Elizabeth, Interesting!
Try "STAR" grounding your system into the same outlet without the power conditioner.
I still don't believe in power conditioners on anything anytime, but I don't have the problems some people have. I am the first house from the transformer and my voltage is always 117 volts. Besides, I consistantly have good sound. Everytime I try a power conditioner the results are negative. They suck the life out of the music. Don't try to convince me to try yet another power conditioner because I haven't found the right one. I already had this conversation about passive preamps.
I know there are people still using power conditioners as a band aid and other people using power conditioners when they don't need them at all like Grimace with his recent discovery. A power conditioner is not just another component. One Audiogoner wrote "I have assembled my system now what power conditioner do I buy?" Why does he think he needs one in the first place?
There are some areas, especially in large cities, where a power conditioner can be useful, however, there are still tradeoffs by using one.
If you truly have bad power the only cure is a battery pack and a generator not some little box loaded with filters to scrub the edges of your music. Big boxes don't work either. I also tried the Tice Power Block and Titan at 120 pounds with the same results.