With an unequaled reputation for sound quality and reliability, the PowerLight Series is a range of advanced-technology professional audio amplifiers designed for touring professionals. PowerLights feature QSC's exclusive PowerWave technology for extraordinary audio performance, reliability and reduced weight. With PowerWave technology, PowerLight amplifiers take your sound to a whole new level. Not only does it give you tighter bass and clean transparent highs, PowerWave also cuts waste heat and boosts reliability. PowerWave is a revolutionary switching power supply technology that provides ample current to the audio power circuitry by charging the supply rails 230,000 times a second though an ultra-low impedance circuit. So unlike amplifiers that use conventional supplies, the audio signal is never starved prematurely and remains crisp and clean. PowerLight Series amplifiers also boast a set of useful features. Individually selectable clip limiters lower distortion and protect speakers, and a standby mode allows remote AC control. High efficiency, Class H linear output circuit lowers AC current consumption and cooling requirements by 40% or more (on selected models)DataPort for remote computer controlComprehensive LED status arraysVariable speed fan for quiet operationNeutrik “Combo" (XLR & 1/4") and barrier balanced input connectors