EQ shows activity below low cut?

[Timo]

Could this be connected to this one?

All Cubase EQ plugs produce unwanted noise without reason

Every single EQ in Cubase generates unwanted noise. This includes StudioEQ, GEQs, the channel EQ, and Frequency (if not in lin mode). [grafik] Repro: Create audio channel. Insert TestGenerator. Use Sine, 6000 Hz, -12 dB. Insert EQ plugin (e. g. Frequency). Set the first 4 bands to +12 to +16 dB gain. Don’t use LIN. Insert SuperVision. Select SpectrumCurve. Watch a lot of noise below 1 kHz at -80 dB. If you move SuperVision to a post fader insert slot, you may also watch the channel EQ doin…