FOUR-CHANNEL STEREOPHONIC DEVICE

摘要

A four channel stereo mixing circuit is disclosed whereby four audio input signals may be mixed in various proportions to yield four audio output signals. The mixing is accomplished through the use of four ring connected potentiometers with the audio input signals applied either to the midpoint of the potentiometers or to the connection point of two potentiometers. The output signals are derived from the moveable terminals of the four potentiometers.