Expansion module for the WMD Micro Hadron Collider filter. It extends the filter by additional audio inputs and individual outputs for the different filter types.
The Audio Expansion features individual audio outputs plus a notch output for the first filter. In addition there are two more audio inputs per filter for summing any combination of signals to create thick and deep tones.
Inputs 1D and 2C are inverting inputs so you can experiment with phase interactions.
Expansion modules are supplied with a 14 pin cable and connect only to the uHC. No external power is required.