The Anymix Pro plug-in is described by Iosono as “the surround maker” and actually it isn’t an unreasonable description. Mike demonstrates how it is a Surround panner that can pan outside of the surround field with loudness and EQ compensation built in. It is also a Surround Upmix enabling you to produce surround capable and downmix friendly upmixes of stereo content.
Please note what you are listening to is a downmix of the surround output.