Hi Patrick

> As far as I understand it the practical application of lin/exp mixers
> this is that an exponential curve gives lot of control over the lower
> range

nearly correct. Exponential gives more control over the upper range. And it
is not only "more control". In fact our ear senses "loudness" not "level".
The loudness sensing is not linear but quite similar to an exponential
characteristic. So a the position of a logarithmic fader will represent the
loudness sensing quite correct. The same is valid for the VCA.

Florian