Joe X

As long as the manufacturer states a spec for ported, you can do ported and your deep bass will improve a lot.. a no go for example is using IB subwoofers in a box, you would need a gigantic box to ave them perform as intended.

Very similar to the above but on your dims: Enclosure Specifications: Fb = 34.045 Hz Vb = 3.825 ft^3 Subwoofer Mounting = Flush Mounted External Height = 17 in External Width = 36.18 in External Depth = 20 in Port Width = 4 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Top & Bottom (3 parts) = 36 3/16 x 20 Left & Right Sides = 18 1/2 x 14 3/4 Front & Back = 36 3/16 x 14 3/4 L Port Internal Assembly Parts: Front to Back = 14 1/2 x 14 3/4 Extension = 7 1/2 x 14 3/4 The driver displacement displayed above is low. 0.05 cu.ft. bracing displacement is accounted for.

Modified my original post, now a pic is shown.

The design I left you is identical to Loslam's design except that the port is tuned to 35 Hz as you requested.

Ok so here is a suggestion, can be modified to your likings, port up/subs up: Enclosure Specifications: Fb = 35 Hz Vb = 4.16 ft^3 External Height = 20 in External Width = 41.75 in External Depth = 14 in Port Width = 5 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Top & Bottom (3 parts) = 41 3/4 x 14 Left & Right Sides = 12 1/2 x 17 3/4 Front & Back = 41 3/4 x 17 3/4 L Port Internal Assembly Parts: Front to Back = 12 3/4 x 12 1/2 Extension = 4 x 12 1/2 Llet me know any questions.

Well, this is preliminar, sub flush mounted to the front, slot port up on a side: Enclosure Specifications: Fb = 35.062 Hz Vb = 5.853 ft^3 Subwoofer Mounting = Flush Mounted External Height = 30 in External Width = 30 in External Depth = 18 in Port Width = 5 1/2 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Front & Back (3 parts) = 30 x 30 Left & Right Sides = 15 3/4 x 28 1/2 Top & Bottom = 30 x 15 3/4 L Port Internal Assembly Parts: Front to Back = 21 1/4 x 15 3/4 Other options can be explored, like aero ports, some brancing is necessary mainly front to back, let me know any questions and if you would need a pic of the design.

Post the max dims, exact model of the subs, Vehicle model, and tyoe of music you listen to, and I will provide a cut sheet list or ask you some other questions if necessary.

Post your maximum dims, port up sub up can work if you have something like 19" D.

Ok. use MDF screws and high quality wood glue, (like Titebond) to do the assembly, if you do an extremly solid build there won't be any issues at all, Also it will be stronger if don't do the flush mount.

In the design post I left you data for both assembly methods for the 32Hz enclosure, The port is identical since the design is not changed just the assembly method, be aware that you need to cut the port through the baffles, not many can do it right, the same goes for flush mounts.. if you have acces to a router then you will get it right. If you need some sketchup of the alternative assembly method let me know.

That is a single port on the side, and takes very little internal volume, I'd like to have some more depth if that's possible.

its no more deadly than a wall. as long as its got a solid foundation and is secure, there shouldnt be any issue. A wall could be pretty deadly, I have not heard yet about crash tests on vehicles with walls yet though.

I guess you are not factoring in displacements, check this suggestion, is not final or anything, just for you check, also this subs are recommended for up to 33Hz tuning, you barely have the space for them, port/subs front firing: Enclosure Specifications: Fb = 33.8 Hz Vb = 12.628 ft^3 External Height = 28 in External Width = 54 in External Depth = 22.25 in Port Width = 8 1/8 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: Front = 45 1/8 x 26 1/2 Front Internal = 43 5/8 x 26 1/2 Back = 54 x 26 1/2 Left & Right Sides: Side 1 = 20 3/4 x 26 1/2 Side 2 = 21 1/2 x 26 1/2 Top & Bottom = 54 x 22 1/4 L Port Internal Assembly Parts: Front to Back = 12 5/8 x 26 1/2 Extension = 2 x 26 1/2

I would try for less deadly alternatives if feasible first, also what car are you placing this in?

Just gather some extra opinions as most dims will change, tuning is usually set higher with HDC3 subs but thay doesn't mean that will be best for you, regarding the materials, it all depends on how is cut so plan your cuts on paper since you already have a cutlist or maybe let the guys selling the material help.

So here is a suggestion: Enclosure Specifications: Fb = 34.6 Hz Vb = 4.5 ft^3 External Height = 13 in External Width = 39.25 in External Depth = 29.25 in Port Width = 5 1/2 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: Front = 33 x 11 1/2 Front Internal = 31 1/2 x 11 1/2 Back = 39 1/4 x 11 1/2 Left & Right Sides: Side 1 = 27 3/4 x 11 1/2 Side 2 = 28 1/2 x 11 1/2 Top & Bottom = 39 1/4 x 29 1/4 L Port Internal Assembly Parts: Front to Back = 21 1/4 x 11 1/2 This is how it assembles: Use this as is or use the Torres calculator and this to make your own design.

As before, the pic I left on the design post is only meant to help you understand how to assemble the box, the assembly style I used will be the easiest to build since the port does not need to be cut through the baffle, I edited the design post to add an alternative assembly style. As long as the sub and the port do not significantly obstruct each other in some way you are ok, you can place as many 45s as you deem necessary as long the total displacement of bracing is small. I'd rather call your attention at the tuning of the box, you may not have as much output as possible with a lower than recommended tuning, maybe ask around a bit about that.

You got it, I was wondering what amp are you going to use?

You shrink the box , you loose bass despite the tuning frequency being the same for all 3 boxes.

This a port turn wiith optimizations:

If you want to optimize you can round the inner corner at the port turn and add a 45 there to reduce turbulence. You can do low displacement crossbracing top to bottom and front to back, and add other 45s where you deem necessary. If you want to do some major bracing let me know to account for it. The picture you see is only there to help you understand how the parts assemble so doesn't show particular details nor actual dimensions. If you really think you need a more detailed model let me know.

Is not designed in I guess because there are many port styles and many methods to calculate, I include that extra info on my suggestions so people can just go and cut the parts. I can do it only on a limited number of port styles though.

Ok here is a quick suggestion 32Hz seems too low for that sub (35-38 is usually used): Enclosure Specifications: Fb = 32 Hz Vb = 6.017 ft^3 Subwoofer Mounting = Flush Mounted External Height = 22 in External Width = 31.75 in External Depth = 26 in Port Width = 5 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: Front = 26 x 20 1/2 Front Internal = 24 1/2 x 20 1/2 Back = 31 3/4 x 20 1/2 Left & Right Sides: Side 1 = 24 1/2 x 20 1/2 Side 2 = 25 1/4 x 20 1/2 Top & Bottom = 31 3/4 x 26 L Port Internal Assembly Parts: Front to Back = 19 1/2 x 20 1/2 Extension = 8 x 20 1/2 Kind of crazy to build fast like this. Let me know any quesions. EDIT: Here is an alternative assembly style for the box, full height/full length baffle: External Enclosure Parts: 2 x Front & Back (3 parts) = 39 1/4 x 17 Left & Right Sides = 15 3/4 x 15 1/2 Top & Bottom = 39 1/4 x 15 3/4

Inverted Oh ok, still too much port. What subs? What happens when there is too much port? That's why I'm building this, just to see what happens. Two Polk MM10" Will the subs bottom out? Blow? Only play highs? I have no idea. If you just want to do some tests why not using an aero port, yu can change sizes and lengths.

Ok here is a suggestion port up/sub forward: Enclosure Specifications: Fb = 32.026 Hz Vb = 3.494 ft^3 Subwoofer Mounting = Flush Mounted External Height = 22 in External Width = 42.5 in External Depth = 12 in Port Width = 5 1/2 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Front & Back (3 parts) = 42 1/2 x 22 Left & Right Sides = 9 3/4 x 20 1/2 Top & Bottom = 42 1/2 x 9 3/4 L Port Internal Assembly Parts: Top to Bottom = 15 x 5 1/2 Extension = 9 1/2 x 5 1/2 The port width alone is not relevant, but the port area, to know what is the correct port area, divide your suggested port area (in cubic inches) by the net internal volume (in cubic feet) of the box, the result should be between 12-16 in most cases. Let me know any questions. Edit: Try the Torres box calculator if you want to explore options and make calculations easier.