Palmer microphone splitters are used when a source signal must be sent to multiple inputs. For example, if the microphone signal if the microphone signal is to be sent simultaneously to the front of house mixing desk for the house sound system, the monitor mixing desk onstage, and - since the event is being broadcast live - to the outside broadcast van. This requires a "1 in 3" microphone splitter. Thanks to the use of generously dimensioned audio frequency transformers, the sound is not influenced, but ground loop hum is prevented. The PMS02 can also be used to convert unbalanced signals into balanced signals and vice versa.