Axiom Home Page Forums General Discussion Technical Questions Running two sets of mains

Cava,

It's much harder to detect small increments or decreases in loudness using single-frequency test tones. A pink-noise signal simulates a typical music signal much better, and it's a more critical test signal for loudness levels.

Some types of music make it easier to detect slight increases. But by definition, a 1-dB step is "barely detectable".
I was just being my usual obsessive self. . .ha.