hey guys that upgraded the power for Dave... may want to try the puritan with them... seems like it makes a big difference on the DAC... im ordering one
I've the 3 versions with DC filter, for 3 different locations.
How much it helps depend on your mains pollution/situation Steve Huff said, this sounds logical.
Internet over powerlines adapters does not work at all after the Puritans, which indicate that stripping the mains wave from superimposed signals was successful.