Transformer hum?

It doesn't matter if the dimmer is on the same circuit. Everything is tied together back at the breaker box. The dimmer on the light in my stove hood upstairs made a balanced line conditioner hum in my basement. If you are in an apartment your neighbor may have a dimmer causing the problem. The fact that a flourescent light makes it worse confirms my suspicion that it is noise on the AC line.

Mechanical hum means the piece is vibrating i.e., the hum is not coming from the speakers. Cheater plugs will have no effect on this hum.

Have you tried turning off everything in the house yet?

Mechanical hum happens because the transformer is working a little harder to provide the correct current to the gear.

See if you can borrow an issolation transformer or one of those PS Audio power regenerators (or similar). These will provide the correct current to your gear, and will allow you to hear if the hum goes away.

The above are a solution to mechanical hum. Sometimes though the transformer in this piece of gear will hum a little because it is getting the outside power. Better one than all the gear. It can always be muffled away if this does happen.

Try taking the Anthem completely out of the system. They are notorious for ground loop problems.

>>Have you tried turning off everything in the house yet?<<

Yes. I even turned off the refrigerator. I have plugged
and unplugged, isolated, paired, tried with a component
plugged into the AC Conditioner tried with it plugged into the wall -- all different combos and one at a time. Still hums.

There is one dimmer switch on another circuit. But,
I had that light turned off. Could it cause a hum even
if it is turned off?

Man, I would love it if it were just a matter of replacing
a dimmer switch. On the other hand, I don't know how I
would explain to my wife that we can't have a dimmer in
the dining room. However, I could replace it just to
see if this is the cause -- at least I would have peace
of mind.

Sugar --

Thanks for the suggestion. I would eventually like
to have a few dedicated AC lines run so the amps can get plenty of AC. Why does the transformer hum if it is
working extra hard? Can you explain that further? Also, how does dirty AC make the transformer hum and why doesn't
the AC conditioner, BPT-3.5 -- eliminate the hum when
components are plugged into it?