Mackie Designs, Inc.","Welcome to the world of high-definition live sound. The HD1531 3-Way High-Definition Powered Loudspeaker delivers class-leading power, unmatched clarity and extreme flexibility in a design that is understated, yet stunning. Class-D Fast Recovery™ amplification produces a ridiculous 1800W of peak system power. High-Definition Audio Processing incorporates next-generation Mackie \"Active\" electronics and re-defines powered loudspeakers by implementing Mackie's patented acoustic correction processing for an experience that is unrivaled in the world of portable powered PA systems. System tuning and custom transducer design by EAW ensures an optimized system that sounds great every time. The compact yet rugged, all-wood enclosure offers superior protection and a clean, unimposing look that will blend seamlessly into almost any environment. HD1531 3-Way High-Definition Powered Loudspeaker - Elevate Your Experience