RDL STM-DA3 Ultra Low-Noise Microphone Level Distribution AmplifierThe STM DA3 is designed for use in quality commercial sound, broadcast and recording applications. The 1. 2 k balanced input accepts a wide variety of microphone input levels without loading professional low impedance microphones. A multi turn trimmer is user adjustable for either gain or loss in order to match the facility standard microphone levels. Three balanced outputs provide nearly total isolation between the output lines. Unlike mic splitting