The iconic Oberheim SEM filter recreated with modern enhancementsFilter SEM brings the legendary sound of the Oberheim SEM (Synthesizer Expander Module) filter to your DAW. Originally released in 1974, the SEM's state-variable filter became renowned for its warm, musical character and unique 12dB/octave slope that set it apart from other synthesizers of the era.This software recreation captures the authentic analog warmth and smooth response of the original hardware while adding modern features for today's production needs. The SEM filter's distinctive sound has been heard on countless classic recordings and continues to be sought after by producers and sound designers worldwide.Classic Analog CharacterExperience the same filter topology that made the Oberheim SEM a studio legend. The 12dB/octave state-variable design offers lowpass, highpass, bandpass, and notch filtering modes, each with the characteristic smoothness that defined the original hardware.Features Authentic Oberheim SEM filter emulation 12dB/octave state-variable filter design Multiple filter modes: lowpass, highpass, bandpass, notch Warm analog character and smooth response Modern workflow enhancements Precise parameter control Low CPU usage Resizable interface