Why does the light on the front of my Temblor T8 subwoofer turn to white?

The Temblor T8 features a low power (Sleep Mode) that complies with EU Power Efficiency laws. When the T8 has not been in use for several minutes, it will enter a low power state indicated by the PreSonus logo changing to a white LED color. When in use, the T8 wakes up and the PreSonus logo changes to a blue LED.