Hi: A follow up report on the BC86 MKII Noisehound. I hooked it up onto a power strip with my receiver, CD player and and my cassette deck. Honestly, I could not tell the difference either at low volumes, at high volume, or by listening to the "white noise" on my speakers with my CD player on pause or at any other time during the past three days. Either I do not have an AC power line that is noisy or dirty, or my components just have no audible benefit from such a sophisticated noise filter. Anyone else want to take this BC86 MKII off of my hands? I really don't think that I am needing this accessory to treat a problem that appears not to be prevalent, or my ears have finally given out!