This Mackie srm450 is a 1000 watt portable powered loudspeaker a 1000w system power paired with custom transducers deliver gig level volumes with room to spare.12 inch high output LS driver / 1.4 inch titanium dome compression driver. high definition audio processing for professional sound in unmatch Clarity. patented acoustic correction developed with touring {contact info removed} 2-way crossover .driver time alignment and face correction. quick one button speaker mode selection for application-specific voicing PA DJ Monitor and soloist. effortlessly eliminate nasty feedback with one button automatic feedback Destroyer.integrated 2-channel mixer featuring dual Mackie wide Z inputs handles anything from Mike to qatar's to mixers with a single Twist of the gain knob. include stereo RCA input for easy connection to music source. perfect for the singer-songwriter. plugging it in and leave the mixer@home. smart protect DSP kicks in to protect your investment with things get pushed a little too hard monitor specific angle in Boise mode perfect for cutting through his on-stage.flyable for permanent install. proven highly durable portable design.