Multifunctional 4-zone mixer. Pre-amplifier with 4 zones, independently adjustable. Integrated media player with FM tuner, USB and SD slots, as well as Bluetooth receiver for audio streaming. 3 microphone and 3 line inputs. Overload protection. Bell and fire alarm on all channels, telephone paging. 19-inch rack mountable (rack ears included). The PDV series includes a range of fully equipped mixer amplifiers with four zone outputs, each controllable via separate volume controls. The amplifiers in this series feature an integrated MP3 module with USB and SD card slots, an FM tuner, and a Bluetooth receiver. When using microphone channel 1, all signals from the physical inputs and the MP3 player are overridden. If necessary, the device can be connected to a fire alarm control panel via the 24V connections for emergency evacuation. All models are fully protected against overload to prevent damage. This amplifier series is suitable for applications in banks, town halls, supermarkets, schools, hotels, restaurants, shopping centers, or other public spaces.