Sequential OB-6 Keyboard 6 Voice Polyphonic Analogue Synthesiser

The bold, classic Oberheim poly sound – built into a stage-ready keyboard. The Sequential OB-6 Keyboard is a 6-voice analog polyphonic synthesizer created by Tom Oberheim and Dave Smith. Its sound engine is inspired by Tom’s original SEM, with true voltage-controlled oscillators, a 2-pole multimode filter and analog amplifiers, plus modern effects, a sequencer and an arpeggiator.

Why customers choose it

• SEM roots: two discrete VCOs per voice with continuously variable sawtooth and pulse (plus triangle on oscillator 2), hard sync, a square-wave sub-octave and white noise.
• The famous filter: a 2-pole resonant filter per voice that sweeps through low-pass, notch, high-pass and band-pass, inspired by the original Oberheim SEM filter.
• X-Mod: filter envelope and oscillator 2 modulate oscillator 1, its shape and pulse width, filter cutoff and filter mode for dramatic sounds.
• Effects: stereo analog distortion and dual 24-bit / 48 kHz digital effects – reverbs, delays (standard and BBD), chorus, flanger, phase shifter and ring modulator – with true bypass.
• Ready to play: 500 factory and 500 user programs, arpeggiator, polyphonic step sequencer up to 64 steps, unison with chord memory and tap tempo.

Who it is for

Keyboard players and producers who want the big brassy pads, stabs and leads of classic Oberheim synths, on stage or in the studio.

Specifications

Good to know

• Manual switch on = live panel: what you see is what you hear.
• Backlit pitch and mod wheels; pitch range set per program (1 to 12 semitones).
• Walnut end panels.
• USB is class compliant – no drivers needed on Mac or Windows.

FAQ

Is it fully analog?

The voices (VCOs, filters, amplifiers) are analog. The effects are digital, with true bypass so the path stays fully analog when they are off.

Can it sync with my DAW?

Yes. The clock, arpeggiator and sequencer sync to external MIDI clock over MIDI or USB.