Just when you thought you knew everything about the OB-6, J3PO (Julian Pollack) reveals a hidden feature — our “spring reverb thwack” easter egg — in an exclusive video. We snuck this fun little extra into both the OB-6 and Prophet-6 when they were first released and patiently waited for the world to discover it. Now the secret is out! It works on both the keyboard and desktop models of the OB-6 and Prophet-6. Give yours a thwack and hear for yourself.