Originally Posted by garciab
Strange indeed...as Bill said, you must have some major source of em in the area. And I assume this just started, or are the speakers new to the room? It's gonna take some experiments to find the source, and even more to see if there's a cure. But do keep us posted as you go. I'd start by removing the midrange driver, disconnect it, check for hum with it free standing, then checking for voltage on the terminals.
Funny you say that...
Had a friend come over to try and make logic of this...we can't
Took the speaker out of the room and NO HUM
Put left speaker on the right side and it hums.
Took 2 tower speakers and placed it same place and they ALL hum!!!
There is something weird about this corner.
A little info about this right corner.
In the back of the right side wall and the front wall is earth. That's right earth! In the back of these 2 foundation walls is front yard and balcony and driveway.
There are NO fans of any kind. The closest electrical is the street light pole which is about 100ft away.
On the floor above that right corner, (Room upstairs) I have a PC and speakers connected and an aquarium.
Don't forget! I completely shut-off my main breaker and the speaker still hums!
Now my biggest concern is to find the hum that's on my subs as that is driving me CRAZY!!!!
BTW I've tried grounding the water pipe and nothing changed.
Both my friend and I are baffled! I have no clue where it's coming from and I work in the electrical world!