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На английската версия на тази страница се появи въпрос за това, как се комбинират стойностите на dBV и на Vrms. Децибелите dBV се събират. Стойностите на Vrms се умножават. Например, -4 dBV = 0.631 Vrms и -3 dBV = 0.708 Vrms. Тогава, -7 dBV = 20 log10(0.447 Vrms) = 20 log10(0.631 Vrms * 0.708 Vrms) = 20 log10(0.631 Vrms) + 20 log10(0.708 Vrms) = -4 dBV + -3 dBV

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