I have 2 20 amp lines run from a submain box that was attached to the main breaker box via conduit. I had an independent ground rod driven for these 2 lines. I think the ground was still tied to the main ground since the two boxes were bonded with the conduit. It was suggested to me in an audio asylum discussion that this arrangement, had created a secondary ground which could endanger my system from lightening strike damage due to the possibility of setting up a loop between the two grounds. If the resistance in the dedicated ground was less the current could feed back through the system. One of the guys provided a technical document supporting the idea. Since i live in an area that has some great thunderstorms (when not suffering from drought as we are now) I moved the ground to the water pipes where the main ground for the house resides and the sound of the system seemed to improve some. The guys in the asylum thought the improvement could have been the result or removing a ground loop that hadn't been at the hum level.
Dedicated line questions
Hi, i was wondering what 1 has to do to put a dedicated line in there listening room, can someone write up a checklist of all the things i would need to buy to do this? 2- can i do this myself, or do u need an electrican 3- do u know where i can buy some bulk power chord? MANY thanks in advance to anyone who can help me out here. regards Newbie