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Oberheim | 2 Voice TVS Pro


Tom Oberheim's Two Voice Pro Synthesizer is the modern incarnation of his classic Two Voice Synth of the mid-'70s. Still sporting 37 keys, the Two Voice Pro is fitted with - as Tom puts it - "very interesting" upgrades. Of course, you get the essence of what made the original Two Voice a favorite of Tom's, including two classic SEMs (Synthesizer Expander Modules) with a total of four oscillators, a bevy of modulation options, and a mini-sequencer that lets you store your sequences in flash memory. 

Tom Oberheim Two Voice Pro Synthesizer at a Glance:

• It all started with the SEM 
• Update of a classic synth 
• About those "very interesting" upgrades...

It all started with the SEM

The Oberheim Two Voice Pro has an interesting back story. It all started with Tom Oberheim's original SEM (Synthesizer Expander Module), a surprisingly powerful beast with two oscillators, two envelopes (one each for filter and volume), an LFO, pulse width modulation, and a gorgeous-sounding multimode filter with a unique sweep mode. When Tom started building instruments with multiple SEMS, the first polyphonic synthesizers were born. The Two Voice (incorporating two SEMS) gave musicians four oscillators per key for a decidedly fat analog sound. The Two Voice could play up to two separate pitches simultaneously. Back in the day, this was impressive, indeed. 

Update of a classic synth

Like the mid-'70 original, the Oberheim Two Voice Pro is, in reality, two classic Synthesizer Expander Modules sharing the same chassis with a three-octave (C-to-C) aftertouch-enabled keyboard - giving you four oscillators and enough modulation mojo to whip up some serious tone. What's more, each module (both SEMs, mini-sequencer, keyboard control) gives you over 50 mini-jack patch points. A cool bonus is that you can play two sequences simultaneously, or play one sequence while playing the keyboard - just like the old original Two Voice.

About those "very interesting" upgrades...

The Oberheim Two Voice Pro sports an enhanced mini-sequencer. Just as with the original Two Voice, you still generate a sequence using the knobs (up to 16 positions), however now you can store sequences from the knobs into flash memory (up to 99 sequences)! After you store your sequences, you can edit them to add 2-way, 3-way or 4-way ratcheting. You can also program the gate length from zero, almost up to the complete step length - creating some enticing musical compositions in the process. The best part? Your music is juiced with warm, fat analog sound.

Tom Oberheim Two Voice Pro Synthesizer Features:

• Recreation of a '70s analog classic synth - with modern updates 
• Two classic Synthesizer Expander Modules (SEM) 
• SEMs are 100% discrete analog - no custom chips 
• Two MIDI-sync-capable LFOs per voice, with multiple waveshapes including sample and hold 
• Two programmable ADS envelope generators per voice 
• Selectable master tuning (each VCO or VCO2 only) allows easy detuning for huge unison sounds 
• Enhanced onboard mini-sequencer
• Store sequences in flash memory (up to 99 sequences) 
• Sequences can be chained into songs 
• Each song step can be programmed for sequence number, transpose amount, and number of repeats 
• Sequencer syncs to MIDI clock 
• Keyboard outputs velocity and aftertouch 
• Each module (both SEMs, mini-sequencer, keyboard control) sports over 50 mini-jack patch points
• Pitch and modulation wheels, pan pots, headphone output 
• Separate LFO for vibrato 

Get your hands on a modern classic synth - the Tom Oberheim Two Voice Pro!
Model2 Voice TVS Pro
Engine TypeAnalog
Voices (max)2
LFO1 Triangle
Engine Detailed2 VCO's (per voice) with sawtooth or variable-pulse waveforms
Filter (VCF)Lowpass filter with cutoff and resonance. Can be modulated by the LFO, envelope or external sync
Envelope (VCA)2 ADR (Attack, Decay and Sustain) Envelope Generators
SequencerMini Sequencer (with 8 steps and 2 voices), up to 99 sequences
RecordingSequences can be chained into songs
Key typeKeys
AudioStereo O
Legend: Obvious Y: Yes, N: No, N/A: Not Applicable
VCO Voltage Controlled Oscillator DCO Digital Controlled Oscillator
LFO Low Frequency Oscillator Sub Sub Oscillator
VCF Voltage Controlled Filter VCA Voltage Controlled Amplifier
Velocity As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. Aftertouch Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel.
Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise.

Manuals, patches etc.


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