Answer
Aug 28, 2025 - 03:47 PM
To check the RMS (Root Mean Square) power of an amplifier, you typically need a multimeter and a test tone. First, play a 1 kHz sine wave test tone at a known volume and connect the multimeter set to AC voltage across the amplifier's output terminals. Measure the voltage, then use the formula \( \text{RMS Power} = \frac{V^2}{R} \), where \( V \) is the measured voltage and \( R \) is the speaker's impedance, to calculate the RMS power.
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