NS 9048 is a noise detector that automatically adjust the volume level depending on the environment noise. It is specifically addressed to all those applications with a significantly different people affluence during the day. It can be connected to any DXT 9000 power amplifiers and can act on every single system’s zones, measured with a variable number of microphones (up to a maximum of 8). Specifically designed to work with for 100V speakers used as microphones. However, it can also be used with capsule microphones.