SPL & SQ / Fabrication

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.

I have a 4 cubic foot box that i would like to install two 4" pvc ports in... How do i go about figuring it out?

i need help in making a ported box for a re xxx 12" v4 for a vauxhall astra sxi 52 plate could any one please help me

I would like to go with two jl audio 13 tw5 or two re audio sl12 http://www.audiojunkies.com/blog/646/res-n...nclosed-woofers http://mobile.jlaudio.com/products_subs_pa...php?page_id=245

My db drag partners ride this season 4- AUDIOPULSE 15'S, WALL 8- AMPS STRAPPED, 20,800 WATTS RMS 8- BATTERIES 2- ALTERNATORS= 510 AMPERS AND 300 INCHES OF PORT -Each amp at .5 ohms just like my sundowns (same wiring on the dual amp single woofer strap) -156 legal (156.4 later that night) with three out of 4 of the 15's on -amps have not been matched perfectly yet -woofers have not all broken in -wall still has not been sealed off -no deadening yet -batteries were uncharged

I am working on my plans for my box and would it be acceptable to cut a hole for a round port and have the port extrude from the box some distance? The Box is 3.5 cubes or so tuning to i hope 32 Hz for a 15. Could it be outside to get more airspace?

Alright, I am wanting to wait till i get a new vehicle to do a wall. (Still debating). I'd like to use two fifteens in my trunk, Thinking either AudioQue HDC3's, Fi BL's, or maybe some DC Level 4 XL's. A local shop said sealing a trunk on GM cars sounds like crap; Is this true? This would be the plan for my box Would this cause an audible noise or necessarily sound bad? I know it's install dependent but how do sealed trunks like THORSHAMMER's sound?

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

Looking to hear peoples experience with this set of components. Can't hear them but want to know how they sound for sq.

I recently bought 2 RE AUDIO SXX 12" woofers and plan to build the enclosure (vented) by myself (first time in my life). Since the manufactorer's web site only provides a box calculator for one woofer, can somebody kindly give me some advice on dual woofer enclosure and port measurement? In order for the box to fit in the trunck, the size constraints are: Length < 35", Height < 16.5". I prefer SQ over SPL and hope the bass hit as hard as they can. Thanks so much! The T/S parameters are listed below and more info. can be found on http://www.reaudio.com/woofers.php#goto_sxx Qes: 0.32 (Electrical Q value) Qms: 4.4 (Mechanical Q value) Qts: 0.30 (Total Speaker Q value)…

due to the complexity of the sides of my box, its going to be kind of hard to build a slot port on the top of the box. i was thinking, instead of a slot port, should i do like 4 6" aero's? (or whatever i need to get the right amount of port area) which leads me to my questions. -if you have 200 (example) sq in of port area, with a slot port, if you switch to aeros, do you still need a ton of aero's to get 200 sq in? or does less aeros equal out to the larger port area of a slot port? -aero ports in a wall. how will this work? i know one con is i dont get the natural bracing a slot port would provide, but ill deal with that, and add some extra bracing. -difference in sound…

I started my base mold about a week ago, and popped it out after the second layer. Right now im on my fourth layer for the base, and it seems to be getting really stiff. Probably going to end up doing 2 more layers. I have a question though, does fiberglassing polyiester rope to the inside of the box help stiffen it up? i thought I read about that on here but im not sure.

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

Hi everyone, My name is Paul Mocan, and i am from Cluj-Napoca, Romania. Adrian_D is a good friend of mine, and one day we decided to transform my 20 year old Volvo 340, in a SPL car... here is what happend. We started with adding a second battery behind the passanger seet, and complettly removed the rear seats. We made a box design with 2 ports, one for SPL and one for music. My car was a wreck. I had oil and watter dripping out of it, but it was a crowd gatherer. I'll come back with some pictures...

I just finished my box for my fi btl and now I'm looking for something to cover it but not sure what yet. I've looked at CF and Carpet together (having the entire box black carpet with the fi bomb sticker as a cutout with CF over top) and thought about bed liner but I've never tired either and I'm not sue what would be the best look and if there are any more ideas out there throw them at me in open to anything.

Hello, this weekend I hope to construct a center console for my truck. The vehicle is a 99 ram 1500 quad cab The box will take place of the center bottom seat cushion, allowing the top flip up portion to still be utilized as storage. The box will house 2 FI Q10 D2 subs with everything but high qts option The box dimensions are H:10" W:15" L:30" Box material will be 1/2 birch ply home depot project panels Box gross volume is 2.11 Port will be precision port dimpled inner + outer flare 4" diameter 24 inches long for a net volume of 1.67 cuft and port tuning frequency of 27.43Hz according to torres. Box will have flame kissed woodgrain with a very dark cherry stain and s…

Alright, so on my quest to get louder out of my trunk, I'm trying to really understand enclosure designs, and how different enclosure sizes effect response, output and other factors. Now I know the general basics, larger enclosures will be more efficient, smaller enclosures less efficient. But I guess I'm looking for some more in-depth information.

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

Hi there, hope it s not too early to start asking for help. I've got 2 RE XXX v3 18s but running only 1 @ the moment cause there is no room for 2 so I m getting them resized to 15s. Could somebody please help me with the design of a enclosure for 2 RE XXX v3 15s??? external measurement would have to be max. W 36 H 24 D 28 Dropping low but musical ... Thank u in advance, Andre

Just picked up a SA-8 v.2 and I need some help designing a box. Every design I find is for 2 subs, but I'm only going to be running one. This will be in a trunk car and powered by a DSC1500.1D. Maximum dimensions are 14" H x 36" W x 18" D

not for sure where or when this happened, james herren sent it to my phone, hence the crappy quality. anyway, figured it would be good for some laughs. and yep, it's a 172.2db run. wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Like the topic says. Does anyone know how accurate the numbers are? Port Length Calculator Thanks

Hi my name is Bosco Ruiz....and i bought 2 TEAM RF 12"...nowadays i dont have a box for those subs.....i need ur help I have a RAV4 2006 and the dimensions inside are. High 38" depth 32" width 34" do u have a picture of box for those subs?? what dimensions would be for my subs??

I need help with designing an aero port enclosure. This is my first attempt. I am looking for 2.5 net and tuning 32hz, With corner bracing. I would appreciate all help I can get! Thanks.

Hey guys, so my dad really wants an Image Dynamics 12 for Father's Day and I want to build him a box for it. It's going in a Honda CRX, and I want to try and load it off the rear hatch. I just need a simple sealed design and cut sheet. He's got 35"s between the two shock mount plastic panels and 28" from the open storage box to the back so space isn't an issue whatsoever, especially for a sealed box. Only thing important is that I want it fairly close to the 35" across so I can mount it right behind the storage tray angled back to the hatch class. Any help? Thanks a lot guys, and here are all parameters you might need http://www.imagedynamicsusa.net/files/59633398.pdf