Fi Technical

will it be safe if i'm smart with my gains? is bp power a must? i plan on not using the full 1600w. because my electrical will crap. 2.24cuft 34hz thank you

Foreward fire in a trunk, which of these three boxes are better. The smaller the box the closer the back of the box is from the back of the sub. All are from RE's box calculator. Each box has 16 square inches of port per cubic foot, the first two are off by -.003- & +.008 sq in. The box is 23-26 deep, is that bad for dampening? How far should the back of the magnet be from the box? 2 Fi BTL 12" 4-6kw @ 1ohm 2.46 cubic feet each @ 34.75 HZ with 78.75 square inches of port, box face is 17 x 37. Port 5.25 x 15. 1" MDF/1.25" spacing. 2.719 cubic feet each @ 32.78 HZ with 87 square inches of port, box face is 16.5 x 37. Port 14.5 x 6. 1" MDF/1" spacing. 2.8125 cubic feet @…

Does anyone have plans for a ported box for a Fi 15" Q? It will be in the back of my 06 impala. I can post the dimensions of my trunk later, but any help would be awesome. I was looking for something tuned around 30-35 hz. Basically, I want something thats gonna really make my Q slam because all I really listen to is rap. Thanks.

so will 3 ssd 12's work in a 5cf box tuned at 30hz work? i have a thing from subwoofer tools.com right now im tryin to figure fit the subs on the box design on google sketchup heres the link to the box for 3 ssd 12's i guess http://subwoofertools.com/forum/ported-box...mp;Fs=&CE=0

Im designing my box now for my BL 18 and wanted to check something i read in the BL sticky for enclosures. For the ports, you need 12-16 in3 for each 1 ft3 the box is? So this means that the port would have the same volume or bigger than the whole box? Heres my box idea before i read this post, It has a little over 1 ft3 ports due to the aero. http://feat.putfile.com/profilepics/main/6...75120100648.jpg I will post picks of the trunk and the denesions later to see if someone can help with a better design.

I have been told the 12 ssd weighs 25 pounds, i was curious what does a stock 12" Q weigh? Just curious because i might get one if i can sell my 2 12" HCCA's old schools.

my glue is coming loose from the surround to the basket what can i use to reglue

i was just thinking(usually dangerous) i have an amp that is1200 @2ohms mono, 600per channel@1ohm. presently i have dvc4 woofers if i hook them up the regular way i get 4ohm or 1ohm mono. i have been reading that some people hook an amp to both voice coils so each amp i guess would see 4 ohms off each coil, right? now heres the crazy part; shouldnt i be able to take the + - off one coil on one speaker then the + - off the other put them together on one channel and get 1 ohm? then do the same for the other coils and get the same for the other channel, now all four coils are running off two channels thus giving the amp its 1ohm per channel? . is this possible or am i thin…

Will a 6" aero port be enough for a fully loaded BL 15 in a 3.5 to 3.8 box

I found this box on woofersetc.com the dimensions are: * 12" Single Ported Box * Height: 15" * Width: 30.5" * Depth: 15" * Mounting Depth: 11" * 3/4" MDF Construction * Volume: 3.00 cu. ft. And I wanted to know if this would be a good box for the fully loaded 12" BTL sub? Thanks for any responses.

I'm going atleast a 7cuft box tuned to somewhat 30-35hzt range. I'm building my own box and the subs aren't here yet. According to UPS the subs weigh in at 54lbs each. I'm simply asking if i should double baffle the box?

2004 Monte Carlo a pair of 18" fully loaded BTL's a pair of Power Acoustik A3000D amps one lonely termlab 500 pounds of wall... 153.6 @42 hz windshield 152.5 @38 hz MECA reality stand 151.8 @30 hz winshield ...and just for Meade... 150.6 @27 hz all in all these subs are very impressive and tough. the monte carlo lacked a lot of the needed airspace to make this setup do the 155 i was projecting but a little added wattage will fix that issue (BTL's like power and dont be afraid to give it to them). innitially there was some metering issues getting the car to go over a 150 which is the main topic of my post. 40…

Before i purchase the new baskets and recones i would just like to have some info or how to swap the motors from my 12'' q's to the new 15'' baskets? what kind of tools will i need and is it easy to do?

I'm putting a Q10 in a sealed box and am looking for a good size for SQ. The website recommends .2 to .6 cu ft. I should have 1000 watts @2Ohms available. Would a larger or smaller box lend itself to better SQ. Thanks.

a friend wants a fi q 18" in a blow through box in his S10. my thought was to build a box in the bed with a collar of linexed MDF into the cab. once i have the box built then i would build another box over it to span the distance of the bed rails and help weather proof the box in the bed. a ZX1500.1 will be his amp with a 220A mechman alt and a XS 2500 battery. he mostly listens to chilly peppers, some techno, basically what ever pandora throws on. to that end i think the sub might do well tuned a tad higher than 32 but what are your thoughts? is there anything that most people over look when building a blow through?

I have 4 fully loaded 18 btls in a 20cuft ported enclosure..dual 1 ohm subs.. I have the option of using 1 or 2 jbl a6000 amps to power them. My installer thinks that using both amps will blow the subs. He hooked up both amps and said the woofers started smelling. When he used 1 he said it was actually louder. I think he may be trying to save me from replacing subs over and over. Will using both of theses amps eventually blow the subs? If I get 2 more and put 3 on each amp will it see a 4 ohm mono load...something like the JL w7s? Thanks for any help

Hi guys I'm planning on starting a new build in my 05 Hyundai Tucson. I would like to run 2 18in btl n2 in a 4th order bandpass no wall for daily use. I've contacted a person to design the box he said that it would be fine ofcourse he's getting payed but I would like to hear what you guys think.

I am interested in two 12" BTL N2 dual 1 ohm with all options and daily coil. I have 3300wrms available but I will set gains accordingly. I would like to keep the enclosure as small as possible but within an optimal spec. What is the recommended enclosure size for my setup? Thanks edit change of plans

I might buy a new dust cap for my sub i mean yeah it'd look odd but yeah this one i have is horrible. How much is it to buy one and how easy is it to put on? Also is it possible to just ship my sub to FI to see if they can recone it completely? Its a 4inch coil and idk the ID of it yet. Thanks Joe

Box is for a FI BL 12 in a Dodge Stratus. I went with a 28Hz tuning for more SQ over SPL. Please share your thoughts Port Type: 4" Flared Port Port Tuning: 28 Hz Number of Ports: 1 Net Internal Volume: 2.5 cubic feet Port Volume: 0.0066 cubic feet Subwoofer Displacement: 0.1500 cubic feet per subwoofer Total Internal Volume: 2.6566 cubic feet Number of Terminal Cups: 1 per subwoofer Front Baffle: Single-Layer Front Baffle - 3/4" Thick Box Dimensions: 22.625" (w) x 20.125" (d) x 13.75" (h)

I am going to be building a new box for my 15 inch q because my current one is a little too big. The dimensions I am working with are 14high, 32 long, 20 inches deep. I am having a hard time understanding what size slot port would it take for this box to be tuned to 33hz. Since I will be going with sub up+port up, the port can be either 30.5 or 18.5 inches long(depending on if make it long ways , or short ways) but how wide, and long should it be? (would like to face them back but they will be too close to the back of the trunk....I can also face them forward). Also, current box is 14x32x24 tuned to 33hz....will I see a huge decrease in output with this smaller box?

Do you guys offer a recone kit from Fi that will fit the RE SX motor? If so, could you PM me a price please? Also, would you be willing to sell the recone + motor for a Q? Let me know!

Does the cooling option effect the performance of the sub? like does it make the sub quieter or anything? i read the flatwound coil makes a sub prone to peak so what does the cooling option do?

Ok so i got a 18" BL Fully loaded and i was wondering if 1600 watts is not enough if someone could tell me that would be nice thanks.

ive been using subwoofertools.com to help me figure out what my dimensions are going to be, but i have a problem. My max dims are 36x24x12, which correct me if im wrong is 6 cubes. but i cant ever get the depth to be close enough to 12 inches for it to work. id like the box to be about 4.5 cubes at around 34 hz. the closest design ive come to is 4^3 at 34hz, but that is with the xmax part at 16... im really frustrated right now.