![Why do some audio amplifiers connect the power ground to the signal ground? - Electrical Engineering Stack Exchange Why do some audio amplifiers connect the power ground to the signal ground? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/0LArT.png)
Why do some audio amplifiers connect the power ground to the signal ground? - Electrical Engineering Stack Exchange
![Earthing & Ground Explained – Also Chassis Ground, Signal Ground, Ground for Schematics, & More « Adafruit Industries – Makers, hackers, artists, designers and engineers! Earthing & Ground Explained – Also Chassis Ground, Signal Ground, Ground for Schematics, & More « Adafruit Industries – Makers, hackers, artists, designers and engineers!](https://cdn-blog.adafruit.com/uploads/2017/04/earthground.png)
Earthing & Ground Explained – Also Chassis Ground, Signal Ground, Ground for Schematics, & More « Adafruit Industries – Makers, hackers, artists, designers and engineers!
![An Introduction to Ground: Earth Ground, Common Ground, Analog Ground, and Digital Ground - Technical Articles An Introduction to Ground: Earth Ground, Common Ground, Analog Ground, and Digital Ground - Technical Articles](https://www.allaboutcircuits.com/uploads/articles/Davis_ground_2.jpg)