Hi Clarence,

OK. Here are a few things to try.

1. Your EP500 Quick Setup guide, says:

"GROUND LOOP:
If your subwoofer is producing a 60 Hz hum; remove the Chassis Ground Screw. If this does not solve the 60 Hz hum, call 1-866-244-8796 or consult the full manual at www.axiomaudio.com/manual_ep500600.html."

There is a diagram in your manual, or it can be found at the web page above, which will show you where the ground loop screw can be found (Step 8). If that doesn't solve the problem, then:

2. Disconnect the incoming cable line from your cable box. If the hum disappears, you can order a VIDEO ISOLATION TRANSFORMER from Parts Express that will solve the problem. If disconnecting the cable feed doesn't solve the problem, then:

3. Try using a 3 to 2 cheater plug, available for under a dollar at you local hardware or Home Depot, on the subwoofer's power cord.

If that solves the problem then try to plug all your equipment into the same circuit. Keep in mind that even if your electrical outlet has two plugs, they could each be on a different circuit. I don't recommend using the cheater plug as a permanent solution (though I've done so many times). Do so at your own risk.

If none of that works, on Monday, pick up your telephone and give the nice folks at Axiom a telephone call. They are exceptionally nice people, and they'll be glad to try to help.

Thanks guys for the help.
After I did my last post I read the instruction manual for the sub and read about that screw. I must have missed it earlier or was not paying attention. I removed that screw and bam just like that all was fine. I just finished listening to disc one of the Eagles and boy it sounds great. I can't wait til I get back from my trip to watch some movies on theses bad boys.

Glad that "we" could help.
Tharkun had a similar ground loop problem. As soon as he took out the screw, hum was gone.



EDIT: On this post I was immediately upgraded to the title of Aficionado. Do I get some kind of award or something? Now I've got to change my sig!

Naw.....no award for "Aficionado" But you can expect to be granted the subtitle of "homesteader" when you hit "Connoisseur", cause you can expect to stay there for quite a long while!

In reply to:

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Do I get some kind of award or something?

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you get to send the other Aficionados an EP500 in the color of choice ill have Boston Cherry thanks.

See you out there in Vegas, pard! Rates are great before Xmas, eh?
I'm leving Tues.

I just got home tonight and I wish you posted earlier. We could have got together to break the bank. Hotel rates no sure what they are I usually get free rooms but this time we stayed at a timeshare condos. Very nice only downside is it was far from the casino's.
I was doing great the first night up about $1500. The rest of the trip I just could not get on any roll at all. Lost that 15 plus another 2. First losing trip in a while. I hope you do better.