Buy this Gizmo!
I recently bought an expensive botique tube amp. I couldn't wait to use it with my Fender Strat. Once plugged in the sound was agonizing. Hum, cracking, etc. I read all of the stuff on-line about ground loop issues with single coils, shielding the guitar ( copper tape around the outside of the pick-ups, pick guard, etc.) I thought before I commit to doing that I would see if there was anything out there might address the issue. Googled the Electro-Harmonix Hum Eliminator and other products that are probably very good, but twice the cost of the EBTECH Hum X. I was skeptical thinking a $50.00 product would solve the problem, but went to GC, picked one up and plugged into the wall, crossed my fingers, turned on the amp, and buzz and hum was gone. If your problem is ground loop, thn this should work for you very well.