Bosch Appliances Music Mixer PLE-1MEXX0-XX User Manual

Plena Mixer Amplifier

 System Overview | en

Bosch Security Systems B.V.

Installation and Operation manual

PLE-1MExx0-xx | V1.0 | 2011.04

The Plena Mixer Amplifier is a high performance, professional public address unit for mixing 

up to four separate microphone/line signals, and one music signal. 

The volume of each microphone/line signal can be individually adjusted to obtain the required 

mix; the mixed output is controlled via the master volume control and separate high/low tone 

controls. The unit is easy to use, and provides a crisp call or clear music. The amplifier also 

has enhanced features such as priority, labeling, and setting indicators.

All Microphone/line inputs can be switched between microphone level and line level 

sensitivity. The inputs are balanced but can also be used unbalanced. Phantom power can be 

selected via a DIP switch to provide power to condenser microphones. Input channel 1 can 

take priority over all other microphone and music input:

–

Input 1 can be activated by contact closure on a PTT (push to talk). A chime can be 

configured to precede an announcement.

Users can create a custom label for inputs and music sources. The label can be attached to 

the special holder at the front of the mixer amplifier. Colored pins can also be inserted at 

various positions around the volume and tone dial controls to indicate favorite settings for a 

particular application.

An LED meter monitors the master output before the zone selection. This signal is also 

present on the headphone connector below the output meter. For total reliability and ease of 

use, a limiter is integrated into the output stage to restrict output if the user applies too much 

signal.