
via
quiet_channel where you will find more shots and info.
"The 8 knobs on the top of the case control Master Volume, Kick, Clave, Snare, Conga, Low Tom, High Tom, and Hi-Hat levels. The two LEDs indicate power and midi activity... The drum sound circuitry was taken from a broken old Farfisa organ."
Be sure to check out the post for the more detail.