DC level 3 12" box design help Joe X

[oldsoundguy]

I have been playing with the torres box build for this box and it seems ok but I wanted your advise. DC recommends 1.25 net and not bigger than 1.50 
I will be running it off 1200w

The box should not be more than 23 long 14.5 deep  height can be what it needs to be. Thank you

		9.5"
Mounting Hole Diameter		11"
Outside Driver Diameter		12.5"
Motor Width		7"
Weight		20.5lbs
VC Diameter		3"
Displacement		.16³ ft
Magnet Weight		18lbs
Power Handling RMS/Peak		900 / 1800
Impedance (Ohm)		D1/D2/D4
Sd		481cm²
Vas		28.99 liters
Cms		0.09 mm/N
Mms		225 g
Fs		35.4
BL		17.2 N/A
Re		3.6 Ohm
Le		3.5 mH
Qms		8.33
Qes		0.617
Qts		0.574
Xmax		23 mm
Ref SPL @ 1 watt		85 dB ([email protected])
Suggested Sealed		1³ ft
Suggested Ported		1.25³ ft

[Joe X]

If you don't want to be peaky the 1.25-1.5 net range is fine, raw port area of 25 square inches should be enough in that box size range and 1200W of power with a mid 30s tuning. Anyways, if you want a little more box efficiency and get slightly peaky 1.75 net would work well. Any issues with a current box you are looking to replace?

[oldsoundguy]

Not replacing a box I am going from a M3-8 to the level 3 12.
Any chance you could do a design? Thank you Joe

I would like to stay in the 1.25-1.50 range. Again the depth of the box is 14.5 the length is 22 and height can be what it needs to be.

Thanks

Torres is giving me trouble. Hard to get everything to line up.

[Joe X]

Ok if you just want me to lay out something 1.5 net for that sub then there it is below, it's made with the same aimings as the box in your profile, figure is just an assembly guide:

 

 

[oldsoundguy]

Thank you Joe. 

[oldsoundguy]

Just an update, I built the box that Joe designed for me and it sounds real good. Here are some pics of the build. Thanks again Joe

[Triticum Agricolam]

That looks really nice!  Good job. 

[Joe X]

Thanks for the pics oldsoundguy, that's great build quality! Glad it went well for you.