Linearx Leap 5 Fixed -

Most remarkably, LEAP 5 includes a sophisticated port velocity simulator. Many competitors simply show you a frequency response chart; LEAP 5 shows you the air velocity at the port exit, allowing you to predict chuffing (audible port noise) before cutting wood.

Predicting how the speaker will sound at any angle, both horizontally and vertically. Transducer Modeling: Linearx Leap 5