FabFilter User Forum

Question about Pro-Q4: auditioning/solo mode on a low cut filter

Hi there, I'm evaluating Pro-Q4.

When in solo/audition mode on a low cut filter, moving the mouse up/down doesn't seem to adjust listening level as it does when auditioning bell or bandpass filters. The tooltip and manual claims that it does. Am I missing something?

Michael Shapiro — Jun 26, 2026

Hi Michael,

Moving up or down when auditioning will only change the gain when you use a shape that actually has a gain function. Since HPF/LPF filters don't have a gain you can not adjust their volume while auditioning.

Ralph (FabFilter) — Jul 2, 2026

Thank you for clarifying!

Michael Shapiro — Jul 2, 2026

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