Enter the RMS power and the conversion factor into the calculator to determine the PMPO power. This calculator helps to estimate the Peak Music Power Output (PMPO) from the Root Mean Square (RMS) power of an audio amplifier.
RMS to PMPO Formula
The following formula is used to calculate the PMPO power.
PMPO = RMS * CF
Variables:
- PMPO is the Peak Music Power Output (Watts)
- RMS is the Root Mean Square power (Watts)
- CF is the conversion factor (unitless)
To calculate PMPO, multiply the RMS power by the conversion factor. The conversion factor varies depending on the manufacturer and can range from 4 to 20 or more. It is important to use the correct conversion factor for accurate results.
What is RMS Power?
RMS power, or Root Mean Square power, is a measure of the continuous power that an audio amplifier can deliver. It is a more realistic measure of an amplifier’s capabilities than PMPO, as it reflects the amplifier’s average power output over time.
What is PMPO?
PMPO, or Peak Music Power Output, is a marketing term often used by manufacturers to denote the maximum power an audio device can produce in short bursts. It is typically much higher than the RMS power and can be misleading if used as the sole indicator of an amplifier’s performance.
How to Calculate PMPO?
The following steps outline how to calculate the PMPO.
- First, determine the RMS power (RMS) of the amplifier in watts.
- Next, determine the conversion factor (CF) provided by the manufacturer or use a standard value.
- Next, gather the formula from above = PMPO = RMS * CF.
- Finally, calculate the PMPO power in watts.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
RMS power (RMS) = 50 watts
Conversion factor (CF) = 10
