Ground (How to test?)

Tech Square

Technical and speculative discussion of amps, cables and other topics.

I have yet to achieve a silent, non-humming, system in my listening room. Pertinent facts:

1. Our house is 5 years old.
2. I have a dedicated isolation transformer (5kva) for the audio equipment
3. I have a dedicate sub-panel that is fed by the isolation transformer
4. each piece of equipment is on its own circuit breaker
5. The system uses balanced cables

When using a line-input (read CD or tuner), there is a slight buzz (not hum).

When using my built-in phono stage, there is a material hum (not buzz). I have tried every conceivable tweak, changing wires, floating AC plugs, etc.

Upon inspection of the ground copper rod that is in the earth, I noticed that the rod could be easily wiggled, with about 1/2" movement (left to right).

So, I am wondering if my hum/buzz problems are ground related and in particular, the ground rod itself.

Is there a way that I can test to determine if my ground is good? Are there any suggestions on some tests that I can run to help alleviate the buzz and more importantly, hum on my phono section?

Thanks in advance.

This post is made possible by the generous support of people like you and our sponsors:

Schiit Audio

Topic - Ground (How to test?) - banpuku 14:15:05 05/22/09 (2)

RE: Ground (How to test?) - Awe-d-o-file 16:13:32 06/15/09 (0)

RE: Ground (How to test?) - shermanr@prw.net 11:00:58 05/29/09 (0)

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.