How large should a box for 2 Skar VVX-12s be?

[tf3090]

Assuming they are receiving 400 watts a piece, and the box will be tuned to 33 hz, how large should a box be for 2 Skar VVX-12s? I emailed Kevin and he said 3.6 cubic feet after displacement. Would that be about right?

[splwj47]

sounds rite

[cyn]

I would go around 2cubes each after displacement... an i would try a lower tune... like 30 or 29hz

[tf3090]

Does that include displacement of the subs (.15 cubic feet each)

Here is the box Kevin designed

Width : 32
Depth : 19
Height : 14.5"

tuned to 30hz, is 3.6 cubic feet after displacement (including the ~.3 cubic feet displacement of the subwoofers)

If I'm running 800 watts @ 2 ohms (400 watts to each sub) would it be better to make it slightly bigger at ~3.8 cubic feet?

[cyn]

displacement is .18 from the site anyway

I would go bigger at like 4cubes or so maybe 4.4cubes before sub displacement

[IonRL205]

Skars love the lows. I'd tune lower if it were me. I'm going to be tuning 28 to 30 hz when I get my 10s

[tf3090]

Even lower than 30hz?
Also, I'm seeing if I can increase the depth a little bit to get to 4 cubic feet and I will see what happens

edit: okay here are the new box specs

Width : 32"
Depth : 21.5"
Height : 14.5"
Tuned to 30hz

Would that be 4.0 cubic feet after displacement of port+subs? I think that sounds good right there

[FlexnInLa]

I'd go with Kevin's suggestion, or better yet talk to Mobile Enclosures and get something designed for exactly what YOU want out of the subs

[tf3090]

Well, the dimensions for 4 cubic feet after displacement is what Kevin came up with. I'll probably go with that and pay today, is that the one I should be going with over the 3.6 cubic foot box? Keep in mind I only have 400 watts to each sub

[DoesDad]

You're going to run more power to them in the future though right?

[cyn]

i know i built mine to spec for one and it wants more space easy and lower mine is tuned at 34hz i would go 30hz or lower
ive ran mine at 150, 300, 500, 700, 1k watts and it sounds good on any of that

[chillin]

I had my box shipped from kevin, and it is 2.09cube for 1 12". That is the entire box, after displacement of sub and port, i'm not sure what it would be, but probably close to 1.7 or 1.8 (same as yours would be). I asked him to tune it to 30 and it sounds great. They are Kevin's subs. I would trust what he says and as suggested above, if you want a second opinion ask a good box designer such as mobile or ram.

[pro-rabbit]

Why does everyone insist on tuning low? That is not always the answer to getting the desired output. Even if it is lows. Application plays a massive roll in tuning and sub/port placement.