Okay, I think I finally understand this. Richard's program adjusts it dynamically, meaning it raises the lows ONLY and raises the the highs ONLY, when necessary. Audiocatalyst does both of those, regardless and not in proportion to the part that's playing, it's adjusted the same amount throughout the entire track. If this were drawn on a graph, you'd have the track shown as a straight bar across the middle, representing the original sound. Audiocatalyst would have two identical lines running the length of the track, one across the top and one across the bottom, with the peaks and pits at the same points on both the top and bottom. Voladj would have two independent lines across the top and bottom, with the peaks and pits at different points.

I think that makes sense. If not, it does to me!

George