Columns Retired Columns & Blogs |
Loudspeakers Amplification | Digital Sources Analog Sources Featured | Accessories Music |
Columns Retired Columns & Blogs |
Loudspeakers Amplification Digital Sources | Analog Sources Accessories Featured | Music Columns Retired Columns | Show Reports | Features Latest News Community | Resources Subscriptions |
Searching out and killing a ground loop when you aren't in the room to hear what happens when changes are made is difficult. The first thing to decide is whether you have a "hummmmmmm" or a "buzzzzzzz". In either case, I would first do some housekeeping. Clean all your connections and change out cables if they seem suspect. Swap cables from one source to another to test the connection. If you haven't been doing at least annual house cleaning on your system, this could easily be the culprit. If not, let us know the results after you've cleaned and retightened all connections and swapped cables to find any bad plugs or wires.
At this point do not make a ground connection from chassis to chassis. The idea is correct, but with conventional interconnects you will create the potential for even more problems by having too many grounding points. Do the cleaning first.