Groundhog, like Tvad has said, we need to know what kind of speakers you're driving. Better yet, give us your entire rig and the music you love most. Then we can give you some tips on what may help you out. Realistic, but dead in the mid range? The core, the gestalt of realism is in the midrange. This is where most of your music is. Maybe you don't require a new amp. This could get to be an expensive answer to your question or just the reverse.
warren :)
warren :)