To me the best way to get the most from your electricity is to run an isolated circuit and ground to the recepticle. Not only that, but if your house is like mine and is piped, you will want to make a seperate home run from the panel to the 1900 box, if your house is roped you should be ok. Line condintioners arent that bad, although in my 12 years as an elecrician, I still don't see any real improvments in performance, unless the house was'nt wired properlly. Another thing you might want to do is check out the load calcs on your panel and check to see if it were properlly phased when the breakers were installed. This is one of the biggest problems I have seen. Soundhounds transformer step down would be a great thing, unfortunately your house wouldnt function so well electricly that is. I say save the cash on the cord and get a qualified electrician to check out the wiring of your house.