Hey soix,
Totally agree with you, if Don likes AZ cables, the AZ MC2 would be a great addition.
Of course CD transports make a difference regarding the performance of the DAC they are driving. I consider myself some what of a connoisseur regarding transports. I do not stream, so all my DACs are driven by CD transports. Here's a list of what I have in my collection of spinners:
1) Mark Levinson 31.5 2) CEC two belt T-3,3) Pro-Ject reference with LTA upgraded power supply, 4) Jays Audio MKIII.
I also just had in for review Bricasti's new 10K transport. So when I suggested to Don that his Rotel would suffice to drive the Aero, I did not mean that it would get the ultimate performance out of it, but good enough to still hear what the Aero has to offer. By the way, the best performance I get in my system, regardless of the DAC, is the combination of the Mark Levinson with Jena Cables reference digital cable.