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Floating ground/common ground | diyAudio
https://www.diyaudio.com/community/threads/floating-ground-common-ground.302123/#:~:text=Most%20hi-fi%20amplifiers%20do%20not%20use%20a%20floating,high%20as%20you%20want%2C%20it%27s%20not%20generally%20needed.
Floating ground/common ground | diyAudio
https://www.diyaudio.com/community/threads/floating-ground-common-ground.302123/
2017-01-14 8:20 pm. #6. Most hi-fi amplifiers do not use a floating ground (BTL output), no - you would generally find a good Ohmic connection between speaker negative, input ground and chassis. Since mains transformers mean supply voltages can easily be made as high as you want, it's not generally needed.
Floating Ground Adapter for Car audio line level signal ...
https://www.diymobileaudio.com/threads/floating-ground-adapter-for-car-audio-line-level-signal.336585/
Bose/Audi designed the system to use a single common between the head unit line out and the Bose amplifier line input, so it is four wires (FR+, FL+, RR+, RL+, Common) with the common not tied to ground, it is a floating common. However, new car audio electronics use a common that is tied to ground, with both the head unit and external amplifiers tying the ground …
audio - DIY simple line out converter for "floating ground ...
https://electronics.stackexchange.com/questions/27534/diy-simple-line-out-converter-for-floating-ground-car-head-unit
For a standard push-pull output, connect pin 2 to unbalanced input, pin 1 to input ground and leave pin 3 floating, do not attach it to ground (with a standard push-pull output it may cause overheating of the drive IC)
Phono grounding when using integrated w/ floating ground?
https://forum.audiogon.com/discussions/phono-grounding-when-using-integrated-w-floating-ground
Not necessarily. If there is no chassis ground, and the live and neutral are isolated by the power transformer in the amp, then there is no safety ground or direct path to true ground. The manufacturer has ensured the amp is double insulated and does not require a safety ground. In your set up, the amp would be grounded through the turntable ground wire only; thereby …
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