A mixer, patchbay, inverter, and attenuator.
There are about 50 surface mount resistors in this kit. SMD resistors are about the easiest to do, so don’t let that put you off if you haven’t done SMD, this would be a good module to get experience.
Then a ton of regular resistors, LEDs and switches. Nothing too difficult, just a lot of parts.
The unit works well and is very useful Multiple ways to route thins, and the inverse signal for, say, an LFO is very handy.
A good unit overall, recommended.

Build