Doepfer A-143-9 QLFO VC Quadrature LFO/VCO dj-controllers Classic Sallen-Key topology with tube

Classic Sallen-Key topology with tube saturation and clipping

Function: Sequencer Switch

16 programmable tracks with nine patterns per track

plus an unprecedented 4 separate voltage options

Doepfer A-143-9 QLFO VC Quadrature LFO/VCO dj-controllers Classic Sallen-Key topology with tubeThe Doepfer A 143 9 is a voltage controlled quadrature LFO and sine wave oscillator capable of generating four phase related outputs simultaneously. Based around a precision quadrature circuit, it produces exceptionally clean sine and cosine waveforms with very low distortion, making it useful for modulation duties, frequency shifting applications, and experimental audio rate patching. The module provides four outputs spaced 90 degrees apart: Sine (0)