Enter the radius of the subwoofer into the calculator to determine the total subwoofer cone area.

Subwoofer Cone Area Formula

The following formula is used to calculate the cone area of a subwoofer. 

SCA = pi * r^2
  • Where SCA is the subwoofer cone area
  • r is the radius of the subwoofer

To calculate the subwoofer cone area, multiply the term pi by the radius squared. The units of the area will be the square units of whatever is used for the radius.

What is a subwoofer cone area?

Definition:

A subwoofer cone area is defined as the total cross-sectional area that the end of a subwoofer cone occupies.

How to calculate the subwoofer cone area?

Example Problem:

The following example outlines how to calculate a subwoofer cone area.

First, measure the diameter of the subwoofer. In this example, the diameter is measured to be 5 inches.

Next, divide the diameter by 2 to get the radius. This gives us a radius of 2.5 inches.

Finally, use the formula above to calculate the subwoofer cone area.

SCA = pi * r^2

SCA = 3.14159 * 2.5^2

SCA = 19.63 in^2

FAQ

What factors affect the performance of a subwoofer besides the cone area?

The performance of a subwoofer is influenced by several factors besides the cone area, including the subwoofer’s power handling capacity, sensitivity, frequency response, enclosure type, and the material of the cone. The interaction of these factors determines the overall sound quality and output level of the subwoofer.

Why is the cone area important in subwoofer design?

The cone area of a subwoofer is crucial because it directly affects the subwoofer’s ability to move air, which in turn impacts the sound pressure level it can generate. A larger cone area can move more air, producing deeper and more powerful bass. However, it’s also essential to balance the cone area with other design aspects to achieve the desired sound quality.

Can I calculate the subwoofer cone area if I only know the diameter of the subwoofer?

Yes, you can calculate the subwoofer cone area if you know the diameter. First, divide the diameter by 2 to find the radius. Then, use the formula SCA = pi * r^2, where SCA is the subwoofer cone area, and r is the radius. This calculation will give you the cone area in square units corresponding to the units used for the radius.