The first line of my initial posting on 09-04-00 was in response to that same question by you on 09-03-00. I think the plated Hospital grade would probably be better than the original household plug. Electrical outlets, like all things in life, get old and worn. I suspect that the upgrade to the new outlet alone would be significant. Any hospital grade plug will be constructed of heavier and higher quality materials, superior grounding and tighter grip on the male plug, reducing resistance and arcing. If you have a choice, go with the ones I suggested. If you have already spent your money and are getting good results, don't worry about it, change them out after you get some use from the ones you already have. One possible option to make use of the plated outlets (if you do have them) is to install them in other rooms. How about replacing the standard outlets in places where there is a heavy duty hair dryer, a computer or your TV? That would allow you to use what you have, and put the upgraded outlets in the sound system, where it does matter. Just an idea, best luck!