Ground Cheater plug or....


Maybe this isn't a good idea, but I thought I'd ask anyway.

I have what I believe to be a persistent ground loop hum from my amplifier. It's quiet, inaudible if music playing or unless you're standing next to the speaker, but knowing it's there is annoying.

I've heard suggestions to use a cheater plug to defeat the ground, but it seems counterintuitive to stick a 35cent plastic plug between expensive cables and power supplies. My question is, couldn't you accomplish the same thing by disconnecting the ground wire in the outlet, and still exact the benefits of better cables?

I'm sure the fire marshall would disapprove, but I'd like to hear what the hi-fi nuts have to say.

Cheers!
grimace
If you believe the cable vendor's explanation of why an expensive three foot cable makes a difference at the end of a power line chain dozens of miles long, then using an inexpensive cheater plug between your ordinary wall outlet and the three foot über-cable should not diminish the impact of the über-cable on your system.
Try the cheater plug and see if that does away with hum,if it does take it off and unplug each component one at a time and see if you lose the hum. This way you can verify what is causing the hum. If it is your amp and it not audible when playing music I would not worry about it.
Someone clearly needs to produce an "audiophile" cheater plug for 50 bucks or so :-)
Here's another option & one I use myself on my CDP. Buy a Volex cord which is very good for around $7 from Newark & cut the grounding pin off w/some stout wire cutters. I do prefer to have my amp grounded. PS Audio & TG Audio sell ungrounded cords I believe.