Oberheim Two Voice Pro (2015–2018)
The Two Voice Pro is Tom Oberheim's modern version of his 1975 Two Voice. That instrument hard-wired two SEM modules to a compact keyboard and a simple analog sequencer, and it gave Oberheim his instant success in the 70s. The Pro was announced at NAMM 2015 and produced through 2018. It keeps the original idea and adds a digital sequencer, MIDI, and a comprehensive patch panel for interfacing with modular setups.
Inside are two SEM PRO modules, each a 100% analog synthesizer voice. The SEM modules "haven't really been changed at all," per a GreatSynthesizers review, which is the point. The Oberheim sound and its MultiMode filter are still there. The changes are in the sequencer and performance departments. The keyboard is a pleasure to play, with velocity and aftertouch routable to the filter and amplifier. The whole instrument is compact, flexible, and easy to use, and it sounds fantastic in the studio and on stage.
The same GreatSynthesizers review was candid about the compromises. The small, wobbly knobs on the left side of the instrument, including the SEM volume controls, were criticized as not state of the art, especially for a €4,000 instrument. The onboard sequencer was called "a tiny bit complicated to use" and not very flexible. One reviewer went so far as to say you could do without it. There's also a quirk: you must select SEQ mode for both SEMs to get any sequencer CV from the patch panel.
Despite those gripes, the Two Voice Pro remains one of the most desirable modern analog synths. GreatSynthesizers called it "THE hype American mono/duophon analog synth," noting its flexible, noble sound and exceptional quality. The original Two Voice was one of the most celebrated synthesizers of all time, and the Pro makes the instrument far more practical for contemporary studios. Used prices have climbed well above the original $3,495 asking price.
Known Specifications
- 2x SEM modules (SEM A / SEM B), each a true analog voice
- 4 VCOs, 2 MultiMode VCFs, 4 ADSRs, 2 LFOs, 2x sample/hold, 2x portamento
- 2x 16-step sequencers with 50 memory locations for sequences and 9 for songs
- 3-octave keyboard with velocity and aftertouch
- Pitch wheel (programmable 1–12 semitones) and freely routable modulation wheel
- MIDI In/Out/Thru, Audio In (2x), CV/Gate Out for both SEMs, stereo Audio Out
- Original price: $3,495 USD / €4,000 Europe
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