need box help!!!

[Liquid Bass 10+ year member]

ok i am fairly new to car audio and have been asking around about a sub to buy on other forums for a while, and i just recieved a mach5audio MJ-18.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif , now i need to build a box for it.....and its going in a chevy silverado ext cab truck, and cant be more than 45 in. long and 18 in. deep, but the hight doesnt matter just as long as it doesnt block my back window, this is a site that somone told me to make a box on but i dont know what it all really means so if somone could put all this stuff in and creat it for me it would be great and then just post the link, thanks.

http://subwoofertools.com/forum/ported-box.asp

Click to read more...

 

[Streetbeatz01 10+ year member]

ok i am fairly new to car audio and have been asking around about a sub to buy on other forums for a while, and i just recieved a mach5audio MJ-18.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif , now i need to build a box for it.....and its going in a chevy silverado ext cab truck, and cant be more than 45 in. long and 18 in. deep, but the hight doesnt matter just as long as it doesnt block my back window, this is a site that somone told me to make a box on but i dont know what it all really means so if somone could put all this stuff in and creat it for me it would be great and then just post the link, thanks.
http://subwoofertools.com/forum/ported-box.asp

Hey man I put this together and you just have to build it.

Net Volume: 4.5 cubic feet

Tuning Frequency: 30 Hz

Port Width: 3 inches

Port Area: 52.5 Square Inches

Port Length: 29 inches

External Dimensions: 40.5 wide x 19 tall x 16 deep.

Board Dimensions and Quantity

Color Count Width Height

Top and Bottom 2 40.5 inches 16 inches

Red 1 36.75 inches 17.5 inches

Yellow 1 15.25 inches 17.5 inches

Black 1 39 inches 17.5 inches

Green 1 16 inches 17.5 inches

Teal 1 11.5 inches 17.5 inches

Violet 1 13 inches 17.5 inches

Number of 49x97 Sheets of 3/4" MDF: 0.75

 

[Liquid Bass 10+ year member]

ok thanks for your help but what is the displacement of it in cubic feat?

 

[Kold_Killa 10+ year member]

Edit...

 

[Liquid Bass 10+ year member]

anyone????

 

[jeremiah 10+ year member]

ok thanks for your help but what is the displacement of it in cubic feat?

? what like the driver displacement? if so it's 0.43

http://subwoofertools.com/forum/ported-box.asp?Ew=40&Eh=20&Dia=11&Xmax=12&Vd=0.43&NumW=1&Vb=4.5&Fb=30&Qts=&Vas=&Fs=&CE=0

 

[cotjones V2]

edit