It's always the little things that matter (3 prong to 2 prong_ (1 Viewer)

[Joseph S]

Well today I received my SVS 20-39 CS and Samson S700 combo packaged nice and safely. (Though it was missing one of the front rack mount "L" brackets in the box.)

When I set it up all of the speakers plugged into the Denon 3802 began humming like a swarm of bees. Simply removing the RCA connector from the Sub Preout eliminated the hum, but meant the sub wasn't connected at all. However, thanks to some of the 1000 posts that came up in my searches I learned of the "Cheater Plug" theory.

It seems that no matter how much money I have invested in my system, it will not work without the Home Depot 3 prong to 2 prong adapter.(SKU 07847752) I'm pleased to say that this 50 cent item has saved yet another HT from the Samson amp hum issue.

Thanks for the search engine and the previous responses.

 

[gene avallon]

save me a lot of searching please.what is the cheater plug theory?

thanks

gene

 

[Phil A]

Many times when one hooks up multiple devices there ends up being a ground loop problem and you get a 60HZ hum. I hooked up a sub to my rears with its own built in electronic crossover and had the same problem and solution.

 

[Wayne A. Pflughaupt]

Folks, the safety ground is there for a reason. While lifting it will eliminate a ground loop, it is best to track down and solve the problem.

Regards,

Wayne A. Pflughaupt

 

[Everett A]

And how do you do that?

Waiting for my samson/20-39 combo so just wondering...

 

[Wayne A. Pflughaupt]

And how do you do that?

Specifically what...

 

[Everett A]

Sorry!
How do you track down the source of the hum, and then once you find it, how do you fix it?
I have no electronics background as you can tell..