well...I am back......My Anthem P5 has been working fine for several days but yesterday when I turned it on, I heard the loud electronic buzzing (again) coming from the P5 and after a few seconds , the noise stopped...….This morning, I turned the P5 on and for 4 seconds, the loud buzz was heard and then stopped....This definitely has nothing to do with my D2V processor...The noise is coming from the P5 unit itself......what the heck could cause this ? Everything is working fine; I am listening to my 5.2 stereo right now...….For those that recall my earlier post, the buzzing seems to be linked to the top plug of the P5...…….I think now my strategy is just to leave the P5 turned on 24/7 until I can get idea of what might be wrong.....Could it be the outlet or could it be the plug ? Thnks foer anyone who might want to pipe in