Joe X

I wouldn't mind a assembly guide! I'm really new to box building! Thanks man! Updated my original post with the assembly guide, let me know any questions.

Do you have any maximum dimensions for the box?

Ok so, here is a design suggestion based closely on Kicker's spec for this subwoofer: 10cuft@35Hz port up sub up configuration will work well and is very easy to build: DIMENSIONS ARE SPECIFIED AS SEEN FROM THE TOP!! Enclosure Specifications: Fb = 35,00 Hz Vb = 10 ft^3 Subwoofer Mounting = Flush Mounted External Height = 19 in External Width = 39 in External Depth = 32,75 in Port Width = 8 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Front & Back (3 parts) = 39 x 19 Left & Right Sides = 30 1/2 x 17 1/2 Top & Bottom = 39 x 30 1/2 L Port Internal Assembly Parts: Front to Back = 15 1/2 x 17 1/2 Bracing displacement considered are two wood rods 2 inch diameter 17 1/2 tall for front to back bracing. Also double baffle has been considered. Driver displacement as specified by Kicker is = 239.8 cubic inches. Let me know if you need to see an assembly guide. Edit: Just a quick idea of how things go:

DC Audio L3 10" 1 cuft ported 600WRMS a piece. Obviously it depends on what you want them for.

This is the DC Audio spec for your sub: http://www.dcsoundlab.com/level2.html Here is a design suggestion based on DC Audio spec and your tuning range and max dims: Enclosure Specifications: Fb = 35,025 Hz Vb = 1,309 ft^3 Subwoofer Mounting = Flush Mounted External Height = 15 in External Width = 22,5 in External Depth = 14 in Port Width = 1 1/2 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: Front = 20 1/4 x 13 1/2 Front Internal = 19 1/2 x 13 1/2 Back = 22 1/2 x 13 1/2 Left & Right Sides: Side 1 = 12 1/2 x 13 1/2 Side 2 = 11 3/4 x 13 1/2 Top & Bottom = 22 1/2 x 14 L Port Internal Assembly Parts: Front to Back = 11 x 13 1/2 Extension = 15 1/2 x 13 1/2 Here's an assembly guide: You can try it front firing or rear firing to see which you like best. Some people feel the double baffle is not necessary. If you don't want the extra effort I can take it away.

Vas belongs to the subwoofer, you use Vas for designing the box, I calculated it from the other parameters but better measure it. Also left you a link with 2 independent methods to measure Vas.

Any tuning in mind?

And in case you didn't read up there you are missing Vas. Calculated Vas for you but the best way is measure it, and the device suggested can't do it.

They used to list them, found them in two different loactions around the internet: XL 12" Mounting Depth 7" Mounting Hole Diameter 11" Motor Width 8.75" Weight 54lbs VC Diameter 3" Flat 8 layer Displacement .19³ ft Magnet Weight 50lbs Power Handling RMS/Peak 1500/3000 Impedance (Ohm) d.7, d1, d1.4, d2 Sd 494.00 cm² Fs 38.90Hz Qms 6.51 Qes .31 Qts .29 Xmax 26mm Sensitivity 90.73 Suggested Sealed N/A Suggested Ported 1.5³ ft Vas can be "calculated" by formulas and it gave me: 1.456 cu.ft If not here's how measure Vas (and the other parameters): http://sound.westhost.com/tsp.htm

They do give an enclosure suggestion (Vb) AND.. you can always measure the t/s!!

the f3 he is talking about it dependent on the enclosure, not the sub. At least depends on the sub, the enclosure and the cabin. Well at least the actual f3 that he would be getting.

There's no T/S parameters listed for the DC Audio XL.. I guess I wouldn't worry about that on any well designed 4th though.

Should look like this:

Seriously you need this designed? This drivers optimize according to RF at 1.6 cuft each so Vb = 3.2 cuft. Each driver has a displacement of 0.107 cuft so total displacement is = 0.214 cuft Enclosure Specifications: Vb = 3,3 ft^3 Subwoofer Mounting = Flush Mounted External Height = 17 in External Width = 36 in External Depth = 13,5 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Front & Back (3 parts) = 36 x 17 Left & Right Sides = 11 1/4 x 15 1/2 Top & Bottom = 36 x 11 1/4 The extra 0.1 cubic feet you can use for some crossbracing you may want to do (front to back). There is a double layer baffle which also acts like bracing.

Based on Kicker specification (checked to be as you list above) here is a design suggestion, the size of the port parts are included: Enclosure Specifications: Fb = 39,807 Hz Vb = 2,5 ft^3 Subwoofer Mounting = Front Mounted External Height = 14,75 in External Width = 27,37 in External Depth = 16 in Port Width = 2 1/2 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: Front & Back = 27 3/8 x 14 3/4 Left & Right Sides = 14 1/2 x 13 1/4 Top & Bottom = 27 3/8 x 14 1/2 L Port Internal Assembly Parts: Front to Back = 12 x 13 1/4 Extension = 1/2 x 13 1/4

The kicker will work but for $350 maybe there is a catch.

Use MDF screws. You may like this: http://www.norbord.com/images/screws-MDF.pdf

Yes, if you can afford 0.75 in mor in depth I could modify the design to give you a double baffle which is a very good way to avoid resonance, if not you can consider some front to back crossbracing.

Ok ports should not be together check this out:

I fixed the assembly diagram, unless you have more space this configuration is the most space efficient for a ported enclosure (except if you wanted to go with aero ports). Dual ports or dual chamber and port will take up more space. A band pass will be louder but it will need to be much bigger than that. The main difference vs. the one suggested by the manufacturer is that it tunes lower giving better bottom end.

Ok Here is a design suggestion, a bit more net volume and tuned lower will help reach the lower notes better: Enclosure Specifications: Fb = 32,186 Hz Vb = 2,821 ft^3 Subwoofer Mounting = Front Mounted External Height = 14 in External Width = 34,5 in External Depth = 17 in Port Width = 3 in Cut List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: Front = 30 3/4 x 12 1/2 Back = 34 1/2 x 12 1/2 Left & Right Sides: Side 1 = 16 1/4 x 12 1/2 Side 2 = 15 1/2 x 12 1/2 Top & Bottom = 34 1/2 x 17 L Port Internal Assembly Parts: Front to Back = 12 1/2 x 12 1/2 Extension = 11 x 12 1/2 Asssembly guide:

If you are doubling the airspace you need to put a second port that is *identical* to the one previously used, if you want a single port you have double the area and recalculate the port length to the tuning of the previous one. Also the last time I checked the RE calculator had obvious flaws, work with the Torres claculator wich is free and is more accurate.

Audioque has different series of subs what is the exact model of the subs.

What are your maximum dims?

Well, if you are right then 40/2.5 = 16, the maximum for slots, 13 is the maximum for aeros so 2.5 x 13 = 32.5. If you are willing to compromise a single 6 aero will do for one sub so two ports for 2 subs would be minimum. which leads to 45.9 in long each to get to 34Hz! A slot port based design would be better for this design. if you have the space.