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. Vf, Vr, Fl, Fh, Fb, and Lp will still be valid for Qts, Qes, Vas, Dp and number of Ports.
Ported designs require tuning. Bandpass Designer should
give a good approximation of box parameters for most applications.
Use the largest diameter port as the design allows.
Drivers greater than 10" in diameter can produce port noise
due to the air movement.
