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Separate ground for dedicated line

I would like to install a dedicated line or 2 with a separate ground. Would installing a ground rod in my crawl space and running two ground wires from the outlet (1 to the rod and the other to the main breaker box) be acceptable in terms of tying the grounds together? I am not certain where the main ground is located since the power feed to the house is buried with no exposed cables.
I need to do something as the stereo is on a noisy 14 guage lighting circuit. Thanks.
-Stephen
rphsvc
joeb
121 posts
 
This is a bit off topic, but my new listening room is being built over the garage, very close to the power line and a utility co. transformer. On wall runs paralell to the power lines a mere 10' from the wall. I am worried about electrical interference being that close. Perhaps Ernie and Gs5556 could respond?
thanks
piezo
302 posts
 
i originally did my dedicated lines in a previous abode with a seperate ground rod though my secondary box was bonded to the main box. It sounded significantly better. Then a kind soul on audio asylum described with word s and pictures the mechanism by which a lightning strike would preferentially kill my system. I proptly went to a single house ground without significant degredation of the sound.
subaruguru
1,353 posts
 
Joeb, I hope Audiogon allows this response, as I resell cut lengths of Belden 8300 series cable for dedicated lines....
I would try a SHIELDED power cable for your dedicated lines, connected to better duplexes, and then use SHIELDED PCs to your components. I assemble simple power cords with inner full shield "drains" AND a SWITCHABLE outer third-wire safety ground, thus allowing you much versatility in organizing ground paths while maintaining excellent RFI protection. RSVP so I can help further. Cheers.
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