USED Pro Co Sound MS-43A - Four-Channel, Three-Way Mic Splitter
For splitting the signal from a low-Z microphone between 3 mixers. 4 channels, each with female XLR-type input and 3 male XLR-type outputs (1 Direct and 2 Isolated). Isolated outputs have ground lift switches. Uses Pro Co MBT-2 transformers (150 ohm 1:1:1).