Differences between cd transports?


Howdy,I borrowed a dedicated CD transport (Musical Fidelity) from a friend. I have found that music sounds much better with his transport than with the CD player I’ve been using to spin CDs. In both cases, I am using exactly the same DAC via the optical out connection from the transport and the CD player. So: is there any rational reason that, using the same digital to analog converter, one CD spinner should sound much better than another?Thanks!  
rebbi
I'm going to make a video later on this week with a GOM-804 on a 250ft spool of canare l-4e6s and post it here. Why the GOM-804? So Geoff can't argue the meter wasn't accurate enough. Can't get my hands on it until Thursday morning.
Hey, Moops! When did you get out? Thanks for the mention, I’m thinking of promoting you to associate shill.
Physics all the way down? Who talks like that? Oh, I know. An English major. 
geoff kait chides me: "I never said it [i.e. directionality] wasn’t physical or electrical. But that’s not what you asked. You asked what I meant by directionality. You have to know how to ask the right question."

Ok, geoff kait, I'll try again to get to the point that you seem to want to evade forever: If the directionality of a cable is the property of its sounding better, then what electronic, i.e. physical, property explains that? What electronic, i.e. physical, property grounds the "sounding better"?

Surely, that question is apt and answerable.

So........?