Go to the topic index link at the top of any page in this thread. Click that. Then click "Keypost summary" to sort the list by alpha. Then look for the TECH:SOUND entry (you might have to click the "show all" link as it only shows a portion of the list). Start there. It's not EQ settings, but see if the suggestions there can do it for you.
Also note that attenuation is backwards from what you think, so a negative attenuation is louder and a positive is quieter. I have no idea why Stern doesn't just make it a user friendly standard +/- volume/mix adjustment (for music, voice, and effects) and forget the stupid attenuation nomenclature. Maybe @timballs, Theguyoverthere or Xaqery can chime in on the thinking for that? It drives me crazy and is not user-friendly. It is, however, a system level adjustment so it may be more Lonnie's domain (since he worked on Spike2 system code with Lyman), I'm not sure.
While they're in there fixing that, there should be a system level mixer that makes it impossible to overdrive the volume by users setting combination of music, voice, and effects that are over 100% total. OR give users a "budget" of points they can spend (RPG style) on any of the three sound areas so it's impossible to overdrive the output.