The PowerLight 3 Series is designed for the most demanding live audio users whether in touring rigs or fixed installations. The most requested features of the PowerLight 2 series have been upgraded to deliver the ultimate analog amplifierwhile the QSC Dataport ensures full compatibility with advanced digital processing and QSControl. Three models range in power from 1250 watts to 4000 watts per channel at two ohms all in two-rack space chassis that are only 15.6(40 cm) deep and 22 lbs (10 kg).