I suggest disposing of theory & gambling a few hundred dollars on a simple clock upgrade and report back to the forum.
What would you suggest that would be a few hundred dollars and would make an immediately obvious improvement? I have four mega-changers, a Blu-Ray player and some standalone CD players stacked in storage...I have more than enough gear to make a controlled A/B comparison from the listening position using a remote (if it is simply jitter correction). For a few hundred I would be willing to dispose of theory.