Radius is one-half of the diameter as shown in the following equation. Get help for the Speaker Box Designer Determine the Dimensions of your Speaker Box based on the Calculated Volume Determine if your Driver works best in a Sealed or Ported Enclosure Calculate the Displacement Volume for Your Driver Read the Speaker Box Design Tutorial Close. A lower Qtc will start to roll off earlier and will roll off at a slower rate.
Construction Monkey has the perfect calculator for you.
Construction Monkey has the perfect calculator for you. If you are using a slotted port select square under port type then answer yes under are you using a slotted port. The calculation of sealed bass-reflex bandpass boxes by Thiele-Small parameters. The volume equation shown here is used to calculate volume in cubic feet when height width and depth are measured in inches.