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
@geoffkait 

Actually, sunshine, in case of a regular amp, there is a ground. Go grab a multimeter and test between "-" speaker terminal and the case. You'll get a reading close of zero. But what do I know, having only have designed, produced and coded hundreds of different devices. Anybody here can do this with their amp.

And why do you think I put flow in quotes. 

Now, there will be no case to "-" connection on for example Luxman M900 amp, as it is a fully differential amplifier.

Now, I looked you up, I finally realize why you spew this crap: you sell magic to believers.
You’re not paying attention. God gave you two ears and one mouth for a reason. 
Dude, you sell bags of rocks to attach to interconnect cables. I'm done here. For a while I thought I was just dealing with a few misinformed/undereducated individuals. Now I realize I'm dealing delusions.
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