The PREZONE1 is a multi-functional stereo preamplifier that allows you to control the volume in 2 stereo zones independently. It allows you to mix the 2 microphone levels easily with one of the 4 music sources. The innovative and extremely intuitive design of the front panel will instantly indicate how to operate the progressive PREZONE1. The logical rear panel will give every installer an instant understanding of installing the unit. It’s easy to distinguish PREZONE1 from its competitors. Its higher signal-to-noise ratio, ease-of-use, logical design, and versatile installer features make it suitable for almost every professional audio application