SPL & SQ / Fabrication

heres my box measurements 5.339 cubic feet i want to use areo ports to tune this box to 30 Hz I want to use maybe 2 - 4 inch areos or what ever you guys think would be the best to use please include the measurement of the flares too please break down the measurements to the areos ill get them for parts express. thanks guys, Bill. ps I need to know asap cause i have the box built its ready to go.

im building a box for a Pioneer TS-W1207D4: 1.65 cu ft 3"x5.5'' port displacement: 0.076 the box ive built is about 1.9ft^3 without any displacements. i'm assuming the 3"x5.5" is the port area and i just need to calculate the length? if so, how long do i need the port for ~35-38hz?

I just bought a 15" fi btl dual 2 ohm off of craigslist. The box that came with it is obviously way too small and tuned to high. I was wondering if anyone could help me figure out what size of box and all that stuff I need to get what I want out of it. The current box is 19"x18x17" that's about 3 cubes and inside that enclosure is half port and the speaker. Way too small. It lacks lower end very much. Im running it off of a autotek ss1500 at 1 ohm. I want it to be audibly loud and hit as hard as possible. I have built many boxes but just want to really make sure this one comes out really well. Any suggestions would be appreciated. Thanks.

hey guys i have a box in my 2000 grand cherokee in which i had a single sa15 but now the sa15 is sold and i just bought a Zv2 15.. my box is 36.5w 14.5h 11.5d and the slot port is 3x12x19 so i know i need to make the port bigger im just not sure how big it has to be.. trying to tune it to 32 htz... any input would be wonderful thanks

I've got a pair of Kicker comp CVT65's just laying around and I thought I should do something with them. the manual says 0.2^ft sealed and well.......that sucked. wondering if anyone on here has any experience with these in a ported enclosure or any other recommendation that might make them work.

I am wanting to try building a enclosure with a flared port and was wondering exactly how to do it if anyone can help with this i would really appreciate it.

does anyone know the t/s parameters for an oz matrix elite 12.2(dual 2 ohm voice coils) since i can't find the bl or sd measurements anywhere? and from your past experiences what enclosure size,port and tuning is best recommended for maximum street bass?

Okay so i'm planning on having a box built for 2 12"s and having the subs face the roof (see pic) I'm wondering if I have a top piece of wood above the subs, how that would affect the sound? The top piece of wood would be above the subs by a couple inches. This would allow me to put stuff on my box for storage (ex: my backpack...) Does this make sense?

Im gonna be getting my 15" custom juggernaut back from PSI soon and i was gonna build a reg ported box 4.5 cu 35 hz first, but i am kinda dabbling with the idea of a 4th order. ive tried looking up some info but so far i just have spent alot of time and still dont know that much about them. any opinions, advice or tips is appreciated. im mostly looking to figure out what the method is on figuring out how many cubes you need inside the sealed area, and how much you need in the ported area and what you port it to, and why you port it at that hz. im planning on building multiple boxes for this sub to figure out what i like best

okay, well I got some money for my birthday, and was thinking of picking up some mdf to build a ported enclosure for the SUV. Single 15" sub off of 600 watts. mfg reccomended optimal enclosure is 4 cubic ft. tuned to 34 Hz. My max dimensions available are 38.5" W x 24" D x 18" H Here's what I was thinking: 38.5" wide by 18" high by 18" deep (outside measures, using .75" mdf) Sub up, port back. Port 16.5" high by 4" wide by 28" long (acoustical, physical 23.25" since it will have a bend) gives a gross volume of 5.82 cubic ft, net of 4.24 cubic ft after subwoofer and port displacement, tuning of 33.8 Hz will be adding some bracing but not enough to bring tuning …

Does anyone know a site where you type in your demensions and it figures it out for you with a cut sheet?

Here is a link from CDT that has basic knowedge on staging, also includes many install guides and specs for their products. http://www.cdtaudio.com/downloads.htm

Can anyone make one for me? I'm not very good with sketchup or the cutlist plugin.

I just bought a 18" FI BTLN2 and was wondering what is the best way to build my box. It is going in the back of a '97 nissan pathfinder. I know you need 3/4" MDF for the box but can you use 1/2"? thanks

Is the correct way the measure a port that has a 45 in it or do you measure like a standard L-Port.

think this is a good stasrt for a moderate sq set up i have a kenwood 6019 indash focal 165 6.5 v2 pollyglass componants focal 6.5 pollyglass 2 way coax. kicker zx1000.1 kicker 350.4 an 2 re se 12's subs. im thinking of swaping amps out to something more powerful but is this a good start?

Im about to start building my box today, and i want to know the right screws and glue to get for it. thanks for the help.

I need to find out what the correct airspace is with this box. The depth is 20" with the sub facing up. The 36" is the bottom of the box. It's shaped like a "T" to fit over the wheel wells. I know it's kinda crazy, but I need to maximize the room I have for an 18" sub I have coming in shortly. Thx for your help, Vic.

i need to build a box around 2 cubic feet tuned at 33 htz with a maximum height of 17 inches, does this look right? also, sub up/port back or sub/port both back?

subs: 3 12" hx2 do i need 4" or 6" ports? tuning suggestions also welcome...i was thinking 6 ft^3 @ 34 hz

I build ported boxes on a pretty regular basis using the re enclosure calculator and they are always slot ports but i want to build a different box that uses a square port that isnt a slot port but I dont know the formulat to calulate the port area or convert the round port to a square port can anyone please give me some insite on how to do this please thanks alot .

If you're building a downfire enclosure, how do you calculate the distance from the floor? I've searched and haven't found a definitive answer. All i've found is calculations for woofer sag and "just do 3"-4" from the floor." Half the radius, or plus 5% of Xmax... What? Help please! Thank you.

Im thinking of wallin my truck (2000 gmc Sierra ext cab) and dropping another death penalty in there. But I have some questions. What is the best side for the body or dead center? Also would the area around it have to be completely sealed or can there be gaps along the sides behind a beauty panel? Do I double the port area? And will this affect sound quality?

When Calculating port length, How can you enter the box volume after port displacement, without knowing what the port length will be. Or do you put in what you want your box to be after the displacements and then design a box that takes this into account. For example, if you want a box to be 4.5 cuft. after displacements you would use this to calculate the port length. Then after you have that you would calculate the port displacement lets say is .5 , SO you would do .5 + 4.5 to get 5 cuft., then design a box that is five cuft before port displacement and use the port length that was calculated to get the desired tuning? If someone needs further explanation please ask. …

Okay, have done some reading around, and from what I'm seeing is that guys are getting good results in x-cab s-dimes with an up-firing sub/ side firing port design. So, I'm thinking I might give this a try. vehicle: 03 chev s-10 subwoofer: RE Audio SEx 15 (dual 4 ohm coils) Amplifier: JBL GTO 601 (600 watts @ 2 ohms) Looking at doing an enclosure out of .75" MDF Outside measurements: 15" height * 40" width * 16" depth Slot port: 14.5" wide * 3" high (port area of 43.5") * 23.5" long (tuning ~33.5 Hz) Net enclosure volume: 3.6 ft^3 Big question I have is, will 43.5" of port area be enough, or do I need more to prevent terrible port noise? Thanks for your opinions in advanc…