Mixer amplifier is applicable in villas, shops, supermarkets, restaurants, bars, theme parks, schools, canteens, garages and other places where BGM creates the right atmosphere, as well as clear voice announcement is needed. Its design is suitable for both tabletop and rack mount. The one microphone inputs by XLR type, phantom power and gain control for microphone 1 is provided. One 3.5mm earphone auxiliary input and one dual RCA auxiliary input (with volume control on rear panel) are provided for extra audio sources inputs. One line output could feed signal to an extra power amplifier. These 100V, 70V and low impedance 4 to 16 ohms speaker terminals are flexible for user during installation.