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
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Curious the number of persons who want to argue about the merits of cable vs toslink even though the initial poster is using toslink with both transports.  So this is irrelevant. 

That said, the cable crowd seem to think there is only one kind of toslink,  when there is a wide range. Yes a $2.00 toslink may sound worse than a $100.00 cable.  I personally like Wireworld Toslink  which was about $80.00.  
So if fuses are directional, is the wire the fuse connected to directional? It MUST be, right? Are all of the other wires connecting everything else in a component also directional? I doubt that component manufacturers take the directionality of those little and not so little wires and board traces into account, and most of ’em are thicker than the fuse wire...And if all of those little wires and board traces are directional, isn’t the sum of all of it working together resulting in directionality chaos? And if it is, why can things still sound fine? Why? Why? Man...now I need a nap...
Somebody must have taken his smart pill today. Yes, all wire is directional, internal speaker wire, internal electronics wire, speaker wire, digital cable, interconnects, transformer wire, fuses, capacitor wire, all of it. That’s why many high end cable companies have been controlling directionality for 25 years. That’s also why power cords should be controlled for directionality. And why HDMI cables should be controlled for directionality. Note that fuses and cables and cords in AC circuits are directional.

The more wire you can put into the correct direction the better the system will sound. (It’s quite common for audiophiles to believe their system sounds great. Just an observation.) 😬

Pop Quiz - How many times have I made those comments on this forum before it finally dawned on Wolfman?

a. 5
b. 10
c. 25
d. 100

”No matter how much you have in the end you would have had even more if you had started out with more.”
Maybe 4 years ago I bought an Oppo 105 to play SACDs not realizing it does not output SACD, but plays it only when using the variable VC, so I used balanced cables, but wasn’t happy with it when playing red book cds.

So I inserted my backup, a highly modded Pioneer PD 65, with outboard PS. It had toslink out but not coax out, so. I bought a WireWorld Starlight toslink cable

I decided to upgrade the 105s power supply in expectation of using it for both, but was using the Starlite toslink for redbook. I still wasn’t happy, but was unaware that coax was superior (at least at this level). The Pioneer laser died and parts are no longer available.

Being on a tight budget, I was not in the position to buy the much heralded Jay’s Audio transport, but I contacted them to ask why no toslink, at which point I learned of its inferiority to coax. So, I did my homework and bought a Marantz HD CD 1 to use as a transport and eventual backup. Again I used the toslink, but finally, I bought a hq WireWorld  coax and was shocked. This is the kind of sonic upgrade I would expect from better components, be they amp, pre, dac...

Even though I knew cables/ics matter a lot, I was not up to speed when it came to toslink v coax. Lesson learned.

I am now back using the 105 for redbook and needing to use it direct to amp when listening to SACDs