These Plena Mixer amplifiers provide a high performance plug and play solution for public address applications. Combining the reliability that is synonymous with the name Bosch, and modern state-of-the-art features, they are in a league of their own. The Plena Mixer amplifiers are easy to use, taking complexity away from the user and putting it where it belongs, inside the equipment. Providing a crisp call or clear music as easy as turning on a radio, the Plena Mixer amplifiers are surprisingly affordable, without sacrificing features such as ducking, priority and flexibility