Now calculate the internal volume of the enclosure in Figure D by using the volume equation. Multiply volume of the container by the number of times you had to fill it to calculate the enclosures volume - Example-4 Find and subtract woofer displacement and port displacement. A lower Qtc will start to roll off earlier and will roll off at a slower rate.
What the heck is the difference.
Calculate for Box Enclosure Tuning Frequency. This will give you net box volume. In this section there are three main components. Easy and convenient build your box.