Thanks for asking this question. I was just about to post something similar. If one has a decent CD player -- say, for example, a Rega Apollo CDP -- is jitter an issue, or is it safe to assume that the manufacturer has dealt with this in making the one-box unit, making the transport section and DAC function together in a way that keeps jitter to a minimum?
How can I tell if I need a better clock for my DAC?
I was interested in the responses to a related post by leemaze this week, saying that a Synchro Mesh was a good way to improve a DAC with subpar jitter. I have a Cambridge CXU, with an inboard DAC; how could I determine how much jitter it has?