SPL & SQ / Fabrication

I own the following items: http://www.kaptionaudio.com/manuals/SPLManual.pdf ( I have the 15 inch) http://www.kaptionaudio.com/manuals/KaptionD-Class.pdf (biggest amp they make) I am trying to build a loud, clean system. The dimensions and information are in the pdf for the sub. Now, I listen mostly to rap, some rock but mostly rap and otherwise a mixed back. I believe sealed is the way to go because I like the clean, clear bass... I will be leaving in the third row of seating in, but have it flipped up (or maybe I should take it out). I need to use the space above the sub for the transfer of some goods etc... Should I center the sub, put it towards the rear seats or t…

It's for real

I've been trying super hard to get my box calculations right. Can someone confirm these #'s?? I really hope I'm on the money. in advance. Box is 32" tall, 15" deep, and 18" wide. Port is 16.5" tall (internal), 2.25" wide, and 40" long. Looking to be 31-32hz, 2.25cu.ft. after sub and port displacement. :fingers crossed:

Hey fellas, After being away for a while from the car audio scene, a friends prototype actually grabbed my attention and I decided to get one. The only downside to this is it is super long (around 17 inches). If any of you guys remember CoDrive, then you know pretty much about this sub. For those of you who do not, it is a double motor, double vc design for one sub. It uses 10" spiders, custom machined sundown motors for 8 layer flat wound 3" voicecoils. This beast will have a good amount of excursion and kill the lows. With that said, it will weigh in at about 100lbs (doh). I was looking at designs, messing around with some myself, playing with bbp (that thing doesn't l…

im makiing a temp system for now in my 95 grand prix. i am needing help on how much port area is ideal for these subs. going to be pushed by a alpine mrp1000 at 2 ohms. the sub is a brand new alpine type r 12. thank you for your time.

well just picked up a 18 btl just wondering what everybody on here suggest for a box all opinions welcome. Will be running a hifonics cyclops xxv for power. thanks in advance.

Hello today i went to my local come depot and they didnt have mdf wood all they had was particle wood, if anybody knows where can i get 1 inch mdf wood at please let me know I AM A be building a box for my btl 18 pretty soon thanks.

so i just wired down my fi q 15 to 1 ohm.. and it hits every note really hard.. and i mean really hard.. but it doesnt sound to clean.. its in a sealed box 2.3 cf could it be because the ohm is set to low? should i have left it at 4 ohms?

i did a 149.0db Sunday with 1 sub ported to 36Hz going to build an SPL box for it now and get over the 150.0db mark with a singel sub Jacob i am out of Flyers need more as everyone is wanting info SounsStream 15"XxX

I want to try out a transmission line box or quarter wave, whatever its technically called, and want to know if im off to a good start... I want to use a 10" Fi BL Dual 1 so 41.5fs with an sd of 310cm^2 = 48in^2 1130/41.5/4*12 = 81.7 inches... so my design looks something like this... I dont know much about these kind of boxes it just sounds like a fun project, If it turns out horrible I only lose a few hours and a little off my wood stockpile...What do you guys think about this design and these measurements?

hey guys, i used the re box calculator to make a box for my 10" fi bl. the box is 1.457 cubes for my sub after port displacement. the port is tuned to 33 hz. it doesnt sound good at all. i followed the cutsheets and everything and there is no leaks in the box that i can find. im just kinda wondering why it doesnt sound good. also, i used 3/4 inch mdf for everything but the baffle and the back. i used 3/4 plywood for that. could that be why it doesnt sound good? please any help would b great. thanx.

Looking to get a decent prefab until I have time to build a box. Anyone have any reccomendations?

i built my box for 2 18" but one got busted in shiping i have a big comp coming up and will it be saft to run 1 in 11cuft on about 4k just to get my points up

Hello, im building a box for a loaded 12 btl. i have an odd shaped box i made to fit under my silverado back seat. my question is how should i run my port/s. the box is wedge shaped with 3.6 cubes gross. the box dimentions are 11.25 high in front 8.5h in back 53.5 long and 16 deep. any idea on port location? trying to get 14 sq/in of port per cube seems hard. thanks steve height1 11.25" height 2 8.5" length 53.5" depth 16" the sub will be facing up on the drivers side

I have 2 Orion H2 12.2's to be powered by 2 Orion 2500d's and want to build an enclosure for them,the only problem is i'm not sure of the air space to run.I want to shoot for max spl,i was told 4 cubes per sub tuned @34 hz is prime but i'm not buying it.Any help would be appreciated,thanx!

website specs say they like 2.5-2.75ft^3 do they like larger than 2.75 or should i keep it there?

I'm looking at piping for a 12" port for my next box; please for fucks sweet sake tell me there's cheaper 90* bends out there than four hundred dollars. I just need a 12" port 48" long to get my tuning. I don't want the box more than 42" wide, so i'm looking for a bend or two this is the kinda stuff i've found so far http://www.lowes.com/pd_574544-1814-PVC+00300A+2200_0__?productId=50114329 http://www.homedepot.com/p/Charlotte-Pipe-12-in-PVC-DWV-Vent-90-Degree-Hub-x-Hub-Elbow-PVC-00300A-2200/203950072?cm_mmc=Shopping%7cTHD%7cG%7c0%7cG-BASE-PLA-D26P-Plumbing%7c&gclid=CIa7vLPw2ssCFQ6maQodb7sJAQ&gclsrc=aw.ds http://www.pvcfittingsonline.com/12-class-…

After searching for a subwoofer I have decided on the DCON 12" it seems perfect for what I am looking for. My question is regarding the box I saw the recommended plans were 2.25^3 at 30hz I think but I have plans already for a 2.5^3 box tuned for 35hz. Would the sub work well in that box or should I scrap it and just build the recommended one. I also have a 350 watt alpine amp, would it be ok to run the dcon at 350 watts? Thanks in advance for any advice/help. - Alex

Hi all. Just wanna show you vids of my new daily system. As shown in title we have 12" Fi BTL N3 and MB Quart Discus 2000.1. Sub connected 0,7 ohm. Box about 2.2 cuft tuned 36-39 Hz. Battery 65 Ah noname . They do more than i expect . Feel free to comment ! Watch until the end and use HD.

Thanks in advance for the help. Alright I am planning on getting a 12" Fi Q D2 and already ordered a sundown SAZ-1000D to power it. I've never built a box before and I dont trust the audio shop here. I want to build a L shaped ported box. Its going in a 1997 chevy blazer so I have room. First should I go sub up port back or sub back port back? What are the benefits of each keep in mind I'm not going for spl. According to Fi "Ported box we recommend using 1.8-2.5 cubic feet @ 28-33Hz (I personally think that a 32hz tuning is optimal, and has the most output and is still the most musical daily driving). Use 12-16 square inches of vent area per cubic foot of volume." So I…

they had it locked on to show just the highest db hit, so idk what i made on tones. my sweet spot is somewhere between 40-45hz but i hit 135.7 with my single 12" FI Q w/ BP Option, powered by SAE 1000D my first box, tuned to 31hz playing the opening of Tortilla Chips by T.Bizzy. mic on driver side dash, passenger door half down. in a 2001 Jeep Grand Cherokee. sub and port facing back hatch nothing fancy in here. i know when i bought it i was curious of some numbers, i know it's not made for SPL but i was somewhat impressed with what it did.

What up SSA. Thinking about ordering a single Gcon 12" and running it ported but just want to make sure my calculations are accurate before doing so. Volume (Net): 1.81^3 ft Dimensions: 13.5" (H) x 30" (W) x 12" (D) Tuning: 32.75Hz Number/Size Port: 1 x 4" Flared Port Length: 15.5" Port Area (per cube): 6.94"^2 Vent Mach: 0.11 Is there enough Port Area? Is this a good size/volume for a 12" Gcon? Also, I plan on placing the woofer and port on the same baffle, on opposite ends. This would require a 90 degree elbow bend for the port but there should be over 7" of space between the end of the port and the subwoofer so I don't think that will be a problem.

Currently running my 12" ICON in a 1.35 cu ft sealed enclosure. The car is a hatchback. While the sub itself sounds clean and puts out decent volume, I'm often wishing it hit the lower notes a bit better and was louder. Is anyone able to help me design a ported enclosure for this sub? I'm trying to keep the footprint of the enclosure as small as possible, but I understand it'll take more space than the sealed setup currently. This is the current setup: Untitled by riored4v, on Flickr Regarding the height, i can't really go much taller since this still allows me to use my hatch cover to keep everything out of eye sight. Its at 13.5" tall. Any help would be ap…

Just finishing up a ported box I did for my Icon 12's. Still have to cut out the woofer holes. They'll be facing up. Anyone have some suggestions on how I should finish it? Stain, paint, carpet? Port painted white? Or stained? Any ideas appreciated.

Hey all. I've been riding with the ICON sealed for some time and want to put it in a ported box. Really not sure how to make sure the design is correct or even how to work WinISD but below is what I've gathered. I was posting on diymobile and got some help and was suggested a ported box, 2.0ft^3 @ 30hz will give the flattest response. Below is a copy paste from the sticky of "making a correct box design thread" Vehicle : 08 Acura TL Location in the vehicle: Trunk Space available (Length x Width x Height): 23x19x14 (Can be wider and deeper than height) Subwoofer make and model: SSA ICON Subwoofer Size: 12" Number of Subwoofers: 1 Type of Port (Kerfed, Slot, Aero, etc.…