or fi bl. I listen to mainly rap, and heavy metal(alot of double kicks and what not) so its a daily sub. I like boomy deep bass, i don't care so much about higher notes but the better one could hit them the better. I was also wanting to ask about enclosure suggestions, im not too worried about loosing all my space in the back, but if possible i wan…

I am thinking of putting my BL 10" in my 12" fiberglass box. I want to cut a new baffel to drop into the 12" cut out for the BL to mount to. I am wondering if I will damage the sub being the box is bigger then recommended, I think FI recommends 1.2 max, I dont know how much the box will be after displacement. I am going to be powering it off a RE 12.1 1200 watts rms. What would you guys suggest? I am contemplating doing this because my 1.2 cuft box is flipping over when I mount the sub inverted. It wont drop into the cutout because the basket and terminals are just touching, also, the fiberglass box is MUCH lighter than my MDF box. Let me know what you guys think.

hello im building a sealed box for 2 q15 subs in my 1996 honda civic hatchback, i have a few questions? 1.... should i have each sub in seperate chambers or the same chamber? what is the pros and cons of doing either? 2.... what kind of difference in sound should there be between the largest recommended size encloser and somewhere inbetween? and whats the pros and cons of each? 3.... what kind of effect would there be having the subs down facing? Now for my front stage i want some more midbass, i have 2 different types of 6.5 inch woofers, infinity perfect 6.1 and older set of diamond audio hex series, i was thinking of putting the infinitys in the doors and getting some …

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

Hey I was talking to Scott about reconing my tc9. he said he could, but i think he has been busy lately so i'll post this here lol. I have the address still from and earlier recone i sent in, can i just send the sub in with a little note stating what i want with my contact info?? or would there be something else that i need??

The website says between .8 and 1.5 cu. ft. for a sealed enclosure. Could someone give me a more exact size? Or at least tell me what would be the difference in sound if it was placed in a .8 cu ft box vs a 1.5 cu ft box? I'm currently running an IDQv3 12 and was given an exact volume size for a sound quality setup. What do you guys suggests? I listen to rock and electronic music. Thanks in advance!

I need to know what kind of re cone i can get for this blown RE Audio HC Quad Coil or if i can even get one.. i would like to make it a dual 2 or something wondering what series you think it would stand up to with the FI's i mean this HC is tripple stacked magnet but i dont think its a BTL... i could be wrong thou. Let me know thanks Jesse..

First i want to say hello, first time posting here (hope its in the right section) and after hours and hours of searching and learning i figured i would ask you guys. Well my old system ended up taking a crap on me, the 7 year old crossfire cfa-402 amp i had finally died (still kept the amp) so i upgraded to a Alpine mrp-m1000 amp to give me some room to upgrade, about 4 weeks later my sub died due to my stupidity of not keeping my finger off the volume knob (mtx 5500 15"). but hey i bought it 3 years ago before i knew anything about car audio and it was only $164 and i know i can get alot better from Fi. So now I'm without bass and I'm looking to upgrade to Fi since i …

sorry to make another thread about it, but i can t get anybody to answer me about my mt motor i sent to have repaired..its been over a month! i got a email from scott about it being fixed , then i never heard a thing ...i have emailed fi , and scott many times and no replies......am i ever going to get my motor back????????? or am i going to just never get it back......???? i was going to buy 2 btl 18's from you after i got my mt motor back, but if this kind of customer service is what i have to look forward to , im not going to buy a thing ........please let me know something please...

i already got the amp, would 1 saz1500d be enough for 2 BL 18s until i can sell the 1500d to get a 3000d?

Before you tell me to look at the sticky, let me explain. I looked at the sticky and it said that the a cut list and more in depth enclosure recommendations would be available soon, and that was a long while ago. If anyone has experimented A LOT with the 18 SSD please explain it to me. How much port area, size, tuning, wattage, sub and port placement, and pictures if possible. I really would appreciate anything you can give me.

I would like to get a FI 12 Q sub. On the front page of the FI website it says "All subwoofers are custom made to your desired options in 3-7 business days" but contradicts itself when you go to order the sub which says "30 day build time due to US steel delays." Which one is it? I want one of these subs but not sure I want to wait 30 days for a build on it.

I am new to car audio and need some help. Im not sure if i could fit an 18'' Fi BTL will fit in the trunk of my Toyota Corolla. Thanks

Hi guys, I was looking at the cut sheets for the fi Q 12 ported which is tunes to 32 Hz, and have a few question. what would I have to do, (if it can be done) to the same box, to tune it to 28 Hz? Or Would I have to build another box? Would you recommend tuning it to 28 Hz as opposed to 32 Hz ? What are the prows and cons? Thanks, Shopvac

remember the 4 15" BTL's you sent to me for the SM3-4 build? you wouldnt happen to have a set of specs for those do you? lemme know please Thanx Peter

DAMNIT, well i heard a lilttle noise coming from my speaker today, hadnt played it in about a week, but anyway, i pulled it out the box to find that i have 2 holes in the spiders from tinsel leads, and numerous rips, guessing its from playing below tuning. i need to know how much a recone is scott, i dont know wether i will or just sell it, looking to get a new truck and there wont be room for a BTL 15, its loaded by the way, What to do??????/

I'm going to do my box at 8.8 Cubes with dicplacement I'm looking close to 8 cubes. 8.5 with the sub and I'm thinking about the port. Should I do a 4x18? or a 5x18 tuned to 28hz.. Thanks guys

Ok, after everything i think i have finally decide to get 2 bl 15's. I just need what amp you guys would suggest using on them and i only have about 600 to spend on the amp. Thanks.