What is DC offset on the AC power line?


I realize this question may be more appropriate in the miscellaneous section so please accept my apologies in advance. This may be somewhat amp related though, as in "don't use it with an amp".  

Can someone comment as to the pros/cons of a  DC offset suppression device, such as Emotiva CMX-2.

https://emotiva.com/products/accessories/cmx-2

I haven't seen this feature in other power strips and/or surge suppressors.

Thanks.


128x128gdhal

Showing 1 response by janewyman

Hope this has not been mentioned earlier.  I had a hum in a Bryston 4ss2, called Bryston, they would get back, blah, blah, blah.  I went online and found a post where the OP suggested testing how tight the transformer was bolted to the chassis.  Not real tight, just good and snug.  I took the cover off the amp and used a wrech to see how tight the bolt was torqued for a reference.  It was not even finger tight, so I snugged the bolt down and the noise is gone.  Easy fix, no thanks to Bryston.