The YQ-11A is a versatile mixer preamplifier with five microphone inputs, three auxiliary

inputs, two emergency inputs (high priority) and mute function. MIC 1, EMC 1, EMC 2 are priority inputs, automatically muting all other signal inputs. MIC 1 has the highest

priority, able to suppress all other inputs. EMC 1 overrides all other inputs except MIC 1. Output from the YQ-15E emergency panel to EMC1 provides for alarm siren or emergency announcement to be broadcast over the public address system.

The YQ-11B is a versatile mixer preamplifier with five microphone inputs, three auxiliary

inputs, two emergency inputs (high priority) and mute function. MIC1, EMC1, EMC2 are

priority inputs, automatically muting all other signal inputs. MIC1 has the highest

priority, able to suppress all other inputs. Output from the YQ-15E emergency panel to EMC1 provides for alarm siren or emergency announcement to be broadcast over the public address system.