How the input trim works

Modified on Fri, 08 Sep 2023 at 02:16 PM

An input trim knob (or fader) is a “one-knob” internal gain staging control that automatically links the input and output gain stages with an inverse law. In this way, you can control the amount of non-linear distortion without constantly adjusting the input and output gains.

Note that trim input is different from a standard input gain control due to the inverted linked output gain stage, which always ensures that whatever gain change is introduced at the plug-in input, the output level is automatically compensated so that there is no perceived level change.

When a positive value is selected, the set amount in dB brings up the signal entering the plug-in, and the plug-in emulation will operate at a higher internal level. This will result in higher harmonic distortion levels. Contrary to this, negative values will result in lower internal operational and harmonic distortion levels.


The Acustica Audio single point of contact (SPOC) is the Acustica Audio help-desk portal. In order to access to Audio help-desk portal go to the Acustica Audio website and then to the support section. We do not provide help, assistance, or support via social networks, public forums, or through our email accounts.

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