Nothing is as frustrating as the disruption caused by radio frequency (RF) interference getting into your sound system. Your audience hears annoying talking or noise from local radio activity that can be very distracting. Our RF eliminator can be placed "inline" on audio lines connected to your mixer to filter out unwanted RF. The barrel-type filter has XLR connectors that plug into the end of mic cables or snake connectors. This device will not color your sound and will pass phantom power.