Bosch PLE-1P120-US Plena Amplifier 120W | 70V/25V/4Ω Power Amplifier

The Bosch PLE-1P120-US Plena Amplifier is a professional 120W power amplifier designed for commercial public address (PA), background music, and voice evacuation audio installations. It supports 70V, 25V, and 4Ω speaker systems, providing flexible installation options for a wide range of commercial audio environments.

Built for reliable continuous operation, the Plena amplifier features overload and short-circuit protection to help safeguard the system during demanding applications. A 24V battery backup with automatic switchover provides continued operation during mains power interruptions, making it suitable for installations where audio availability is important.

The amplifier also features a temperature-controlled cooling system for quiet and efficient operation and an LED VU meter for convenient monitoring of output levels. Its compact 2U rack-mountable design allows easy integration into professional audio racks and equipment cabinets.

Key Features

120W Power Output – Suitable for commercial PA and professional audio systems.
Multiple Speaker Configurations – Supports 70V, 25V, and 4Ω speaker systems.
Overload Protection – Helps protect the amplifier during excessive loads.
Short-Circuit Protection – Provides additional system protection.
24V Battery Backup – Supports backup power operation during mains failure.
Automatic Switchover – Automatically switches to battery backup when required.
Temperature-Controlled Cooling – Helps maintain reliable operation while minimizing unnecessary fan noise.
LED VU Meter – Provides convenient visual monitoring of output levels.
2U Rack-Mountable Design – Easy to install in professional equipment racks.
Commercial-Grade Construction – Designed for reliable operation in professional audio installations.