Two sides (A and B) that allow you to add all the tweaks implied in the Lyra-8 DIY documentation. The A side expands the options for Attack, Release Fast, and Release Slow. Switches can turn the tweaks back to stock values. The B side expands the Voice Range, Delay values, Distortion, and Vibrato. Original values are indicated or switched.
There is a suggested Bill of Materials (BOM) on the Lyra-8+ DIY build page.
Note: this is for the PCBs *only* No parts or electronic bits are included!
These are Revision 820