Dan Dugan Model E-2A Automatic Mixing ControllerThe E 2A is an automatic mixing controller with balanced analog and digital audio connectivity. Features: Eliminates late upcuts Reduces PA feedback and studio noise Reduces comb filtering from adjacent mics 28 channels of processing, 12 Analog plus 16 ADAT All Dugan algorithms: Speech System, Music System and Gain Limiting Six bus pre post matrix mixer Channels may be grouped into three independent automixers Four switched Ethernet ports available