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**mtx.com** Golden Ratio

Once you have determined the proper volume for your enclosure, the “Golden Ratio” is a simple way to calculate enclosure dimensions that minimize panel resonances.

Begin by finding the volume of the enclosure in cubic inches. If your volume is in cubic feet, simply multiply that number by 1728. Next, find the cube root of this number (you will need a scientific calculator for this). This is your first panel dimension. Then take the first dimension divided by 1.62, This is your second dimension. For the third dimension, multiply the first panel dimension by 1.62.

Example

Volume = 1.75 Ft^3

1.75 X 1728 = 3024 in^3

cube root of 3024 = 14.46” (1st Dimension)

14.46 / 1.62 = 8.93” (2nd Dimension)

14.46 X 1.62 = 23.43” (3rd Dimension)

Remember that these are internal dimensions, so you will need to add for the thickness of the wood. Assuming 3/4” wood, this enclosure would be 15.96 X 10.43 X 24.93 .

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