A probably, this may help:
With speaker measurement, its recommended & I’ve always used C weighting for testing speakers in room. Its what is shown in www & magazine test response graphics.
A-Weighting follows a curve that represents the human hearing range & sensitivity.
C-Weighting represents human hearing at higher volume where we become more sensitive to the lower frequencies.
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I’ve written ‘C weighting, Slow response’ on the instruction booklet that lives with my dB meter because I grew weary of forgetting and having to Google it afresh every time!
Thanks, @Mike-B, for reminding me why C is preferred!
Mark
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