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Output Power of Audio Amplifier
https://amplifier.cd/Tutorial/Power/output_power.htm
With hifi the amplifier power output is measured by alternating voltages. Measuring with DC voltage everything would be simpler. Measuring with DC voltages is not possible. Most audio amplifier does not transfer DC voltages.
Power Amp Output: AC or DC? | GroupDIY Audio Forum
https://groupdiy.com/threads/power-amp-output-ac-or-dc.61933/
Audio is AC so amplifier output is amplified AC. That AC output "could" have small inadvertent DC content but is dominantly AC. Crown made one amplifier model decades ago called the DC300 that had response down to DC and if you put DC voltage into it, DC comes out.
Are Speakers AC or DC? Here’s The Truth – Stamp Sound
https://stampsound.com/are-speakers-ac-or-dc-heres-the-truth/
The straightforward answer to this question is that all speakers produce audio using AC. This AC power is provided by the amplifier. The amplifier itself runs on DC supply, but this is not directly supplied to the speakers. Therefore speakers are classed as being AC devices.
Is an amplifier's speaker output AC or DC? - Answers
https://www.answers.com/Q/Is_an_amplifier%27s_speaker_output_AC_or_DC
AC or DC - How headphones and amps work! | Headphone ...
https://www.head-fi.org/threads/ac-or-dc-how-headphones-and-amps-work.649016/
If your amplifier has a 50V power supply, the amplifier output has to sit at 50/2, or 25V. Now the AC signal can swing above and below this 25V reference voltage. This means that the amplifier will clip evenly as the output approaches max. So now we have +25 volts DC at the output of the amplifier. That would not be any good for speakers.
Speaker Output from Battery Radio: AC or DC? | …
https://audiokarma.org/forums/index.php?threads/speaker-output-from-battery-radio-ac-or-dc.889992/
Audio is an AC signal: it wiggles up and down. The battery (DC) powered amplifier amplifies the small AC signal into a bigger AC signal. The amplified AC signal drives the speaker. It appears you are getting confused by AC and DC power circuits (e.g. AC mains supply).
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