PMPO Formula:
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Definition: This calculator converts continuous RMS (Root Mean Square) power to PMPO (Peak Music Power Output), a marketing specification for audio equipment.
Purpose: Helps compare amplifier power ratings and understand manufacturer specifications.
The calculator uses the formula:
Where:
Explanation: PMPO represents very short-term peak power handling, while RMS indicates continuous power output.
Details: RMS power is a more reliable indicator of amplifier performance, while PMPO is often used for marketing purposes with less strict measurement standards.
Tips: Enter the RMS power in watts and manufacturer factor (default 15). All values must be > 0.
Q1: Why is PMPO higher than RMS?
A: PMPO measures very short peaks (milliseconds) while RMS measures continuous power, so manufacturers multiply RMS by a factor (10-20x) to get PMPO.
Q2: What's a typical manufacturer factor?
A: Most manufacturers use factors between 10-20, with 15 being a common average value.
Q3: Which is more important - RMS or PMPO?
A: RMS power is more meaningful for actual performance, while PMPO is more of a marketing specification.
Q4: How do I find the RMS power of my amplifier?
A: Check the technical specifications (not marketing materials) or measure with an oscilloscope and multimeter.
Q5: Is PMPO standardized?
A: No, PMPO measurement methods vary between manufacturers, making direct comparisons difficult.