Dirty AC Power? Where To Lay The Blame For System Noise Problems
Replacing myth and misinformation with knowledge and clear understanding
Replacing myth and misinformation with knowledge and clear understanding
Defining causes and solutions for ground noise that can impact audio systems…
Sources of EMI that can degrade performance, and ways to avoid problems…
Although ground loops often involve power line safety ground connections, disabling them is both highly dangerous and illegal…
Finding and eliminating noise coupling where it actually happens
Replacing myth, misinformation, and mystery with knowledge and clear understanding
Although hum and other problems are often blamed on “improper grounding,” in most cases there is actually nothing improper at all.
The problems fall into two broad categories
Actual performance in a real system depends on how the driver, cable, and receiver impedances interact
Two key issues: different signal operating levels between consumer and professional equipment, and making connections while avoiding ground loop problems