Dual driver vented enclosure ~ calculator
This system uses the
Butterworth 3rd order 2-way crossover to produce a
quasi- spherical vertical response pattern. A dimension ratio of 1: 1.618: 0.618
provides cancellation of resonating frequencies inside the enclosure. Port, driver, and
tweeter should be centered vertically so they are in phase with the listener's ear.
First enter driver
Then enter volume of
enclosure to calculate performance specifications. If only Qms and Qts are known,
press "Qts" button to calculate Qts. Qms and Qes are optional. Fs, Qts and
Vas must be entered.
Volume and port dimensions are recommended for optimum
performance. However, they can be changed to calculate performance specifications
for different size ports and enclosures. Enter different volume and port dimensions
if desired. Enter volume of internal driver and parts. Calculate performance
specifications before calculating port dimensions.
1The measurement is the diameter across the total physical
"moving" cone of the driver.
2The dimensions are
"inside" measurements which are calculated to provide the enclosure volume