The Sequential OB-6 Module is an analogue desktop synthesizer featuring a 4-octave keyboard with velocity and aftertouch, and 500 user and 500 factory programs in 10 banks of 100 programs each. The OB-6 desktop module has all of the same controls as the keyboard version and provides the same immediacy and ease of use. All parameters are at your fingertips, with full-sized knobs and switches and a comfortable, intuitive layout.
The OB-6 desktop module takes the Tom Oberheim sound with its true voltage-controlled oscillators, 2-pole filter, and amplifiers, and adds modern enhancements such as studio-quality effects, a polyphonic step sequencer, an arpeggiator, and more. The OB-6 sound engine features two discrete voltage-controlled oscillators (plus sub-oscillator) per voice with continuously variable waveshapes (sawtooth and variable-width pulse, plus a triangle wave on oscillator 2). The classic Oberheim-inspired 2-pole, state-variable, resonant filter provides low-pass, high-pass, band-pass, and notch functionality. Voltage-controlled amplifiers complete the all-analogue signal path.
The dual effects section provides studio-quality reverbs, delays (standard and BBD), chorus, flangers, and faithful recreations of Tom’s original phase shifter and ring modulator. While the effects themselves are digital, with 24-bit, 48 kHz resolution, a true bypass maintains a full analog signal path.
Solid build. Musical filter. Easy to program. Sounds great if you’re after a modern Oberheim poly analog sound. I chose it because it has raw quality and simplicity which make it intuitive to use. Highly recommended!