The 528Eis a complete, self-contained voice processor that performs six separate functions: microphone preamplification, de-essing (sibilance removal), compression/limiting, downward expansion, parametric EQ, and voice symmetry alignment. All six processors may be used simultaneously. Although we call the 528E Features:Works with any microphone (or line input)Enhances vocal intelligibilityIncreases perceived loudness and "presence"Great for voices as well as instruments and effectsReduces off-mic noiseReliable, proven design