Press 'Reverb' over fader #4, touch the button at the bottom of the channel you're using, and use the wheel to dial it down. Also note that when you mix down onto channels 9/10, it automatically adds rev. to THOSE tracks. After mixing down, I go to Reverb again, go to 9/!0, and turn the reverb level to off, or you end up with more wet sounding tracks than you meant.