Founded nearly 50 years ago, QSC is a leading designer of speakers, power amplifiers, mixers, and other pro audio equipment. QSC speakers use digital signal processing (or DSP) to adjust the frequency spectrum in real time, with added GuardRail technology to protect your speakers from harmful clipping. QSC live sound is improved with the addition of a power amplifier, delivering enough wattage to get the most out of your speakers. Not sure which QSC live sound package is suitable for your performance needs? Our educated staff can guide you through the entire product line. To learn more about QSC speakers, chat with us live, visit one of our showrooms, or call 1-800-355-7746.