The Medusa 400P Integrated Signal Manager is a versatile public address pre-amplifier unit based on the key features of the Medusa 3 Series. The Medusa 400P Integrated signal manager comes with a built-in 12 zone line selector and is scalable with external LS12A Line Selectors for a maximum of 60 zones. 
The Medusa 400P is designed to be used with external power amplifiers making it a highly scalable suitable for any medium - to - large scale projects. The Medusa 400P can be supplemented by a host of AEX System products such as automatic amplifier changeover unit, Medusa Automatic Evacuation Interface and remote microphones.