It seems most look at dedicated lines as a way to isolate noise. MSB looks at it differently. According to MSB, the main goal should be to lower resistance. These are their guidelines that I followed and it has made a very nice difference for me. This dedicated line also only cost me about $300 to implement:
http://www.msbtech.com/support/wiring.php?Page=supportHome
For those whose homes aren't near a utility transformer and line noise is indeed an issue (i.e. listening at midnight yields better results than listening at 5 pm), here are a couple of products that you install at your panel that don't cost a ton of money and could make a difference. I don't have these products currently but I am curious about them. Any input from people who use these would be much appreciated:
http://ep2000.com/uploads/EP-2050_SeriesSpecifications.pdf
http://ep2000.com/uploads/EP_Ground%20Filter.pdf
http://www.msbtech.com/support/wiring.php?Page=supportHome
For those whose homes aren't near a utility transformer and line noise is indeed an issue (i.e. listening at midnight yields better results than listening at 5 pm), here are a couple of products that you install at your panel that don't cost a ton of money and could make a difference. I don't have these products currently but I am curious about them. Any input from people who use these would be much appreciated:
http://ep2000.com/uploads/EP-2050_SeriesSpecifications.pdf
http://ep2000.com/uploads/EP_Ground%20Filter.pdf