This is a mod from Kenton that allows you to control your Mono/poly
from a MIDI keyboard or sequencer. In the US, this product can be
purchased from SoulFruit. The specs are as follows:

MIDI Thru
MIDI In (any channel) for notes (44 Notes - MIDI notes 41 - 84) pitchbend
mod wheel
aftertouch
velocity
any controller (assignable)
active sensing
all notes off
omni on-off
reset all controllers.
Aftertouch can control modulation, pitch bend, filter
Velocity can control filter
Any controller can control filter
All setups are stored in non-volatile RAM

To view installation instructions for this mod before you buy,
click here.