Stereo Tool

Maybe someone can give me some help here.

At our local broadcaster we use three different presets. One for classical music. However, the problem is that this results in a dive down the sound level. This contrast was so great that I adjusted the preset (autogain), but that pulls up the sound level of parts of classical music way too much again. So I actually want the same volume, but without pumping up the quiet parts in classical music.

Hopefully there is a simple solution that I now overlook...