ARTONE Professional Audio Matrix Mixer Processor PAP-1616. This series of matrix audio processor is adopt power DSP tech to proceed microphone or line input and audio outputs, it is capable of matrix of 8x8, 16x8 and 16x16 for different application. Plenty of audio parameter adjustments, noise gate, feedback, filter, limiter, delay, mixer, etc. Remote wall keypad connects to processor for easily control. It is perfect to have best sound for gym sound, restaurant music, cafe shop or stage show sound system.