Stereoplex - VC Analog DP4T Switch
Stereoplex is a stereo Voltage-controlled switch. The switch is bi-directional, meaning the inputs can be outputs and the outputs can be inputs.

6HP

Common uses for Stereoplex:

Four stereo audio sources are patched into sections A, B, C, and D, with one stereo output. This allows you to switch between oscillators/drum mixes and many other things. Perfect for recording, you can multi-track sound by sound without needing to un-patch tons of cables.

Another use is a single stereo input sent to four different effects. when the switch is clocked, this is a great way to add interesting rhythmic changes to the sound. bounce between reverb, delays, phasers, and distortion for wild glitchy momentary effect bursts.
Each L/R channel can be used completely independent of each other.
The only shared element is the clock and reset
Stereoplex can also be used with control voltages.
Stereoplex can also be used as dual-mono.
Stereoplex can simultaneously carry CV and Audio.

the left side of each in/out has a normalled connected to the right side.