The XLS Series of power amplifiers from Crown represents a new era in affordable, quality power amplification. The line consists of three models in a uniform, rugged chassis, incorporating the best of tried-and-true design principles and innovative features. XLS Series amplifiers are professional stereo power amplifiers engineered to meet demanding audio requirements - reliably and within budget. With over five decades of experience designing and building rock-solid products, Crown is the standard in amp technology. So check out the affordable Crown XLS Series. They are a powerful argument for quality and value! Features include: Housed in a rugged, all-steel 2U chassis. Efficient forced-air fan prevents excessive thermal buildup. Electronically balanced XLR inputs and touch-proof binding post outputs and two Speakon outputs. Features precision detented level controls, power switch, and four LEDs, which indicate clip for each channel, power and fault conditions.