lowrider57
Thanks for the details regarding your experience using the D5.
Personally, I never considered putting a cleaner into a female outlet (even one that is shut off at the breaker). That seems to be asking for trouble. More to the point, I am glad to know that you used it on the male, 3-prong plug. That seems sensible.
One question: did you perceive an improvement or degradation ins sound-Q?
Cheers,