So I bought one of these from Oade Bros, they are only about 1/2 hour away from me. The unit sounds nice and very convenient for HT use, but I have one gripe and I was wondering if anyone esle here has one of these and can tell me if it is just me. I can hear a constant, independent of volume, low level hiss coming from the speakers when nothing is playing, or from the center and rear speakers when playing something in 2 channel mode. A couple of feet away and it is not very audible, but distracting when you walk by the rear speakers and hear this noise. I got one unit and it had a different problem, so exchanged it and realized that both units had this "hiss". I have looked through the settings and found nothing that would realte to this. Any ideas or suggestions?