QSC 12" This is the primary Sound System used by professional DJ's for weddings, clubs, and large parties - but in a compact yet still potent package. The QSC Speaker is the perfect choice for DJs and live sound applications. It features 1000 watts of continuous power that makes any party sound amazing! Having small party? This QSC Speaker will give you many abilities to play your music including music from an iPod, iPad, DJ Mixer, Live sound Mixer, or any other input source.