Fi Technical

my max dimensions are W:40: H: 14 or so D: 20 freq wanted. : 32. Daily driver. could someone help me our, or is my height screwing me over?

I have a 07 Tahoe and 2 BL dual 1 ohm 18s on a hifonics BXi 2010. I was looking to add 2 more 18 BLs in a 18cu. ft. ported box tuned to 32Hz. I also wanted to upgrade my amps to 2 RF T2500-BDs strapped at 2ohms. My question is will this be too much power for the subs? They are fully loaded for daily use. Please help. Thanx.

I have a 15" Loaded BTL that is in 4cubes. The box is .75 MDF. I will rebuild the box, should I doublewall anything other than the front baffle? I will probably resin the inside of the box, as well as brace it at several places.

The ssd 15" does 21 mm xmax. How did you guys get 27 out of the Q15" with only 200 more rms? Also will it be alot louder then the ssd 15"? Its going in a ported enclosure.

I bought 2 12" SSD 2 ohm DVC subwoofers about 4 months months ago. I finally finished the fiberglass box three days ago. Anyways, I'm using the Sundown Audio Mono 1500W rms amp, and as my cousin and I were looking over it we realized that there was no possible way to get two 2 Ohm DVC subs down to one ohm with that set up. We'd have to do 2ohms which would only be giving me half the power from that amp. My question is, what can I do about it? I emailed [email protected] 2 days ago and I haven't gotten a response so I was hoping the forums would be a little faster. Is there any way that I could ship the subwoofers back to you guys and get the dual voice coils changed to…

Hi, Ive got a MTX TA81001 amp that pushes 1500 watts at 1 ohm and im going to run a 15 inch Q. Do i need to get the BP option or will it be fine without it.

How would i wire this my friend told me to get the dual 1 ohm and he knows what he's talkin about but the amp is rated at 1000 rms @ 2 ohms. Can someone tell me how to wire this

hi, im new to the forum and been looking through countless threads but cant come up with the best set up for myself. i would really appreciate everyone's help! i already got a system in my car but im not happy with the bass output (plus the subs are overpowered and keep going out). i mostly listen to rap/hip hop and want to be as loud as possible. currently, im running 2 boston acoustic g5 12s and 2 12" radiators off of a mtx 1501d. the enclosure is a custom install in my spare tire well which gives the 2 12s 1cf each, the radiators are separate. im thinking about replacing the 2 12s and the radiators with just 2 Q series 12s and i see that 1cf is enough but 1.3…

I've got a Q15 with BP Power in 4 cubes @ 32Hz with 58.5 sq. inches of port powered by a Sundown Audio SAE-1000D in my grand marquis, and I want to try a new enclosure. This is a trunk car and the seats do not fold down. What were your favorite enclosure specs for the Q15?

Well, we just slopped together a set up for this years nopi nationals in atlanta. It was 3 kicker CVR 12's in a partitioned sealed box feeding each sub 2.4 square feet, and also 3 kicker CVR 10's in a partitioned box feeding each about 1.6 square feet. They were stacked and put in the back of a 98' Durango no extra battery, not even another cap. Powered it by 2 Crunch Powerzone 1000W 2 channels. We ran the stock USAC 1801-3001 class, and did well. Hit 141.2SPL at 56Hz beating several guys running memphis 15's. Regardless, we are gearing up for next year to be much bigger and louder. This year's set up was built in 2 days with subs from various cars just thrown together i…

Hey guys. Can you recone a RE SX 15 to a 15" BTL? Let me know!

Hi, sorry to cross post. I just put this in the wrong section the first time... This i what i'm working with: 2006 Dodge Ram 2500 Diesel Quad Cab Big 3 upgraded 2- 15" fi BL 2- kicker zx1000.1 3/4" MDF custom center console box with 5.6 cuft of airspace after sub disp, bracing, and port. Would love to have a bigger box, but space is LIMITED. No divider between subs/ subs share air space Single Slot Port is 15.5" x 3" and 14.75" long (around 32 hz?) Subs will be down firing and port will face up. Definitely SPL Questions: 1- Are the port dimensions correct for a 32 hz tune? I keep getting different measurements depending on the port calc I use. I think carstereo.com…

Could I use a Brahma's 12 spoke basket on my BL, with an Fi recone kit to upgrade my 10" to a 12" ?

I plan on ordering a SSD 18" pretty soon and I'm attempting to make my own box. I'm only 16 and I'm not very good at math so if you guys could help me it would be greatly appreciated. I used the box calculator over at ssa and this is what I got. The 18" SSD needs 6-10cuft and needs to be tuned at 33hz, well I came up with some numbers and I got 19.5"H/ 36"W/ 18.5"D and after displacement that gives me 5.9cuft. And then it gives me the port length, area, and volume. (Port Length = 0.722 inches) (Port Area = 7.069 inches squared) (Port Volume = 0.003 ft cubed) What do I do with those numbers? I have no idea of how to tune a port or anything like that so I will need some he…

okay, so i've got a fi btl 12 fully loaded. but i dont know which amp to put on it, i want to use it for daily driving but also be able to put up some numbers in the spl comps please help me out thanks

I want to buy 2 Fi BTL 18'' with 4000 to 5000 rms each. they will be in a 2006 ford F-150 in a "blow through" i still dont have any amps, i normally listen to music with low notes. some guy told me that if i order a sub with 5k i could not play it for more than 30 sec cause it would burn. would that be true. how much would a sub run of this type?

K, now I know what you are all going to say, BUT before you do please give this a read. I have a pair of BTL 15's (D2) that I am planning on running with a pair of SAZ-3000D's I know the box recommendation is 3-5ft^3, with the power, would I be better off staying on the smaller side? I know when you start going bigger the mechanical ability sub goes down, but the trade off is more forcefull bottom end (which I would like to have). I'm planning to have between 6-8ft^3 net enclosure tuned fairly low around 30-32hz Just curious as to what you guys think about my ideas

As titled says. my max dimension is W33 H17 D26 which I calculate would be 6.52cu^3 after speaker displacement. I have 6.25 round ports and I know its kinna small for the 15Q but thats what I'm planning to use. When I use winisd (i know) with 6.5 cu^3 and 2 round 6.25" port tuned to 30hz I got a 23.57" long. I know my calculation is off because I have not deduct port displacement but hope someone can give input. I know the box is kinna small for the 2 15 but thats the only space I can spare. Most online port calculator wouldn't allow me to calculate 2 ports. Also the sub will be powered by 2 SAZ1500d. Thanks

Looking to purchase 15" ssd d1 and it will be powered by a soundstream ref1.1000 (1000watts@2ohm). Have always wanted to do a single 15 sealed. So question is; should my enclosure be closer to 2 cuft or 3 cuft. I listen to mainly, metal, rap and techno. Any input on what size enclosure will work best for my music preferences would be greatly appreciated. Thnx. Mark Oh yeah, car is a 2001 VW Jetta. If that matters. Cheers

WHICH DESIGN WOULD BE BETTER THE SUBS SHOOTING UP WITH THE PORT AT THE BOTTOM SHOOTING BACK, OR SUBS AND PORT FACING THE SAME DIRECTION.

im going to be buying a single 12" BL within the next week but i wanted to get started on building the box. its going to be powered by a hifonics bxi 1606d. i mostly listen to rap. i got these measurements set up. let me know what u guys think. as far as going bigger i really, cant limited by trunk space. its going in a 02 lancer. W: 36" H: 15.5" D: 15.5" Port Length: 3" total port length: 27" tuned at 32.8hz.

Ok, well i had no idea about tuning or anything when i made my first box. its 9.5 cubic ft with 90 in of port area, and i ran the port length till about the back of the box. ( pics soon). what i was wondering is can anyone provide me with the actual formula for calculating my port length. ( so i can just plug in hz volume and port area? ive got some calculators but like to see everything out. here is what im trying to accomplish by just cutting the box. 34 hz tuning 7.5 cubic ft 90in squared of port area if i my box in a 01 grand am running from my trunk to my back seat, with the btl right in the back seat and the port under it. if i put the port in the trunk would it mak…

with a box at 27x21x27 what size port would i need to run a 18"btl at 2000 watts? this is just the available area for the box. with displacement it puts the box at 7.13ft^3. and i am using 3/4 mdf. or would it be better to run both btl's in the same enclosure and port it. if so the box would change to 27x42x27. what port length would be needed to run it at 32hz?

i need a box design for 2 18" btls. i have enough trunk space but where the port and subs would fire kinda confuse me. the dimesions of my trunk are 27x42x25. would that be enough to run 2 btls with port area? can you even run the btls sealed. i never see anyone talk about sealing them. please help cause i am tryna purchase these subs and keep it movin. hallelujah holla back.

I have 2 btl 18s, 220 amp alt, kicker 1/0 wire 2 aq 3500's (should be here monday). I am currently building my box and have NEVER ran with this much power before so I wanted to make my box a little smaller than my old one I am looking at about 11 cubes net tuned to 36 hz 152 square inch port. I just would like some input if I should go bigger or smaller on the box please input asap...oh ya by the way the subs are dual 2 ohm fully loaded ( I have pics of my equip if anyone needs proof lol)