What is the Formula for cone area on a subwoofer?

The formula for the cone area of a subwoofer is given by the equation ( A = \pi r^2 ), where ( A ) is the area and ( r ) is the radius of the cone. To find the radius, you can divide the diameter of the subwoofer by 2. This area is important for determining the subwoofer's efficiency and performance in producing bass frequencies.