This document provides design templates for public address, voice alarm, and IP audio systems including:
1) A 6-zone BGM and paging amplifier system with various speakers and microphones.
2) 6 and 12-zone voice alarm systems with remote microphones and backup amplifiers.
3) IP audio systems using rack-mounted or wall-mounted amplifiers for multiple zones.
4) IP speaker systems for classrooms, outdoors, and intercom systems for schools and parking lots.
5) Conferencing systems using wireless, infrared, or UHF microphones connected to mixers and amplifiers powering various speakers.