Not only do recordings invert phase, but each equipment component in you system may or may not. I've found lately that recordings tend to be more consistant and if you use a current test recording to determine phase then you'll be ok with that setting for most recordings. However, if a recording seems to lack omph and it bothers you, then you'll need to push the button occasionally.
Where you'll really notice it the most is on a recording of the kickdrum in a rock drum kit. The Sheffield Drum Record LP and CD is a good test. Both of those have the same phase. It's really nice that Rowland provides an easy to use button. Anyway, if you set your phase to the Drum Record, then I think you'll be happy most of the time. Without the button you'd have to switch poles on your speakers to get the same impact.
Dave
Where you'll really notice it the most is on a recording of the kickdrum in a rock drum kit. The Sheffield Drum Record LP and CD is a good test. Both of those have the same phase. It's really nice that Rowland provides an easy to use button. Anyway, if you set your phase to the Drum Record, then I think you'll be happy most of the time. Without the button you'd have to switch poles on your speakers to get the same impact.
Dave