Having one speaker out of phase with the other will result in loss of soundstage, poor center fill, reduced bass and overall lack of dynamic punch as the speakers are literally fighting each other.
If you hook one speaker up out of phase, the more phase linear your equipment is, the more the sounds will sit in the speakers. The center will be very diffuse.
Some equipment that struggles with phase shift problems will give you some very odd effects when you put one channel out of phase.
To get low phase shift the equipment has to have wide bandwidth. Our ears don't hear phase shift at all with a single tone, but they can detect phase shift problems over a band of frequencies. If your equipment has low phase shift, you will get a better soundstage as a lot of the soundstage information is presented in the form of shifted phases at various frequencies depending on the room in which the recording was made.
Sometimes bass is tricky to hear on some systems so to test for phasing I select a recording that has a vocalist positioned dead center in the recording. Then I can listen for bass and center-fill.
If you hook one speaker up out of phase, the more phase linear your equipment is, the more the sounds will sit in the speakers. The center will be very diffuse.
Some equipment that struggles with phase shift problems will give you some very odd effects when you put one channel out of phase.
To get low phase shift the equipment has to have wide bandwidth. Our ears don't hear phase shift at all with a single tone, but they can detect phase shift problems over a band of frequencies. If your equipment has low phase shift, you will get a better soundstage as a lot of the soundstage information is presented in the form of shifted phases at various frequencies depending on the room in which the recording was made.
Sometimes bass is tricky to hear on some systems so to test for phasing I select a recording that has a vocalist positioned dead center in the recording. Then I can listen for bass and center-fill.