## How are subwoofer enclosures calculated?

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You simply measure the height, width and depth (in inches), multiply them together and then divide that number by 1728. If the box has internal measurements of 6″ high*18″ wide*12″ deep then the volume of the box is 1296/1728=. 75 ft^3.

## How do you calculate enclosure size?

Simply measure height, width and depth of enclosure you intend to build. Subtract the material thickness. Multiply these numbers and divide by 1728 to get the volume in cubic feet. For enclosures with an angled panel, measure the larger and smaller depths, add these together and divide by two.

**How do you find the cubic air space of a sub enclosure?**

By multiplying the height, width and depth together we can find the number of cubic inches in one cubic foot. When we multiply three dimensions measured in inches together, the answer is in cubic inches. We also know there are 1,728 cubic inches in one cubic foot.

### What should my port area be?

To keep port velocities right around 30 m/sec you can multiply the square root of the power density by . 605 and that will give you how many sq in per cubic foot of box volume you need. So in my example of a 500 watts per cube enclosure that means you need 13.5 sq in per cube.

### How much airspace does my subwoofer need?

According to the JL Audio website, the recommended volume space for a 12-inch subwoofer is 1.25 cubic feet. For a 10-inch woofer, the volume recommendation is 0.625 cubic feet, and the recommendation for an eight-inch speaker is 0.375 cubic feet.

**What is the enclosure calculator?**

This is an enclosure calculator for sealed enclosures. It is designed to help you calculate the size of the pieces of MDF that are needed to build an enclosure. Click HERE to make this applet fill this window. For those who are new to this site and have found this page via a search engine, this page is part of a larger site.

#### What are the different types of subwoofer box enclosures?

This page allow you to compare the different types of subwoofer box enclosures for a particular driver. The types include sealed, ported and bandpass enclosures. Some of the comparison parameters include box volume, frequency curve, -3 decibel point and box resonance frequency.

#### What is a net volume for a speaker enclosure?

‘Net’ volume is the internal volume after the port volume is subtracted from the gross volume. If your speaker needs an enclosure that’s 1.5 cubic feet ported at 35Hz, the ‘net’ volume must be 1.5 cubic feet for proper operation.

**How do you calculate the volume of a subwoofer?**

To calculate interior volume, first convert all fractions to decimals (½ = .5) before entering the width, height, depth, or diameter, and thickness into any of our speaker box calculators below. For additional subwoofer wiring options, please see our Subwoofer Wiring Wizard.