AJ Vented Designer Software is for designing vented or ported theoretical enclosures.

Subwoofer Box Comparison Calculator:
Online version of all three calculators (Bandpass, Sealed and Vented)

Bandpass Designer is freeware. Download Here.
Sealed Designer is freeware. Download Here.
Vented Designer is freeware. Download Here.

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Input Parameters


 

1. IMPORTANT: MAKE SURE THE UNITS MATCH (e.g. Vas is in liters not cubic feet). Pmax, Diameter, and Xmax are not required for box calculation.  They are used to determine the power response curve. Vb, Fb, F3, and Lp will still be valid. Vented designs require tuning.  Vented Designer should give a good approximation of box parameters.

Calculated Parameters

The following speaker/box parameters are calculated: Vb - Volume of box (one to be built) in liters Fb - Box resonance in Hz F3 - Half power frequency in Hz Lp - Length of port in cm

1. F3 is the most important parameter.  The lower the F3 the lower the bass.  A F3 below 50 Hz should be suitable.
2. Vb is the volume of the box.  Generally, the lower the bass the bigger the box.
3. For Box Calculator instructions go here.

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by Jimmy Raymond

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