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Audio power - Wikipedia
https://en.wikipedia.org/wiki/Audio_power#:~:text=Typically%2C%20an%20amplifier%27s%20power%20specifications%20are%20calculated%20by,distortion%20%28THD%29%2C%20usually%201%25%2C%20into%20specified%20load%20resistances.
Audio power amplifier measurements, Part 2
https://www.ti.com/lit/an/slyt128/slyt128.pdf
of the filter-free class-D APAs. DMM1 is used to measure VS at the APA power pin. The generator injects a small sine wave signal onto the power bus, and the audio analyzer measures this ac voltage at the APA power pin and at the k V SVR V OUT ac S = 20log PSRR V V OUT dc S = 20log ∆ ∆ output. Here the analyzer, an Audio Precision System–II,
Guidelines for Measuring Audio Power Amplifier …
https://www.ti.com/lit/pdf/SLOA068A
audio power amplifiers (APAs) using prefabricated evaluation modules (EVMs). The primary equipment used for the measurements consists of the System Two™ audio measurement system by Audio Precision™, a digital multimeter (DMM), and a DC power supply. Contents
Measuring Amplifier Power | Bittner Audio Int. – English
https://www.bittner-audio.com/en/information/measuring-amplifier-power/
Therefore, most manufacturers decided to publish their data according to the following “real-world” testing procedure: the maximum output power of an amplifier will be measured with a 1 kHz sine wave with a 33.3 ms on-time followed by 66.6 ms off-time.
Audioholics Amplifier Measurement Standard | Audioholics
https://www.audioholics.com/audio-amplifier/basic-amplifier-measurement-techniques
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