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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. Like all audio-related questions, there’s plenty more to explore on ...
Output Power of Audio Amplifier
https://amplifier.cd/Tutorial/Power/output_power.htm
Most audio amplifier does not transfer DC voltages. The background for it is that a woofer coil can be easily destroyed by DC voltage, therefore is in such a way designed the amplifiers that DC voltage is not amplified. Meaning of the output power for an audio amplifier
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.
noise - Why do some audio amps use AC while others use DC ...
https://sound.stackexchange.com/questions/46399/why-do-some-audio-amps-use-ac-while-others-use-dc
The AC cabling inside the amplifier that leads to the AC-DC conversion unit (either a transformer or an electronic converter) can act as a transmitter, potentially inducing e.g. a 50/60 Hz hum into the audio path, so you have to put shielding …
Is an amplifier's speaker output AC or DC? - Answers
https://www.answers.com/Q/Is_an_amplifier%27s_speaker_output_AC_or_DC
The capacitor is used to block DC bias from the output, so that only the AC signal is passed. In an audio amplifier, for instance, unwanted …
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