FabFilter User Forum
Fabfilter Q3 does not affect the sound
When using Fabfilter Q3, it does not affect the sound when cutting frequencies. When emphasizing the frequencies, the sound changes, but that doesn't sound right either. I have reinstalled Q3 and restarted the machine, no change.
My setup is Ryzen 3900, Cubase 12 and Apollo Twinx.
aapeli — Dec 28, 2022
Could it be you are using the VST2 version of Pro-Q 3 on a mono track in Cubase? There is an issue with the audio routing with the mono VST2 version, where the input is going straight to the output parallel to the signal passing through the EQ. So every EQ move you make is parallel. Solo'ing a band will only solo the signal going through the EQ, but the other signal will be audible as well.
We've reported this issue to Steinberg many times, but since they will abandon VST2 soon I'm afraid they will not fix it. Please use the VST3 version instead, which works as it should. You can recognize the VST3 version by the /// symbol next to its name. Also the VST3 version is simply called "Pro-Q 3", where the VST2 version is called "FabFilter Pro-Q 3".