Dan Dugan Model E-1A Automatic Mixing Controller - Unbalanced Analog I/OThe Model E 1A Automatic Mixing Controller helps professional audio mixers handle multiple live mics without having to continually ride their individual faders. This eight channel (analog) or sixteen channel (digital) signal processor patches into the input insert points of an audio mixing console. It detects which mics are being used and makes fast, transparent cross fades, freeing the mixer to focus on balance and sound quality instead of being