Phase on the Subwoofer setting
Not every Subwoofer you can change the Phase manually. Some of the speakers but allow for a correction of the phase shift:
- Look on the back or bottom of your Subwoofer to a switch that is labeled "0° / 180°" or similar. This should be in the basic settings to 0°.
- Move the Slider to 180° to correct the phase shift.

Subwoofer HECO
Continue to sounds of their music is lost, you should the Subwoofer be different in the room. The location of multiple speakers to each other determines the Phase in which the sounds appear to each other.
