[unable to retrieve full-text content]Sennheiser’s Evolution wireless EW 300 G3 and EW 500 G3 wireless microphone and monitoring systems are now available in an A1 variant that covers the 470-516 MHz range; its flagship Digital 9000 and Digital 6000 series and the AVX camera-mountable lavalier, which works in the license-free 1.9 …