Doubling the power output from a speaker emitting a single frequency will result in what increase in loudness?
A) 0.33 dB
B) 3.0 dB
C) 4.8 dB
D) 9.0 dB

Question

Quizplus · Accepted Answer

Doubling the power output results in a 3 dB increase in loudness according to the acoustic power formula, which states that the perceived loudness is proportional to the logarithm of the sound power level, with a doubling of power resulting in an increase of 3 dB. Therefore, the correct choice is B.

Doubling the Power Output from a Speaker Emitting a Single