* three separately programmable independent audio oscillators (8 octave range, approximately 16 - 4000 Hz)
* four different waveforms per audio oscillator: pulse (with variable duty cycle), sawtooth, triangle, noise. Multiple waveform types may be selected simultaneously, which produces certain complex/combined waveforms.
* one multi mode filter featuring low-pass, high-pass and band-pass outputs with 6 dB/oct (bandpass) or 12 dB/octave (lowpass/highpass) rolloff. The different filter-modes are sometimes combined to produce additional timbres, for instance a notch-reject filter.
* three attack/decay/sustain/release (ADSR) volume controls, one for each audio oscillator.