SPL & SQ / Fabrication

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…

Hey all... got another question here . If you use aero ports, is it possible to build the box smaller in relation to a box with slot ports, or is the port displacement the same for both types? Thanks

hey guys i need some help figuring this out.. i have a box with a slotted port.. the port will be 15.5 tall and 4.5 wide the question i have is how deep does it need to be? i want the box tuned to 38 hz the dimensions are 17x30x25.5 (HxWxD) for a total of 5 cu ft im waiting for this i have all of the box cut and ready to be put together other than the port.. btw this is for a mach 5 spl-15 i'll get pics of everything when im done too

aight. i have 3 12" california profiles. i have 3 custom 1/2 mdf wood boxes. there in a ranger single cab. i have 2 behind the seats and one where the center floor console/ cup holders were. i dont have the exact specs but there .40-.50 cu. ft. of airspace for each. the subs need 1.25 cu. ft. of airspace, but there just temporary till i get sum new ones. well my question is..they really dont have any excursion at all. they really bump but dont really move. i figured its cuz of the super small boxes. and probally cuz i didn't put any poly fill in em.or maybe cuz there low rated subs, they have like 50 rms and 350 watts peak but if i get sum 12" kicker cvr's or even some sh…

I haven't had much experience with the science behind port tuning/building, but I've been doing a little research and some calculations and have a question concerning port "size". Let's say I have a 1 cu.ft box, and I want to put a aero port in it with a tuning of about 33hz. I used a calculator and I came up with a 2" diameter port with a length of 6.3 inches.. or a 3" port with a length of 15+ inches.. My question is, what's the difference in having the 2" short port as opposed to the 3" long port and achieving the same tuning? To me it would just seem logical to go with the small and short port to save space and material, and just be an overall convenience.. but this i…

so today i noticed my port feels like 80grit sand paper becouse i forgot to glass it will fiberglassing this thing give me gains??? its gata sound better right?

Ok i'll prolly do this some time this week or next week. But basicly to put that port in the deck like you guys where saying i would just have to find the total Cu. ft of the whole box. And plug my information into this handy dandy online calculator. http://www.carstereo.com/help/Articles.cfm?id=31 and i should be fine right? not tuning this thing is gonna be hard as hell.lol I already know the length is gonna be like 40in long. but i can make it smaller if need be. And i'm gonna guess and say about 17cu ft. only thing is since its a daily driver and i want to use it for comps, how can i tune it? I mean 45 sounds like a good start, but for daily i dont want it that high, …

So I been looking on here and reading about fiberglass and my ? Is what is every body talking about when they say they mix there fiberglass with sand...or is sand another term for something else like I say Mud when I'm mixing autozone fiberglass hardener because it looks like mud to me....main reason is I want to and a couple layers to the inside of my subwoofer box with some good fiberglass or would the stuff at Walmart or home depot be good enough....

Now I gott figure out the volune but my wierd ass box isnt liek any of the calulators boxes

88120 TI - D3, well really a D4 so thinking some where around 2-2.5 cu ft. @ 32hz off of ~800w rms what do you guys think? Brandon

Ok I owed a freind of mine some money so he asked for a box and retarded me i said ya lol so here we go. It will be a bit different decieded for free i might as well do something different try something new. 1 cvr 10 1.8cubes tunned to 36hrz with an external port 28sqin.. design will be up in a bit and box will be bedlined

I want to make some MDF speaker rings that look something like this: But I want the 6.5 and tweeter to fit flush with the mount. Should I just use two pieces of 1/2, and make the inside ring the mounting diameter, and the top piece the outside diameter of the speakers, then glue them together? I may just have to do some experimenting. I'm going to try and mount them in the door in place of the stock 5x7s. I've been thinking of fiberglassing them into the doors, and I probably will in the future, but I just need something temporary right now since the XXX 6.5s will be here tomorrow, along with my BTL. All I'm waiting on to build my sub box is two 3/4"x9"x18" pieces of ple…

So i was a little bored today and had an hour to kill. I figure, all the equipent I have laying around... I might as well put something in the truck and play around. Dropped in my old CRX-stlye box, pair of RE SX 15"s, and an Orion 2500D. Setup for 2kw before Imp. Rise. Ran a sweep, found the boxes peak with these woofers. Burped a couple of times. Then went back to a sweep to get a good reading before the batt drained too much. Stock Delco batt (3 years old). So far for this season in Street C, this would've put me 6th place. http://www.termpro.com/asp/leaderboard3.asp Not bad for dropping in and not testing anything. -Nick

Well I've been messin around with WinISD for the past hour, converting units to metric and back again, etc. All I can say is, I'm completely lost. In case you haven't read any of my other posts, here's my equipment: (1) 18" Fi BTL N2 (1) AQ2200D (1) XS Power D1200 Those are the only things I have purchased so far. Right now I'm trying to figure out what I'm gonna do about the box. I think I'm gonna go with a slot ported box, tuned in the upper 30s/lower 40s. Only problem is, the process of designing a box that won't sound like shit is a tough task that is starting to become overwhelming. First question: How do you know what size box to put into a calculator such as this o…

So basicly, box in trunk, 2 18's and 1 amp. for whatever db and iasca i guess, but for iasca i would have 2 amps

So I am stuck, cannot decide what to do or which direction to even go at this point, need some assistance and I will try to make this short as to avoid the TLDR syndrome. To start off here is what I have currently in the vehicle (a 2009 Honda Fit), (2) Sundown SA 12’s wired to 1ohm on a SAZ1500D. They currently sit in a ported box that is 20”Hx31”Wx16”D, with (3) 4” aero ports 12” long, yielding a box of 4cuft net, tuned at 38Hz subs up port back. While this has been the loudest box I have built, it’s not the only one. I built another 17”x39.5”x16” with (1) 6” aero port tuned at 34Hz sub/port up, and finally another with the same dimensions however this last one was a slo…

I have never done a wall before, and i am really interested in them. If its not too much trouble i was wondering if i could get schooled on them -- how to prep a truck for a wall, the do's and dont's, bracing, etc. etc. etc. I would like to become confident before going balls deep into this build and I don't want to be slapped in the face by how little i know half way into the build, ALSO i want to know what i am getting myself into before i start cutting. (ported, 10-20 cubes) i seen the build a wall build and it had a SHIT load of 2x4s.. would i have to do this to my truck? The truck will be a 1986 GMC Sonoma (S15) ext cab and the equipment is 2 or 3 (depending on how …

I've used the original without problems for quite some time. I upgraded to the pro version which has a lot more features but never could get it to work. It would always crash or show errors when I loaded the T/S parameters. Fits of rage and nearly throwing my laptop under a moving bus. Andrew Vaserfirer from HTS figured out the solution. After doing it exactly how he told me it works perfect! I wanted to pass along the info since I know several people have had issues. Again, this is all compliments of Andrew. Ensure that 'Auto calculate unknowns' is on even if you have all the data. This is recommended because WinISD Pro can be very picky about the data and if it is e…

So I'm installing a Xcon 12" and was wondering what would be the best placement of the sub and port? Size of the box and tuning? Or if I should so sealed and ported? If ported what type of port? It is going in a 01 eclipce hatchback!

I was designing a SPL box for 2 10's but i was seeing in other box's a triangle down in the port here is a image of my design. is this correcto or do not is very efective in spl designs? is for 2 10" it have 2.33ft3 with the woofer, port & 45's displacement, the triangle is not contemplated in the displacement. i hope you can help me

I am planning on running 2 15" HDC3s (copper) and im either planning on doing a slot port in 8cubic ft tuned to 36hz with 2 AQ2200 OR I've been thinking about doing a wall, about the same size or bigger, tuned to the same (i think) -- I'm thinking the wall will give me more output/power??? - thats what i need to know I have a 86 s15 and this would be my first time for a wall, so i dont have a lot of info/knowlage on walls. -im rushing to go to class, i know im lackin info and mispelled words thanks dom

http://www.audioholics.com/techtips/audiop...ples/cables.htm

How do i tell if its my sub or my box or my tuning that is making certain notes hit weird like the song run this town by jay z sounds like s**t in my car. Btw i have an L715 in a 4.44 cubic ft internal box tuned to 34hz and it is ran by a kx1200.1 that does 1400 rms. Thanks.

http://www.audiojunkies.com/blog/551/world...ingle-subwoofer can this be confirmed ?