The saga seems to have a good ending!

The last of the hum seems to be gone after moving the routers and cable box away from the 975 and adding some ferrite to the Harmony remote hub and moving the demonic little blasters! I even added Ferrite to them just to let them know who was boss.

To sum up, the above along with a Hum-x on the plasma and going from 9 foot unbalanced cable to 24inch also contributed.

Last nite I was putting everything back and making sure the transmitters with the remote were doing everything right and was turning the TV on and off a few times when all of a sudden it stopped working and would not turn back on. I unplugged it but that did not work. The panasonic power indicated red LED was blinking, its way of telling you something is wrong. When I googled my model number and this LED sequence I found "Red codes of Death" and to my horror and joy thought I might be shopping for a TV this weekend. Its a 7 year old 58in Plasma and other than having a bit of a wide frame and a fan to cool itself from the heat it throws off its an amazing picture and Im not ready to replace yet. Wife looked at me and said "Your not doing this on purpose, right?" I replied, "truth be told, I'd rather blow up the Sub's and replace those!" I unplugged the Plasma one more time and let it sit for a minute and it seemed to reset itself.

In the process of calibration I did discover one of my M&K Subs was not turning itself on and when it did, it was not putting out. After some cable swaps I took it apart and replaced the plate amp with one I had bought years ago as a spare. once done and repaired I was able to notice what had been missing and the system now is all back together and I'm having fun listening to music with the new 975 doing a great job on 2.1 stereo way above what the 990 did! with my woofers now working and calibrated via the velodyne SMS-1 I am one happy Outlaw!!!!

Thanks for all the help and suggestions!