Powerwave 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. Six models offer a range of power from 725 to 4,500 watts per channel, allowing you to choose the right power for your special application. Power Factor Correction (PFC) on the PowerLight 6.0 and PowerLight 9.0 lowers current draw by over 40%, making them the most efficient amplifiers available