Originally Posted by Jarno
Have you actually tried it out?
OK, I tried it out and I definitely hear what you are talking about. I don't have headphones but I just did a Stereo downmix.... sitting on the menu in the PS3 (e.g. multich IN with idle audio) and the volume cranked to "0", I can hear a faint "buzz" that gets audibly louder when toggling to Stereo mode.
However, mine is not nearly as loud/objectionable as what you seem to be hearing... I'm not sure if there is something weird that Audyssey picked up or some fundamental difference in our rooms (e.g. maybe more ambient noise in my living room raising the noise floor) but, in Stereo mode with MultEQ + Dyn EQ enabled, I have to be like 2-3 feet away from the front speaker to hear it at volume = 0. When the volume drops to -5 I have to strain to hear it (e.g getting within a few inches) and by -10 it is totally gone.
In MultiCH IN mode, I can hear it faintly at 0 but it is basically gone by -5.
What I noted in my brief tests:
- Dyn EQ surprisingly did NOT have much effect... interestingly, when I engaged Dyn EQ with MultiCH IN (i.e. no downmix) the noise get SOFTER in volume!
- turning MultEQ on/off however did have a big effect on the audibility of the "buzz"
- going from regular MultiCH IN (multEQ off) to MultiCH DIRECT mode killed the noise completely.... so there is obviously something going on with some sort of digital noise that is being amplified/stacked with multiple digital processes. I wonder if it's just some interference / crosstalk that is being picked up with all that stuff jammed in one box?
Anyway.... I can see why nobody else complains about it, because it was impossible to detect at any sane listening volumes. Even at volume = 0 (something I or most never ever approach) I could not hear it from my normal listening positions, and of course you would only ever hear it under very specific circumstances.