Phase distortion oscillator, two wave selectors with eight waveforms each and modulation depth. Sub, bass and normal octaves. Can be altered by one of sixteen different preset waveshapers. A separate sub osc can be set equal to or one octave lower than the main oscillator and can enter the signal chain pre or post filter. Two filters: Moog type and Low pass. Variable envelope amount with controls for attack, decay and sustain. Amp section with control of attack, decay and sustain. Audio trigger section consists of only two knobs, (Gate) which sets the gates strength (Decay) which sets the gates time to re-trigger. (Please read the manual) 128 presets to get you started.