Hi Bryon,
I don't see anything implausible about that, and probably the explanation is along the lines of the things the others have suggested. The circuit reset that occurs at power on undoubtedly clears out and affects a great many things, which may in turn affect subtle interactions between seemingly unrelated circuits, caused by effects such as noise coupling.
It's probably not possible to hypothesize anything more specific without knowing the details of the particular design, and perhaps even if those details are known.
The one additional point I would make is that I recall that some time ago you found that removing some unneeded modules and the top cover from the G68 resolved a heat problem it had. Are you still running with the top cover removed? If so, perhaps that is contributing to rfi that may be radiated from the digital circuits in the G68 into other components in the system, which could conceivably result in the haze and high frequency distortion you described via intermodulation with signal. The rfi conceivably being sensitive to circuit conditions that would be affected by a periodic reset.
In any event, you've discovered a simple tweak that is beneficial in your particular system, so I'd just go with it!
Best,
-- Al
I don't see anything implausible about that, and probably the explanation is along the lines of the things the others have suggested. The circuit reset that occurs at power on undoubtedly clears out and affects a great many things, which may in turn affect subtle interactions between seemingly unrelated circuits, caused by effects such as noise coupling.
It's probably not possible to hypothesize anything more specific without knowing the details of the particular design, and perhaps even if those details are known.
The one additional point I would make is that I recall that some time ago you found that removing some unneeded modules and the top cover from the G68 resolved a heat problem it had. Are you still running with the top cover removed? If so, perhaps that is contributing to rfi that may be radiated from the digital circuits in the G68 into other components in the system, which could conceivably result in the haze and high frequency distortion you described via intermodulation with signal. The rfi conceivably being sensitive to circuit conditions that would be affected by a periodic reset.
In any event, you've discovered a simple tweak that is beneficial in your particular system, so I'd just go with it!
Best,
-- Al