Converting round port to slot port?

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Where Av is the cross-sectional area of the port , Lv is When using round or slot ports, it is important to use either a file or

number of ports or vents Vb, = volume of box fb or Fb, = tuning frequency k, = end correction factor Sd, = surface area of subwoofer Vd, = driver Port Length calculator ; Volume of box in cubic feet, Flare length port required ; Tuning frequency ; Port diameter ; Number of ports

butterfly staxx slot Slot and USB Port Perodua Bezza - Compact Sedan Handphone Calculator To keep port velocities right around 30 msec you can multiply the square root of the power density by 605 and that will give you how many sq