Hi Mike,
Some of us think in pictures - me being one who does. Music is obviously aural, but sometimes we can put a shape or a colour to sounds (don't ask me how, but it works!) I have been told that I have a dark brown voice and I know exactly what that person means. Would it help, in your explanation of what the SF-2 can do to sound, to look at it from a visual perspective as well as aural, or am I just talking out of my low frequency backside!!! Cheers, Rob