NFS

The Serge New Frequency Shifter is another astonishing (re)design by Serge, much improved over his original 1979 version. Actually it is a combination of two new Quadrature Oscillators plus two(!) Frequency Shifters, offering 5 different modes from separate use to true Stereo Processing.

New Quad Oscillator(s)

4 sinewave outputs
Extremely wide frequency range: deep sub audio up to >16kHz
Exceptional tracking over 6+ octaves (typically

https://serge-modular.com/serge_4x4?mod=RS_FRS4X4

This Module is currently available.