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Can't tell,if my house is properly grounded

Hey guys, I have a low level hi/low buzz that is coming through my speakers, not dependent on the integrated tube amps volume. It is amplified when I turn on my Parasound JC3+ Phono preamp, but only slightly. I have the power cords going to the same outlet. I tried running their power through my Furman Elite Power conditioner but that changed nothing. I ran an independent ground wire and checked all the components in various configurations to no avail. I disconnected all the tv cable to make sure it wasn't coming from there and that solved nothing either. I turned off everything in the house I could' no change. I checked my ground outside at the rod and it is all solidly connected, however the depth of the rod is unknown.

any other thoughts before I call out an electrician?
last_lemming
gdhal's avatar
gdhal
1,641 posts
 
OP, I realize you already have a Furman Elite Power conditioner, but to the point of the thread (based on the topic title), there are plenty of electrical testing devices to check for proper grounding. 

Something simple like an Emotiva CMX-2 which can remove DC (not saying that is the cause of your hi/low buzz) also has line monitor LED indicators that detect "line correct", "open ground", "open neutral hot ground reversed", "open hot" and "hot neutral reversed". 
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last_lemming OP
639 posts
 
Will do - just so I'm clear:

hot = smaller blade
neutral = larger blade
ground = small round hole below the two blade holes. 

I know I sound like a simpleton here, but I don't want to shock myself or damage the equipment. Also I'm assuming I will not damage the equipment as long as I follow the above procedure - for instance testing hot and neutral at the same time while equipment is on. 
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last_lemming OP
639 posts
 
That clarifies everything.  I'm not too scared of it, i've done a little bit of electrical  investigation on cars and a little on homes but  I just like being very clear when I do stuff with it!
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