Do1 - Oberheim Key Knobby -

: Vintage units often require manual calibration of filters and oscillators using trim pots to ensure voices remain in tune with one another.

: The interface encourages "exploratory" synthesis, where users can grab a knob to adjust filter resonance or oscillator frequency in real-time, which is essential for the "creamy" and "honey-like" sounds associated with the brand. DO1 - Oberheim Key Knobby

The "Key Knobby" lineage represents the evolution of polyphony and memory: : Vintage units often require manual calibration of

For users of vintage "knobby" units, maintenance is a recurring theme in deep write-ups: It is often cited as the most reliable

: Introduced advanced software control (Page 2) while maintaining the physical knob-per-function layout. It is often cited as the most reliable and affordable of the classic vintage polys. Maintenance & Longevity

: The first monophonic synth with user-programmable digital memory, breaking the strictly manual SEM paradigm.

The "Oberheim Sound" is defined by its , often contrasted with the "clinical" or "warm" sound of Sequential Prophet-series synths. This is largely due to the use of discrete oscillators and the unique 2-pole multimode filter found in early units.