Unsteady SPL Readings


My subwoofer does not produce a steady SPL reading, unlike my other speakers which only fluctuate by 1db. Any ideas what the problem is?
gchuva

Showing 1 response by jeffreybehr

What are you feeding it with?

The filtered-noise signals most of us use for level matching start as RANDOM noise. Even on the extra-slow setting of my analog meter, which already is easier to read in a dynamic situation than a digital meter, the reading must be averaged.

Only a sinewave would give you a rock-steady reading, but they're highly subject to peaks and dips in response.
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