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Audio coupling capacitor removing DC - Electrical ...
https://electronics.stackexchange.com/questions/491051/audio-coupling-capacitor-removing-dc
You have an AC signal imposed on a DC offset. When you pass that through the capacitor, you lose the polarization - which side of the capacitor is …
Single-ended DC offset?? | diyAudio
https://www.diyaudio.com/community/threads/single-ended-dc-offset.314244/
A capacitor cannot turn DC to AC. <snip> Greg A varying DC voltage is by definition an AC voltage when you remove the DC offset which is easily done with the aforementioned blocking capacitor as is found in single supply solid state amplifiers, PP or otherwise. A transformer can also be used as is often the case in SE tube amplifiers.
What is DC Offset? | Steve Hoffman Music Forums
https://forums.stevehoffman.tv/threads/what-is-dc-offset.50585/
If there is 1 volt DC offset, the center point will be above the zero point. In audio circuitry, a series capacitor is often used between stages to eliminate the dc offset. Of course there are now other ways of eliminating offset than series capacitors. DC will not pass through a capacitor, but signal will.
What is DC offset? - Quora
https://www.quora.com/What-is-DC-offset
DC offset is constant deviation from intended value. It can be positive or negative. Example: A capacitor is used to remove DC offset to couple multiple stages of AC amplifier. Sometimes DC offset is purposely added or subtracted for the calibration in instrumentation amplifier.
DC offset | Electronics Forum (Circuits, Projects and ...
https://www.electro-tech-online.com/threads/dc-offset.27877/
DC offset is just that, the positive or negative DC voltage that's still being outputted when there is no signal applied. Too much DC offset will cause both distortion and heating in the speakers voice coil. Capacitive coupling is the most common way to getting rid of DC bias, however it also kills bass responce.
Coupling Capacitors
https://sound-au.com/articles/coupling-caps.htm
A capacitor is mandatory for these because they have a 2.5V DC offset, and if this is not removed completely, most DC connected preamps will simply saturate - the output voltage will be 2.5V multiplied by the preamp's gain. A gain of only 6 times (16dB close enough) will convert the 2.5V into the full 15V maximum output from the preamp.
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