When AC power is applied to a Meyer Sound Self-Powered loudspeaker, the Intelligent AC supply automatically selects the correct operating voltage, allowing international use without manually setting voltage switches. The Intelligent AC supply also performs the following protective functions to compensate for hostile conditions on the AC mains:

• Suppresses high voltage transients up to several kilovolts

• Filters common mode and differential mode radio frequencies (EMI)

• Sustains operation during low-voltage (brown-out) periods

• Provides soft-start power-up, which eliminates high inrush current

These functions protect both the loudspeaker and electronics from being damaged by erratic AC conditions, and increase the life-span of the loudspeaker.