Mackie SA1521 15-inch 2-Way 500W Active Loudspeaker (PAIR) CG01YUW。Mackie SA1521 15-inch 2-Way 500W Active Loudspeaker (PAIR) CG01YUW。Mackie SA1521 15-inch 2-Way 500W Active Loudspeaker (PAIR) CG01YUW。Used Mackie SA1521 Powered Full Range Speaker Cabinet。SA1521Active Speaker FeaturesActive, High Output/Wide Dispersion133 dB Peak SPLBi-amplification with 400 watts rms low-frequencyand 100 watts rms high-frequency powerWide dispersion, ultra-low distortion high-frequency hornComplete electronic and component protectioncircuitry15-inch high efficiency, light mass wooferState-of-the-art precision 1.75-inch titaniumcompression d with 3-slot, low distortion,optimized geometry phase plugElectronic equalization, time correction andphase alignmentLow Frequency Dynamic Bass Protection, RMSLimiting, Power Supply and Amplifier ThermalProtectionProfessional trapezoidal enclosure designCorrectly weight-balanced with two comfort-able side handles for easy carrying and set upOne top and one bottom handle for easy reposi-tioning of speaker and built-in pole mount cupon bottomApplicationsLive ApplicationsPlayback ApplicationsPortable PA SystemsCorporate Events