Many years ago(before Pro-logic was affordable)I was fortunate enough to attend a dealer sponsored demo for Lexicon and the MC-1(if memory serves correctly). Very impressive processing for music. You could set the size of the hall as well as the decay rate of the reverb, if that makes sense! The rep. would hit pause and instead of immediate silence, the sound decayed into silence as if you shouted in a real hall....I was impressed! That type of DSP I have never encountered below the Lexicon's price point.