The D-936R is a 4 stereo input module designed for use with the D-901 Digital Mixer, etc. It is equipped with standard RCA pin jacks. The D-936R features two stereo transmission modes: 1)Selection of one of the four stereo inputs for transmission to the D-901. 2)Mixing of all four stereo inputs, transmitting the mixed signal to the D-901 through left/right channel outputs. Mode settings and stereo selection are performed at the main frame such as the D-901.