Have any mpd3 owners heard the hissing and background 60hz type oscillation noise coming from your unit when no music is being played through the xlr connections? I have heard this in 2 separate players now , one I had in my home the other at my local dealer who had the other unit hooked up to AR pre amp amp and 180000 Wilson speakers, both units did this and the dealer was shocked when I pointed this out. Would like to know if anyone else hears this when you turn your volume control up a bit without music playing. Thanks
