Spin-o-rama requires a full 360-degrees of measurements on both the horizontal and vertical axis. I would need either a microphone array with a 2 meter radius, or a way to rotate the tower speaker on its side and use the tweeter as the point of rotation. Neither are practical. Besides that, the waterfall graphs are more informative than spin-o-rama regarding the speaker's behavior. Spin-o-rama is just a summary of a whole bunch of other measurements, but the waterfall graphs are the measurements that spin-o-rama summarizes. Not only are the waterfall graphs more helpful to understanding the speaker, I would also say they are more intuitive to understanding as measurement information.\n\n\nYou are absolutely correct Shady. However the waterfall plot confuses a lot of people for some reason. That is a pity.