Doepfer A-189-1 VC Voltage Controlled Bit Modifier/ Bit Cruncher

purchased used and works as new. This module looks simple to use, but it is quite difficult to understand what happens on the signal; I don't have enough time to deeply enter in its features, but in my opinion it is of great help to use it with an oscilloscope for looking at the out signal (and not only listening it). Personally I suggest it for experimenting unusual sounds or controlling signal and not for standard synth sound.