Formant: pro custom-built by JVR

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via this Vemia listing

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"This is a custom built synth made for me by Jos Van Ras who is an ex-Phillips engineer in the Netherlands who builds Elektor modules and cases.

The synth consists of the following modules: 3 x VCO - very powerful VCOs with a Moog vibe and unlike most Elektors, these have Sync inputs and the sync sound is really powerful. 3 x VCF - 3 different VCFs, two based on the original Elektor designs (a 12dB multiode filter, and another filter switchable between 24/18/12/6 dB/octave with LP and HP outputs) and a third based on the Steiner Parker filter which is really nice sounding. 1 x triple LFO - 3 simple LFOs without voltage control but with a variety of waveshapes. 1 x NOISE / RANDOM VOLTAGE 4 x ADSR 2 x VCA 2 x MIXER 1 x quadruple MULTIPLES 1 x RING MOD 1 x S&H / Inverter 1 x COM which is an output module with a 3 band EQ which is surprisingly useful 1 x MIDI to CV converter

This synth offers tremendous bang for the buck, I think it gives quite a Moog feeling in sound. It contains everything you need for a great variety of sounds but you can always patch it with Eurorack or other modular gear. I will post some sound examples as there aren't many good demos online.

The negatives are that the cabinet is just functional MDF, no fancy timber, and the MIDI interface is very basic. I usually use a Kenton for more complex MIDI control."