"I liked them so much that I bought 11 of them! One is placed over the breakers. One each under my 2 DIY power strips. I have one each under each of my Audio components. I used some Cardas blocks to get the Bybees up as close as possible to the underside of the component. On the Video, I have one each under my cable modem, cable box, Blu Ray, and attached one to my TV.
Surprisingly there is a break in time, which makes it a little hard to decide on final placement. The Video improvement was instantaneous, but the Audio took a few days to open up." - ozzy