The Model 2010 Dugan Automatic Mixing Controller is designed to allow superior automatic mixing to be added to analog mixing consoles. No more chasing the channel being used. The Model 2010 instantly recognizes the channel in use and adjusts the gain to a predetermined level while reducing the gain an additional amount in unused channels. This results in more useable gain and less echo pickup. While the Model 2010 has easily accessible manual/auto switches to allow either manual or automatic operation, once an operator experiences the seamless operation of the Dugan Speech System they rarely if ever use the manual mode.