Fi Technical

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 a 01 saturn L300 4 door. i pulled the back seats out and throw a bl 18" back there. now, im going to be getting another bl 18". this time the 2 will be in the trunk. how should i have the subs firing and where should the port be located. (firing). the backseats will remain out for my amp rack.

Alright first off sorry for so many topics about all the subs. Im just in the process of deciding and im all over the place lol. But i think i have narrowed it down to either 1 12" Bl with BP Power and Flatwind Coil or 1 15" Q with BP Power. Both will be ported. I will use the US Amps MD 1D (underrated 1200w @ 1 ohm). I drive a 2004 Ford F-150 and will be taking out one of my back seats so i have about 7cuft to work with. As of now i am leaning towards the Q because it is about $70 cheaper and because i also listen to not only rap but country alot... Just want to hear some thoughts and opinions. Thanks

Hey everybody, i have 2 2400 watt mono amps (linked together it makes a 2 ohm load) each amp is 1700 rms (by titanium power) im hooking up a Fi 15"btl 1ohm dvc. how do i wire my sub to have a 2 ohm load? Because my amp goes in protect mode at really high volume help please!!! i just have it wired like this (dont pay attention to the ohms) this connection works alomost to the highest voulume output on my stereo but then goes to protect mode http://www.rockfordfosgate.com/rftech/woof...mp;woofer_imp=1 i tried this but it gets the amp in safe mode at mid volume http://i81.photobucket.com/albums/j230/spa...SERIES-DUAL.jpg any help please!!

Ok i need some help on picking out the amp for my Fi BTL fully loaded i have to amp choices tell me wich one you think is better or if neither of them ar good Amp 1. XT4000DE V2 1,500 watt RMS (4000w peak) mono car amplifier Class "D" fully digital power supply 4000 watts peak output 1,500w x 1 RMS @ 1 ohms 800w x 1 RMS @ 2 ohms 500w x 1 RMS @ 4 ohms Bridgeable Efficiency: 86 % @ 4 Ohms or 84 % @ 2 Ohms or 76 % @ 1 ohm Fully adjustable butterworth low pass crossover filter Low Pass Crossover Filter - Adjustable 40 - 250 HZ @ 24 dB per octave Adjustable Bass Equalizer: 30 dB Bass Boost @ 45 HZ Subsonic Filter: 15-…

I'm looking into getting an Fi Q 15" subwoofer. I want a great SQ sub so I figured this was the way to go, but now I have a dilemma. I'm not sure if I should get the high QTS or not, I know I'm probably going to put it in a sealed enclosure, but I'm worried, if that isn't right for me. If I change my mind in the future and decide to go ported, is the high qts going to be a problem? Thanks.

I got a pair of Q15's yesterday. I put them in the box which is 3.5 cubes tuned to 28hz and they sounded different then anything else ive ever heard. As much as everyone praises the low-end ability of the Q it seemed to me that the higher notes(40-60hz) sounded louder. The low notes made a popping sound that sounded like it might be hurting the speaker. I called someone who runs the ssd series and he said he had the same problem. He told me to tune them to 32hz and it would fix it but the whole reason i wanted the Qs is to hit lows. Should i give the speakers some time to break in or is anyone else having this problem. 2 Q15s 2 MTX TA81001 Thanks Keith

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'm planning on building a box for my sub, but I cant find the parameters anywhere on Fi's website. does anyone have a link or know what the parameters are?

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.

Does anyone know what the F3 for a pair of X 10's sealed in 1cft will be? Will be at 800~900 wrms for the pair. I listen to metal-hard rock, with the occasional techno/hiphop just for show off. Trying to save some space and these woofers call for some tiny sealed numbers so I think this is the way to go.

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.

i don't really want to take up the whole back window up i did some measurements and i can do a box that's 52.5W x 24.5H x 16.5 deep. externally that's 12.28 Cuft 10.18 cuft internal. After displacements of the 2 18's and 3 6 inch aeroports that are 12 inches long each it gives it an internal volume of 9.083. will this be enough for 2 18's for bass racing the 140-149.9 class? i am ordering 4 Sundown 1500's when jacob gets the new ones in. i plan on strapping at 1.4 so each amp will see .7. i also will have 6 optima group 31 yellow top batteries.

I was wondering what would be the best enclosure to make these subs get super loud, but not lose very much SQ? the max dimensions i can use are 58" (W) x 31" (H) x 38" (L), But that's max ( i don't plan on making a box that big unless that's what will be the best. Can you please give some dimensions or an estimate, and also what you think would be the best frequency to tune it to? thank you

Nick can you please confirm enclosure recommendations for the new N2's and N3's. There is no notes in the pinned topics above concerning the new drivers.

Right now i have a 15 d2 Fi BL its sick... but i cant leave it alone... soooo any opinions on the power handling on 2 Fi BL 15's? and any suggestions on a amp to run both of them on? im thinking about reconing my older Bl but its up in the air for now... so any opinons?

that is 1.5 cu.ft after displacement at 35 hz,has anyone here done this? if so,how did it do ?

So after selling my Avalanche, i put my 2 13kv.2's back in my car. This is when i realize how amazingly low the avalanche gets. I am almost set on purchasing a 15" BL to replace the avalanche, but i just want to be sure that i will not be dissapointed with the low frequencies. I know it will get loud, but hell my 13kv's matched my avalanche at certain frequencies too. (BL will be on 1200 watts in 3.5 @30hz if it matters much) Anyone with experience with an avalanche as well as a BL (or other Fi sub, i assume they are a bit similar) please give me some input. I want to be absolutely positive that the BL will be $300 well spent. thanks.

I'm really considering using Fi subs for a new comp setup. Vehicle is a full size pickup, so it will be a blow through solution. The primary question is, which sub(s) to go with. Goals: 150db at headrest, 130db outside on music. It will be entered in MECA's spl and park and pound format. P&P being the 130db outside goal. The two goals are the max points I can attain for what I'm looking for. Obviously if it is higher that's fine. One individual at the 2012 finals did a 155/129 on 4 speakers in a wall (don't know brand and I think they were 15's). I was originally thinking of a single 18, but I'm not sure that will get there. Also, if possible, I'd like to keep the b…

can anyone explain what each acronym or letter means and what option/s it represents? thanks guys.

well ive had my btl in for a few months now, but now, i want something louder. I also want to free up some room in my backseat, just because my current box is HUGE back there. what im wanting to do is recone my 15" fully loaded to a 12", and build a better/stronger box for it. i plan in the future getting a second 20.1, strapping them and adding a couple of batteries. I really want to break 150 on music, would i have a possibilty with a set up like that? i know its all install dependent, but with a good install, could that be possible, without having a fart box?

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 used the cut sheets for the fi btl 12 inch before. Was wondering if anyone has any cutsheet for 15" sp4 in sealed enclosure. Just for daily setup powered of a saz 2500d.

So I have been driving a single cab truck for close to 10 years now. I've always liked car audio and I went from a shitty 10", to a really nice Ascendant Audio Assassin set up, which was pushing the limits of what I could fit in a Ford Ranger. Got an F-150, but I didn't drive much at that point, so I kept my Assassin 8"s and hifonics amp. But I'm getting a Ford Focus hatchback now, and I have been wanting a Fi Q for years, so I want to do it right. I was originally thinking two 12"s, but that seems like it would be a nightmare to power (3000 watts RMS can't be cheap o.o). So I figured a single 15" would be a nice middle ground. I have no idea if I would want to go porte…

Can a pair of Fi Q15's be ported and tuned to 30hz in a properly sized enclosure, if my max external dimensions are 22" (d) x 19" (h) x 38.5" (w)? Less height and depth if possible... I was planning on running them sealed, since I know they have great lowend sealed, but if I can still have great lows with more output, I want to got for that. This is for a Dodge Magnum. My goal is to have the most output while maintaining a somewhat flat response, with the gut twisting lowend.