AudioManager widget

Discovered the AudioManager widget on the app store, which may help with another feature from WinMo that I'm missing on Android - a system-wide equalizer and audio booster.  The music volume when played via the headphone jack on the Incredible is way too low, even when set to max, and on WinMo I can just turn on audio boost, but with Android there don't seem to be any options for boosting or equalizing the audio.