Oberheim - OB-X8 Module

The Oberheim OB-X8 Module is based on an analogue synthesis architecture built around two discrete VCOs per voice, taken from the dual SEM and OB-X lineage - a total of sixteen independent oscillators for the eight polyphonic voices. Each oscillator offers three waveforms - triangle, sawtooth, square/pulse - complemented by a variable-level white noise source and variable triangle cross-modulation between oscillators, allowing textures ranging from stable pad to complex modulated sound. The Vintage Knob introduces slight voice drifts that give the sounds their natural analogue breath.

Signal processing is based on the Curtis OB-Xa/OB-8 4-pole ascending low-pass filter, with additional high-pass, band-pass and notch modes to extend spectral possibilities. Envelopes modelled on three generations - OB-X, OB-Xa and OB-8 - respond to velocity and aftertouch on the mono channel, making playing directly expressive. Polyphony is extendable via polychain to 32 voices and variable unison from 1 to 8 voices. The bi-timbral Split/Double mode with programme-programmable pan lets you use two timbres simultaneously on a single module.

In practical terms, the OB-X8 Module incorporates a synchronisable clock arpeggiator with selectable divisions, compatible with any MIDI setup or DAW via its MIDI In/Out/Thru sockets and bidirectional USB. The 600 memory locations, including 400 factory programmes, cover the three historical generations. The high-resolution OLED display, classic pitch and mod levers, function-specific knobs and MPE compatibility ensure precise control in the studio and live on stage. The walnut side panels complete the chassis of this 4.35 kg desktop, which measures 559 × 216 × 102 mm.