Powered Speaker unit with mixer in-built. This 2-way speaker can reproduce clear and crisp vocal sound with comparison to many convention sound system. With individual EQ and volume control for Mic and Line inputs, and pre-out output, it is easy to fine tune the sound quality you desire. It is also scalable to connect to as many sets of KEC AS30S for larger venue. The 60 Watts amplifier is capable to cover a room size of 100sqm.