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

Showing 7 responses by astelmaszek

@dobnbav Of course that a DAC can improve things coming out of a transport in one simple way: memory buffer can entirely eliminate jitter and correct few other aspects of the signal. It cannot make up for missing data, but generally that's not the problem. And whether coax or optical is better once again entirely depends on the DAC. I'm fairly positive that a $500 Chord Mojo is not going to sound any different with either transport due to its immunity to jitter and/or signal quality (squareness of the incoming wave).
@geoffkait Cables are directional. LOL. Settling time. I'm in the wrong business but of course I can't bring myself to that level of detachment from reality. 
@tweak1 What audio tweakers fail to understand that not a single of these things make a damn bit of a difference at audio frequencies. You have to start moving into microwave frequencies for any of this to have measurable effects and even then it doesn't affect anything. The entire world is running on cheap ethernet cable and even cheaper fiberoptic cable with bit perfect data making it across oceans.

As to directionality, more often than not, it has to do shielding only being connected on one end. I assure you not one cable used to wire the entire new Stratcom operations center was tested for directionality. How in the world would the cable manufactures have any idea which way the cable was originally pulled through a die considering it was spooled and respooled many times before it ever arrived at their "manufacturing" facility where they slap fancy outer jackets on them and call it hifi audio cable.
@tweak1 directionality resistance with AC current? I assume you rapidly flip your cables...

@tweak1 Clearly you missed my point. Being that current (AC) constantly flows in two directions in audio, even if such a thing as directionality existed, it would make no difference. 

I'm going to start selling the latest audio tweak. You can be the first to sign up, for only $500K I'll transplant you ears of a one year old rat terrier, so you can now hear the difference between 6inch cable and a 6.5inch cable as well as too much dust having collected on your tweeter. 

In the mean time I'll enjoy my system, all connected by Canare cable, a cable used on something like 99% of studio microphones. If it's good enough to record, it's good enough to play back.
@tweak1 And how do you think that "signal" gets transferred? Let me help you out: current. It never ceases to amaze me that the biggest proponents of all this voodoo have the least amount of understanding of basic principles of electronic design. Actually, it makes perfect sense.

@geoffkait I really hope the electrician in house didn't pull NM in the wrong direction.
@tweak1 Powered by, yes? Driven/controlled by, no? Power by DC, driven/controlled by AC in case of audio signal. Basic transistor theory.

Are you planning on ripping apart all your components, measuring resistance across each and everyone of them and switching them around if you find one with resistance higher in one direction. I'll save you some time: you won't find one like that just like you won't a piece of wire like that either. Basic physics prevents that from occurring, I don't care what you claim. 

And yes, it can all be rather easily measured with a laser pointed at each speaker driver. Just ask Devialet. I wonder why not a single cable manufacturer has ever done this to support their claims. I can tell you why. Cause they'd go bankrupt.

@geoffkait Clearly not.