The Xs Series of power amplifiers from Crown represents a new era in affordable, quality power amplification. The line consists of four models in a uniform, rugged 2U chassis, incorporating the best of tried-and-true design principles and innovative features. The four 2-channel models in the series are the Xs500, Xs700, Xs1200, and Xs900. They are identical except for output power. The Xs4300 is a 4-channel model. Features include: Housed in a rugged, all-steel 2U chassis. Efficient forced-air fan prevents excessive thermal buildup. 2-channel models have XLR-1/4" combo inputs, 3-pin Phoenix-style inputs, daisy-chain XLR outputs, touch-proof binding post outputs and Speakon outputs. Xs4300 has XLR-1/4" combo inputs and touch-proof binding post outputs. Precision detented level controls, power switch, and five LEDs which indicate clip for each channel, power, AC mains, temperature and fault conditions. Microprocessor-controlled protection system.