HX3 KeyB Duo Installation

This page shows installation of an HX3 mainboard (FPGA based) as a replacement for KeyB Duo sound generator (DSP based). Board is completely remoted by MIDI from KeyB controller. All knob/button/drawbar functions are retained.

Replacing the KeyB key scan is optional. Installing a FatarScan2 board for direct connection to HX3 yields much lower key latency.

Remove KeyB DSP board and install HX3 board as shown. Some holes must be drilled in base plate.