The Sound Town PA speaker system includes 2 x METIS-112 passive PA speakers and 1 x ST-UPDM5000 power amplifier The METIS-112 is a 12" full-range passive DJ/PA speaker that comes with 300W RMS and 600W peak power handling capability. Built with top-quality components, this unit is engineered to deliver exceptional sound across every detail. Its 12" woofer and 1.5" compression driver produces a 50Hz-20kHz frequency range and roof-shaking volume without distortion The ST-UPDM5000 is a professional 2-channel UPDM power amplifier. The UPDM (Unipolar Pulse Density Modulation) technology enables the unit to keep the power consumption to minimum. It delivers 2 X 750W watts power at an 8-ohm load and provides more headroom to your PA rig Two METIS-112 speakers can be powered by the ST-UPDM5000 amp; The PA speaker system is perfect for live sound, karaoke and venues such as restaurants, lounges, bars, schools and churches