EXO Needs YOU! 18" Subwoofer Enclosure Design - Ascendant Audio Mayhem

[Torres]

Hmmm. I disagree - I'd wall for 1 or 2 - but not for 4 -

When you have that much cone area with 4 18's the massive airspace isn't an issue anymore because they move the air like nuthin

1 or 2 18's has a harder time movin that same amout of air - Therefore I'd rather just decrease the actual airspace , so I can bang louder.

anytime you cut down the volume you need to pressurize, you'll see improvement. 4 18's in a wall would be better than two 18's (given both boxes are equal) because you have that much more cone area pressurizing the same space as 2 18's. like you said, the 2 18's have a harder time moving the same amount of air, but with both both setups in a wall the 2 18's would still have a harder time moving the same amount of air as the 4 18's

[EXOcontralto]

Vehicle - Grand caravan completely emptied out, you have the world to work with back there.

Max dimentions - 40inches wheel to wheel - 30 inches front to back - 47 inches floor to ceiling

I'd like a box tuned low to around 30 to 32 hz

I have 200m alt with a 3000w amp - Soon to be RD or AQ

Subwoofer - Ascendant Mayhem 18

Fs - 33.7

Qms - 6.52

Qes - 0.29

Mms - 307g

Sd - 1210cm^2

Vas - 148.9l

SPL - 94.8

Bl - 17.7

Xmax - 30mm one way

RMS - 2500w

Qts - 0.28

ported enclorsure - 5to8c cf

mouting depth - 10.75in

driver cutout dia. - 16.750

driver overall dia - 18.500

driver displacement - 0.26 cf

I hope this covers it, if not let me know.

[Syko DJ]

why not take the design that the kid did for you and put a peice of wood in between the two spots for the subs and the port making it 2 seperate chambers one for each sub that way in the future when you do get another sub you wont have to change anything

[EXOcontralto]

why not take the design that the kid did for you and put a peice of wood in between the two spots for the subs and the port making it 2 seperate chambers one for each sub that way in the future when you do get another sub you wont have to change anything

You know what Syko - you just may have something there -

[bkolfo4]

Have not been around the computer.

That box has a divider in it making it where it can be used with only 1 sub. Build half of it if you only want half right now. . .

[Red-navi-916]

i think id tune it to 35hz thats just me

[Syko DJ]

You know what Syko - you just may have something there -

it might mess with the tunning a little bit but it should still be in the same ball park for each chamber

[EXOcontralto]

it might mess with the tunning a little bit but it should still be in the same ball park for each chamber

Enclosure

What do you Guys Think? Should I build a box for 12 18's instead of 1 - that way i can upgrade easily?

[Bunker]

Here lets do it this way. Have you ever used a router before, and cut cardboard templates before, if so all we would have to do is design the box and after you have your front piece in and sealed off. Just build a frame out of 2x4 to the height you want the sub to be at then bolt the 2x4 frame to your van and bolt the box to the 2x4 frame. Then make you back piece seal it off just like the front and there is your wall. None of this may make any since but if I was at your house or you were here I could show you what I'm talking about. I visualize the design in my head first then go to paper.

[Syko DJ]

i'd say if you want to wall it go for it a box would be easier but a wall would look bad ass in that van