This add-on supports an interface for effects in VST format. It is delivered with powerful effects (Limiter, Compressor, EQ, Reverb, Delay, Auto-Filter, Phaser, Chorus, Flanger) by the Danish manufacturer Kjaerhus Audio and can be expanded by other common VST effects from various manufacturers.
All important program functions are controllable via MIDI messages. In the Arranger you can send MTC and MIDI events. This allows the synchronization to external MIDI devices as well as the connection to MIDI controllers.