Moxica
Maybe. I never understood the english concept of "trim" with confidence. In Norwegian that word do mean something like "cut excess stuff" (Like hair or grass) :)
That's certainly the most common use of the word.
Moxica
But then again, I had a "trim" pot on my old Tascam 244 that allways confused me.
In this case, it relates to trimming the signal.
A lot of mixers have a gain control, which can either boost or lower the input signal.
A trim control is similar, except it can only lower the signal. I guess the word "trim" is used as it's perceived as a less extreme version of "cut".