The Type III Noise Reduction is an entirely new concept... virtually instantaneous encode/decode within the circuitry of the box. DBX builds the finest EQ's possible, boxes with the heritage and performance to rival their famous 30 Series EQ's. And to no one's surprise they came out awfully darn good. But then, DBX got the crazy idea of putting this new noise reduction stuff in the box. We listened to it and were amazed. The EQ's sounded great without it but with it the performance was nothing short of incredible. Check it out yourself and see.