Summit Posted January 6, 2018 Share Posted January 6, 2018 Transformer hum coming from audio components is most likely DC offset. External DC offset coming from the mains power is hard to cure. DC blockers can make a difference, but can cause other SQ problems. tmtomh 1 Link to comment
Summit Posted January 8, 2018 Share Posted January 8, 2018 DC offset is the result of an electric asymmetry that do not equally load the AC positive and negative sine wave crating a DC offset. Big electrical motors and switching PSU are often the worst offenders. http://www.jenving.com/products/view/dc-blocker-md01-16-eu-3024000378 Link to comment
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