Today, the most commonly used paging technology is the use of Self-Amplified Speakers and Horns. This represents nearly 100% of all new installations because it is inexpensive, easy to deploy and easy to troubleshoot. It uses a simple 2-pair connection from the PBX to each speaker. One pair is for the speech and the other pair is for the power.
Each speaker or horn has a small built-in amplifier - just for that speaker. If the amplifier should fail for some reason, the others keep working. Best of all, you can daisy-chain the cabling - in other words, drop and insert as needed.
WHSA-H5 Amp.Paging Horn POWRSUPPLY Needed, sold separately! WHSA-H5 5 Watt weather-proof horn with built-in amplifier for use in large and/or noisyareas. A universal mounting base is adjustable... (Read more)