Shure AXT630US Axient Series Antenna Distribution SystemShure AXT630US Overview Designed for professional applications in which you need reliable wireless sound, the Shure AXT630 is an Antenna Distribution System capable of handling high signals without distortion, even in the most inconvenient RF environments. This unit sports selectable 60 MHz input filters to match with the available bands from Axient transmitters, thus offering protection against out of band signals and ensuring a low overall RF noise