EMS have released a demo version of their Synthi Avs Windows VSTi.

Synthi Avs (Synthi A Virtual Synthesizer) is a software emulation of EMS' hardware, "briefcase" synth, Synthi A, featuring its 256 modulation matrix and its unique EMS-Filter.

Additional features of the VSTi are:

• Full MIDI-implementation such as loading and saving sounds with all parameters.
• Automation of all knobs, pins and the joystick via MIDI-Sysex-data in realtime, patching the full range of MIDI-controllers to the modulation-matrix to play your Synthi Avs via MIDI-keyboard or MIDI-Sequencer.

You can use the Synthi Avs as a VST Instrument and as a VST insert effect, so you can trigger the Synthi Avs by external audio and modulate any external audio by the Synthi Avs.

Synthi Avs costs 350 EUR.