I didn't have a hum issue. I have been reading reviews of grounding boxes (e.g., Entreq) for several years and wouldn't try them because of the cost. Since the effects of the Gutwire cable described in the review sounded similar to the improvements reviewers have attributed to the Entreq boxes I gave it a try.
The cable can be attached to any unused input and can be ordered with rca, xlr, or spade connector (for components with a chasis ground connection). There is no AC current involved - only the grounds on the input and AC connectors are wired.
The cable can be attached to any unused input and can be ordered with rca, xlr, or spade connector (for components with a chasis ground connection). There is no AC current involved - only the grounds on the input and AC connectors are wired.