QSC KW153 15" 1000 Watt 3-Way Active PA Loudspeaker 1000-watt Class D powered speaker (2 x 500 W) Two combination XLR-1/4" TRS inputs and RCA inputs with direct outputs Four-position mic/line gain knobs Mix up to three audio sources internally and send sum to balanced output for daisy-chaining QSC's sophisticated DSP, including DEEP mode for extended bass response