SPL & SQ / Fabrication
Calculations, Concepts, Designs, Theories. All General SPL Or SQ Questions Can Be Discussed Here.
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Subs: 2 dual 2 12" sa's Amp: kicker 2500.1 Car: 01 monte carlo Currently I have a 3.5cu box with a slot port, both fired towards the rear. They were fired into the cabin and I got a 140.x. I was told firing them the other way (how they are now) would post better numbers. I've yet to get metered though and can't tell a difference by ear. The plan is to build a new box with a 6" aero port firing to the right with subs facing back. Can anyone chime in with a better suggestion or confirm this would post good numbers? -Thanks
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*hint hint My buddy is looking to build a center console box for an IA Lethal Injection 15. Looking at 3.5 cu ft ~50 inches of port and tuned to 32 Hz. Looking for suggestions and possible cut sheet. Going into a single cab dodge. From the back wall to as far forward as possible without losing cup holder is 48", between the seats is 14.75" and we're hoping to stay as low as possible for a custom arm-rest. Is this possible? How should he mount the sub? Trying to get as much SPL as he can for daily music listening. Driver displacement is 0.15 cu ft. I'd appreciate the help guys.
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Building a box for wife's 2010 Jeep Wrangler 4 door. Leaning more towards a sealed box, but I can be convinced otherwise! Prefer SQL, then SPL. 12" GCON dual 2 ohm running off channel 5&6 on Leviathan amp. Size is not a big concern, but retaining the most possible usable space is warranted with the kids, their activities, and associated gear. I can figure out the dimensionson a sealed box, but haven't played amounted with ported dimensions yet. Outside of the build specs I have a couple of questions: Should I poly fill, or not, and if so, how much? I've read on the Jeep forums that down firing is preferred. Any special considerations going this route? Should I resi…
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I have an 18" zcon on order so I'm starting the build here in the next couple days. I have two designs worked up and just curios what every one thinks would be better, more so concerning port area. I plan on using either a 10" or 12" round port. Box will be sub up port back in an 06 xterra. First design: 6.93 cubic ft. after all displacements with A 10" port tuned @ 37 hz port area = 11.38 per cube Second design: 7.4 cubic ft. after all displacements with a 12" port tuned @ 37 hz port area = 15.28 per cube Just curious what everyones thoughts are, thanks
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I am trying to help a friend build a wall in his '05 denali.. He has four 18" FI BLs and he's wanting to keep his second row seats, third row is gone. This system will be used for USACI SB4 and daily use to please the crowd.. Any help with a design or anything will be appreciated!
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I need a box for.4 12 sa ported to be put in a 99 crownvic can anybody.help me this and a set price would be nice i live in fla
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i have a 12" FI Q w/ BP option in a 2001 jeep grand cherokee. powered by a SAE 1000D @ 1ohm. right now it's in a 1.5cuft (external before displacements) enclosure that i had the (horribly stupid) local audio shop make for me. i was short on time. i'll let you know dimensions of the room i have to work with. but there is basically as much room as you could ever need for a single 12. or i want it ported tuned to anywhere close to 32hz. so yea, have fun, keep in mind this is my first box. and i don't want it to be over (i believe) 16 inches. i just want it to stay below my rear window level. thank you so much i know it's not really hard. it's just a temp box to get some prac…
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ok so one night i was sitting around thinking up some new box ideas. i really want to have my sub facing forward into the cab of my car, and have the port be on top of the subwoofer. so i was doing some concepting and came up with this, Pdf of box idea. I just want to know if it will work before i start building i forgot to put notes so.... notes: 1. double baffle front plate 2. round port edges 3. 2.8 ^3 feet of airspace after all displacement 4. 3/4" mdf or particle board used. its going to be firing forward with the trunk sealed from the cabin. thanks, Anton Miller
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In process of getting my 15" zcon reconed to a 12" but I need to build the enclosure. Car is an "04 Grand prix trunk is painted with GT MAT which I've come to realize works real well. Sub back port back is what I'm trying to accomplish for now. I'll experiment later, but have come to realize that sub back port back sounds really well wamming off the trunk in the American cars I've owned. Running a group 34 up front with 2 XS power 975s in the rear. Stock alt will be replaced with a mech 270 in the near future. So I need to build this box to a 3k setup. Sub will be ran on a mmats m3000.1 with 2 runs of welding wire with knu kollossus filling the gaps big 3 exc. I …
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Ok so im going to build a box for my new setup and im still not getting this port thing. Alright so the dimensions i want the box to be is. Height 20, Width 49, Length 50. And tuned to 32 hz.
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I moving up from an old 200 rms orion 12" sub to 2-fi ssd's with 1600 watts to them ( or what ever my Soundstream will really put down. lol ) Now looking at the follow 2 box designs from here, ( which is super sweet that you guys posted these! ) Box 1. 12" xcon ported Box 2. 12" icon ported Outside of what appears to be an extra dolly of vertical bracing and total port area are the pretty much the same. Of course the overall dimensions are a bit different, but they have the same internal volume and tuning frequency. So which box is better? More port area make a difference when tuning is the same? Any in-site is much appreciated. Got the email today that the subs shippe…
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Hello, I have a 15" Icon sub in a (about) 4 ft3 enclosure, tuned to 30something. The port is just a 6" round PVC tube. I know I have not enough port area. It sounds good But, with the same total volume, would it be better to make an enclosure with the kind of port I can see in all the pics here ? I don't remember the name, sorry! I want to get the best of my sub. (I listen to rap, r' n b and reggae, and I have a saz 1000 amplifier).
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I have the Morel Dotech Ovation 6 two way set and was wondering if I could still use them to go three way sometime next year. I actually was thinking of using the Selenium 6 inch midwoofers as midrange or should I just get another midrange for this? I actually was told to use the Morel midrange but some say go with Hertz Audio midrange. What you folks think and I am going active with this in the future. Thank you.
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I need help mainly with the port calculations for a 10 cubic ft box and a 20cubic ft box This will not be a chambered Box I'm "not sure what size cubic ft box I'm gona build yet" So if you have a formula that can figure port sizes that will help allot this is for two BL 18'' subs. I can build a box just need some help with this. Thanks
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ok, so i have the dimensions for everything, but i want to make sure if its all good, also if someone could do a sketch of it? 2 - 15" nightshades 1 saz-3500D 99 s10 ext cab subs forward, port in the middle firing up but along the back wall of the box. box height - 27 depth - 14.5 Length - 46.5 Port height - 6 width - 16 length - 26.25 net air space 6.68ft3. port area 96.00 in2. @32.19
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Just trying to figure all of this out. One site says figure your tuning dependant on port length, others say by width and height of port (square inches of port area). So what's the verdict? I have 2 SSA Xcon 18's wanting them in a 6.5 cuft (each) box tuned at 31 hz. Also, what is the difference sound quality and SPL wise between having one large port or a seperate port for each sub?
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I have a 99 Siverado 3 door. What I want to do is take back seat out and build a box for subs so they will be behind driver seat stacked on top of each other. Take back seat and get cut so I will still have a half seat back there. No one in my area wants to deal with it. Is this a good idea? I just want my trunk to be able to carry 3 people instead of just 2. Would a ported box still be okay on one side of truck?
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I need help building a wall in my 95 lumina, i don't want to pay 1 grand for a wall that i could build myself. Does anyone near Kansas city missouri know how to build walls? and willing to help a fellow SSA member?
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this is what i got the box is 41''w--18''tall---26''deep--this is all outside --the port is 3.5''tall---27''wide---18''deep----i think i have like--7.75cf net--port tuned to--33hz--can someone tell me if this is right----the subs are the--FI BL 15''---i will have a---ia 20.1--on ea sub let me no what you think and if i need to do something about the box
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im looking a good online site to buy some epoxy resin along with some 4 or 5 inch wide 18oz.(or so) cloth tape...anyone know of any good sites?
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Alright, I want to switch to Aeros from my slot port to give my subs some more airpsace (2 15s with 5.5cubes is a little small for me).. anyways could anyone help me out here, I know how to design a slot port but not a aero port. How many would I need to get proper port area and the length for say 31-32hz? Box is 38.25wx16hx24.5d
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I was playing around i bbp6 and this is what i came up with, is this right or wrong? Optimum Square Prism Box Parts 1 Top, 1 Bottom: 13.27
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Hey guys I have all of my equipment just wantin to see if anyone here has experience with ext cab trucks. I have 2 Kicker CVX 15's goin in a Dodge Ram ext cab and I'm going to port them just can't decide where I need to face the subs and port. Can anyone help?
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im looking at my max dimensions and it looks like its going to be around 8 cubes and its most likely going to be tuned to 33hertz and i was wondering if thats too big? its a shared chamber subs and port up(going in a pickup)
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