Fi Technical

Hey guys , i want to build an sq box for my FI BL 10 ! I hope you can help me with the port an the size of the box ! Thanks for helping me ! Nice regards

Which way should I go? - Rockford T20001BD - Audioque 2200D - Sundown SAZ-2000D Will be powering a 15" BTL. Just need some comparisons. Thanks.

hey guys i'm about to get a box built by a friend and was wondering what the best size enclosure would be for my 12" Q. I've searched and read the website which recommends 1.8-2.5 @ 28-33 hz. I've heard mixed opinions, as I should as its personal preference, but what seems to be the best size/tuning for this sub for maximum output while maintaining good sound quality? Thanks!

hello, as stated i am in need of a box design. i got 1 18 Q and a aq1200d amp and it will be going in a 2000 grand prix. so i have about H = 16". width = 30". and length = 32" of room for a box but i do not know how big to make the port. i am going sub on top and port at back. suggestions needed.

does one 18 btl handle 4k rms for daily listening? in a 10 cft box. i just want to get the most out of my btl so i think of strapping my two bxi 2610 two 2 ohm. someone told me one could never have enough rms for music. this guy was running 4 15 l7 on a kicker warhorse.

6 cubic foot ported box in the back of my 01 Jeep...Wondering about the size of my port and anything else that could help me. And also I was thinking about having a few circular ports...? Thanks for any help.

I just finished building my box last night.... Double baffle,Fiberglass,etc... My box after bracing and before the Port was 8.25cuft(internal)I have 119 sqin of port tuned to 30hz. After the displacement of the port I now have 5.85cuft. Now is my box 8cuft tuned to 30hz OR is it 5.85cuft tuned to 30hz??? And would that be too small for an 18?? thanks

I want to make sure I'm not going to burn up my coil on my SSD. I bought my sub 4+ years ago (I don't remember exactly), copper coil option only. Back then they were rated at 800rms. I have it wired down to 1 ohm, so it should be receiving 1200 watts+ since I have read lots of times that Sundown amps usually do over rated power. I set my gains using an SMD DD-1. I know these are frowned upon by a lot of people as a waste of money, but I didn't buy it and just borrowed it from someone who did. It helps to set gains so there's no distortion, so I'm assuming nothing is clipping. That's just my assumption though. I set up my headunit, sub amp and mains amp all with the DD…

i have 2 15"se/xxx's i wanted to know how much power should i throw at them also what do you guys think for a box. im looking for a loud DD. do you think of 9 cubes before sub and port displacment and 135" of port tuned to 35hz's

i have 2 18btls but only one can fit in my car with a ported box. actually i want to sell one btl but in case i dont find a customer who buys it for a reasonable price, can i put both btls in a sealed box? as the other btl would just lay around losing price. i know fi doesnt recommend that. and i know i will lose alot of spl. but how would the sq change?

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!!

So i just got my dual 2 ohm 15 inch BTL fully loaded and I am going to run a 2100 hifonics amp to power it. So today i go to my local car audio shop so they can install it for me and they said that they can only wire it down to 3 ohm or .75 ohm because the voice coils are 1.4 ohm each...However, everyone else on this forum says they are running their 2 ohm Fi sub down to 1 ohm. I am a complete car audio noob so if someone could please tell me if this is true or not i would greatly appreciate it. Thank you!

ok im trying to figure out what to run for a build im about to start. if i had 4 18' ssd's w/ bp power and flatwind and 4 "stock" bl's in the same car, box, and tunning is there gonna be a major difference in loudness, sound quallity.....

Hi, I have been looking at FI for a while and I am thinking about getting 4 Q 12's. I will be running 2 MTX TA92001 amps which put out 3000 watts rms @1 ohm or 2000 @2 ohms. would 1000 watts (2 ohm setup) be enough to max out the sub or should I run a 1 ohm setup and just turn it down a little bit and give it more power. also, I have about 10 cu ft of trunk space and i am probably going to run 2 cubes ported for each sub. Should i seperate each sub in its own 2 cube box with its own port or just build a big box with no seperaters and one big port. and one final question for those of you who have had experience with the Q's and the BL's. How much louder will the BL's get …

Good to go? More stats: http://www.subwoofertools.com/forum/ported...mp;Fs=&CE=0 Anything else to change? I'm gonna buy the MDF this weekend.

So I just ordered two of these X 10's without really paying close attention. I have an Audiopipe APSM1300 amp that does 600@2ohm and 1000@1ohm. My question is are these subs maybe a little underrated because I've also read these amps might be a little overrated. I can always turn the gains and bass level down and go easy on the volume knob. Does this sound like it may work? I dont really have much more of a budget for subs. Im also not looking to be real loud.

I would dare to say I am pretty cautious. I have a 12" Q dual 2, cooling and all that, and am running a 1000 watt rms mono amp to it. I was just kinda curious as to whether it was possible to blow the sub with that amp or do any damage to it. I have the level a pretty safe setting and make sure to keep the bass equalizer down, but i would like to get a little more out of it. Any insight would be appreciated

i want to build a box but have no idea how to go about finding a program some please help or design a quick one for me dimesions are 12W x 10D x 20H i used klaus but keep getting crazy measurements Custom Klaus Audio Subwoofer Box Enclosure Type Box Type: Single 10" Straight Ported Standard Subwoofer Box Item #: 022-015 Subwoofer Information Cutout diameter: 9.25 inches Mounting Depth 6.5 inches Enclosure Details Carpeting: Dark Gray Port Type: Slot Port Port Tuning: 33 Hz Port Dimensions: 11.25 x 1.25 inches (Height x Width) (port length is not displayed) Port area: 14.06 square inches Number of Ports: 1 Net Intern…

I ordered my btl a few days ago (fully loaded) and now it's time to buy an amp, what do you guys think of soundstream? The sub will be going in a 5 cuft pored box tuned to 32 hz Not trying to spend more than 500

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…

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 have a BL 10" with DVC 2 ohm coils, I am wondering how hard it is to install the recone kit FI sells to recone it to DVC 1 ohm coils. I am asking because I am now considering ordering another BL 10", but I would need a DVC 1 ohm to get my amp down to 1 ohm . I know there are some out there that have ordered the kits from Fi, so guys, how hard was it for YOU to recone your sub with the kit??

I'm planning on getting a 12" Fi Q (dual 1 ohm with cooling, spider and heat ring) and putting it in a ported box and I am on the hunt for an amp to boot. I think I found what i want and its a Hifonics HFi1000D but i also saw a Hifonics HFi1200D for $50 more so i was wondering if its a good idea to go with the extra 200 watts and if i should just stay around 1000 watts since thats what the sub is rated at. http://www.sonicelectronix.com/item_23548_Hifonics-Brutus-BRZ1200.1D.html http://www.sonicelectronix.com/item_22705_Hifonics-HFi1000D.html edit: added the amps link.

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

Hey guys i have 2 Btl's fully loaded each runnin off a zx2500.1. Each sub is dual 1 ohm and im looking to throw another 2500.1 on each. What possibilities do i have as far as ohm loads ill be seeing.