 In 2010, he announced plans to release the "Son of Four Voice," an updated version of his original Oberheim 4-Voice analog synthesizer.In 2015, Oberheim announced the Two-Voice "Pro", an upgraded and improved version of the instrument he described as his favourite of the company's early years.At the NAMM show of January 2016, Oberheim announced the Dave Smith Instruments OB6, a collaboration with Dave Smith which resulted in Oberheim's first voltage-controlled multi-voiced polyphonic synth since the mid-1980s; Oberheim designed the VCO/VCF part replicating his SEM module, while control features, arpeggiator/step sequencer and effects processing were designed by Smith using his Prophet platform.