Palmer microphone splitters are used when a signal source has to be sent to multiple inputs. Palmer microphone splitters are used when a signal source has to be sent to multiple inputs. For example, if the microphone signal is to be sent simultaneously to the mixing desk in the hall, the in-house sound system, the monitor mixing desk on stage, and – if the event is 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.