is it better to make a box with or without sub displacement?

[waggs 10+ year member]

I just worked with your dimentions,
you can get 2.1 cu/ft @ 34 Hz with the following:

Slot Vent Width: 2.00 inches

Wood Thickness: 0.75 inches

Driver Displacment: 0.18 cu/ft

Number of Drivers: 1.00 qty

Width= 21.00 inches

Height= 14.00 inches

Depth= 21.00 inches

Port Length= 23.63 inches

Driver Volume= 2.10 cu/ft

Port Area= 25.00 sq/in

ygpm

 

[rpfuror 10+ year member]

Per your request, here is a 3d drawing:

 

[waggs 10+ year member]

Per your request, here is a 3d drawing:

thanks looks good. btw, how long are the 2 port pieces?

 

[rpfuror 10+ year member]

17.50" x 12.50" first

2.0" x 12.5" second