Main retrofit board for Sustainiac Stealth Pro systems.
 
Available in 4 options, depending on the bridge pickup in your guitar:
 
- Passive Humbucker
- Passive Single Coil or P90
- Active EMG
- Active Fishman
 
Measures 90mm x 30mm (without connectors).
 
Sustainiac driver required. It will NOT work by itself or with other sustainer drivers.
 
Made in USA