Multiple Speaker Public Address and Intercom System
The amplifier is a Realistic MPA-20 Solid State Amp. This is used instead of an old stereo receiver due to longevity of operation. This unit must remain powered on 24/7 to facilitate as the amplification for the alarm siren as well as serving as a PA, Audio, and Intercom system.
Alarm
The Alarm component will produce a siren loud enough to resinate though an entire city block. If an intruder breaks into the residence, the alarm will cause enough attention that the intruder will surely leave before police arrive as the result of someone phoning the police in the neihgborhood.
Public Address and Music
Audio from various sources can be piped into the system. These sources include satilight TV audio, MP3 music, or a stereo receiver.
Intercom
This is tied into the home intercom system so that from any intercom station within the residence someone may be paged that is outdoors near the house.