You would want to use the trim knob when you have automated the volume fader and want to adjust the overall track volume. Jean Visitez mon site / Visit my site at http://www.studiomontebello.com ----- Original Message ----- From: Brian Howerton To: ddots-l@xxxxxxxxxxxxx Sent: Sunday, March 27, 2011 8:13 PM Subject: [ddots-l] trim knob in sonar Hello folks, What is the purpose of the trim knob in sonar? When would you want to use the volume and when would you want to use the trim knob?