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SPL & SQ / Fabrication

Calculations, Concepts, Designs, Theories. All General SPL Or SQ Questions Can Be Discussed Here.

  1. Started by ExclusiveRA,

    P

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  2. Started by manbeer,

    seen it a couple of times during my visits to select products site. anyone try this stuff? i am trying to get a better idea of the result i would get with it. my car has this felty suede material in the center console and ashtray area. is it similar to that? i was thinking of using it to line the bottom of the amp rack and wanted to know if it is decent or i should just do real suede?

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  3. Anyone done a fiberglass build in a mazda 6 sedan? I have this idea of putting my 15" ssd in the center, behind the seats, with two 6" aeroports (one on each side of the sub). This would be firing into the cabin. I have my rear seats down 90% of the time, so I would imagine it would sound great. Anyone done it, or know how? I am looking for someone to take on this project for me, as I have never done it, and wouldnt quite say I have the time to do it either.. Anywho, im in Keller Tx and if anyone is interested I am willing to pay. Im looking to stay in the 3.5-4 cu ft. range, tuned at 33-35 hz. Im rocking a 08 mazda 6 sedan (not the cool hatch model). If you need anymore…

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  4. hey everyone, so, soon I will be getting a 1998 Jeep Grand Cherokee Laredo. I have the majority of my system ready to install. (please dont judge, i was not as educated when i bought this stuff) Rockford Fosgate P2 12" (2011 model) (it meh...), Rockford R500-1 amp (low efficiency, 58% @ 2 ohms) , Sony CDX-GT565UP (love it), and KnuKonceptz 4 gauge kit. right ow I have a crappy box to test with, its 1.72 cuft tuned to 31Hz via 4" aero. I will be building a 2-2.2 cuft box tuned to 32 once i am sure how i want the port and sub positioned. the current box i have the sub is on one side and the port on the other. so it will be easy to experiment how it will be positioned. my qu…

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  5. Started by Julian,

    is there any discernible difference between a square port and a circular port. I'm thinking about using a circular port tube from somewhere like Elemental designs. Mainly due in part to my lack of knowledge and how to build a ported enclosure.

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  6. Started by bayer,

    I have pretty much been out of the game since 2009 because I was happy with my last build and left it alone for about 5 years. I recently bought a 94 F-150 ext cab to DD and I need my tunes back. This truck is going to give me some headaches but I'm slowly getting there. I'm looking to put a 10" SSD in a center console box, sub down with a forward firing aero port to try and get everything to fit and not look too silly. I made some templates today and figure I have 18" height, 24" length and 12" width overall to work with. That includes lifting the box 2-3in off the floor for sub clearance. I've never used an aero before but have been doing some research and I think I des…

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  7. Started by chrismcdonald12,

    Finally picked up a few sheets of MDF to play with to make my explorer box, what should the minimum port area be for 2 15inch RE SX's? So far i have messed around with the RE box tool and came up with a 6.1 Cube box tuned to 34.7hz with a port area of 74square inches. My available measurements seem to be 41 inches wide(before wheel well bumps), 18 inches deep, and i don't want to reach over 20 inches high on the height. If anyone can throw some suggestions at me for the area of port needed or maybe a box design they have used in their explorer it would be much appreciated. Thanks!

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  8. Started by Trentin08,

    This is my first box design and I just wanted someone to check over it and make sure it's accurate. It's for a hdc3 18 on a bxi2010 in a 96 Blazer. The box specs are 37.5w, 21.5h, 21.5d, port width is 6", port length is 6", 6 cubes tuned at 36hz.. Thanks.

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  9. Started by jping2007,

    I have 4 sa-15s im needing a box for. They will be going in a 98 gmc jimmy. The dimensions I have to work with are 36wx22hx40d. I'd like to do subs up port back. oh and they;ll be on around 2000rms for the time being until i can get a saz3500. Thanks in advance

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  10. Started by alan412,

    I need help with a box design for a 15" Mach5Audio MAW sub. The recommended sealed box size for this sub is 62 litres (2.2 cu.ft.) 30hz tuning. I would like an enclosure designed exactly to these specs if possible. Thanks in advance!

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  11. Starting a new box build this weekend. I'm doing a slot port for this one. The box is 23" long with a 2.25" wide port. Need a 27" long port to tune. According to my math, the L section of the port needs to be 4" long. This assumes 2.25" from end of box to edge of long port length which I come up with 20.75. Taking center of port at 21.875 that leaves me with an L of 5.125 center. Subtracting back in 1.125 of center leaves me with 4". For end correction, I need to add back in 1.125 which brings me back to 5.125" L I've had a long week. Is my math correct? I don't design a lot of slot ports. Thanks! Dave

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  12. Started by sick1166,

    15"sa sundown d2 on 1200 watts All the sites for box sizes and calculators I just cant seem to come up with the proper size port and so forth I have all the room I need but everything says I need a bigger box with that 1200 watts running 1 15" any ideas or help sizing, thanks my 1 size was 33 x19x 17 3.5" port width 11 1/4" by 15.5" 3.7 cubes @ 32hz looking to stay around 32hz any help on proper box size is appreciated

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  13. Started by hondakilla98,

    I have an old sub box that came with an RE SX15 I bought used. It is 3.1 cu ft net before driver displacement. It has 2-3" aero ports in it. 9" long. I used it before with the sx15 wired at 2 ohms on my saz-1500d. I never heard any port noise, but it didn't sound great. I later built a 4.25 net cu ft box for the RE tuned to 30 hz. It sounds great. Well I think I have a buyer for the RE and was wondering if an SA15 would work in the old box. It's about the right volume and tuning would be right about 35hz(recommended) but it's seriously low on port volume. I was also thinking I could put a third port in it for burps and bump tuning from 35-45hz. Not to mention increasing …

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  14. 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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  15. Started by kryptonitewhite,

    VanEQWizard Background noise floor fluctuates from 65dB to 78dB... pretty bad when nothing is playing! I can read these pics off PC but not from the threads so: 5.22% 300Hz sounded so much louder than 200Hz yet it was so much quieter... that is why KW likes a U shaped FR curve, more and more exaggerated as you get further from the middle 1.97% 1.97% 1.42% .844% .937% .253 .235 .235 .402 .217 .576 .229 .270 .259 .376 .208 .672 idk what happened .0343 IDKY but dist stopped showing here. I was clicking it though. couldnt even hear 18,000 so i stopped after it

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  16. Ok ppl I will be making a ported box for my subs, my external dimme. are 38" wide by 14" height and 17" in depth,, My question is, I will like to tune it to 35hz or a bit lower are these dimme ok ? my subs are HX2 12 "punch series dvc 4 ohms will this be ok ??? in order to be on the right step...... ok at this time I'm using bass box pro 6, I'm trying to get the hang out of it ok anybody correct me if I'm wrong ,vent side will be 12.5 height + 12.25 long and 2 inch from side wall (26.75 sq inch port) tuned to almost 35 ........

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  17. Started by coreycgarner,

    Anyone have the meca world finals results? Just curious on how our shop vehicles would compare..

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  18. Started by mmatscrx,

    As it says above. I dont plan on taking 2nd again this year. i will post pic. soon. somethings involved are a credit card that is pretty close to maxed out at the moment to add alot MORE POWER and maybe more subs just have to wait and see

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  19. Started by ShaneSauce,

    I was looking at the 4" flared port tubes. I don't know too much about them but how do you find tuning for your box with them? And how much do they displace?

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  20. Started by Marlin15s,

    Does anyone know what the tuning is of the dual X15 box sundown recomends? And how many cubic ft it is?

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  21. Started by snhtown,

    Hey i need help with my box build. I have a 03 Solara, 2 L7's and im powering them with a eclispe DA7232. so the first box i built, 5.0 cf with kickers recomended port didnt fit and i am now learning the pains of severe disapointment! so now that i progressed from building simple sealed boxes to ported and f.g. enclousers i am stuck at fitting them in a trunk where they wont physicaly fit. So would someone who has mastered this process please help this newbe who just wants to have some good sounds to go along with these badass subs, Or even beter someone who has a solara and a simular setup. I would like to use the area under the rear deck for the encloser and using …

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  22. Started by Cdieselfan,

    Have this started on a couple other sites. Been out for awile (5-6yrs). Wanting to get back into comps. I already have 6 MA HK4000ds and a VW Golf hatchback. Also have a buddy selling a couple Americanbass VFL400.1s for a good price. Would prefer to stick with the MAs because I have them. Looking to do 2-15s in a wall. Prefer the street class to save $$$. Have about $3500 to spend. Also what would be some good sub options. I used to run some Apxx's and have seen several motors forsale. Also the RDs I have seen do really well.

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  23. New JBL W12GTi MKII waiting for a home. Need to do sealed as space is limited but plenty to work with for a proper enclosure. Looking for it to attack the lows and have a flat(ish) response. Not a ground pounder, rather a SQ build for this old man.

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  24. Started by TEARfromRED,

    looking to make a sealed enclosure for a 10" Infinity Kappa Perfect DVQ. the sub will be getting 400rms, just trying to get some confirmation on the dimensions of the box i should make based on my reading I should be looking for a box with about .8 cubic feet and using the mid-size insert. this look correct to everyone?

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  25. Started by the727kid,

    My buddy wanted to go from 2 12s to 1 12 in a sealed so I built him a box for free and he gave some cheapo 12" sub as a thanks. I would like to build a 4th order since I never have and see how loud I can get this guy for shits and giggles. Problem is I don't know where to start on designing one.

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