Ever wanted your GSSL to have a regular VU meter, so you can monitor the inputs and outputs?
Great idea, but it the GSSL can't typically support a VU meter directly to show gain reduction. This mod board allows you to show the control level that'd usually go to the small meter out to a larger meter than can be used as a VU meter as well.
An User manual will be available for download
A short video showing this board (and the noise reducing CRC board) is available here
A Mouser bill of materials is available here