8 Channel Professional 4000 Watts Powered Mixer With USB/SD Slot 16 DSP (Digital Multi-Effects) 8 input mono channels and 2 stereo balanced inputs Build-in amplifier 4000 Watts PMPO / 2000 Watts Program / 1000 Watts RMS / 2 x 500 Watts RMS @ 2 Ohms Ultra-low noise discrete mic preamp with +48V phantom power 16 DSP Multi-Effects / USB/SD slot for MP3/WMA Format direct play Balanced inputs for highest signal integrity / Ultra-musical 2-band EQ on all channels