Oh PLEASE!!! Now I've heard it all! The AC cord on the transport makes a difference???
The ONLY thing that makes a difference is the stability of the clock/power/ground at the last digital element prior to the actual D-to-A. (I'm talking downstream if the digital filter here.) Anything upstream of that ONLY makes a difference if it affects in some way, shape, or form the clock at that critical point.
You can have jitter up the ying yang upstream, but as long as proper care has been taken to provide a jitter free clock at the LAST register, upstream crud doesn't matter. Of course the power and ground at the last register also matters because noise on the power or ground cause fluctuations in the switching threshold of digital devices, but even that can be minimized by providing rapid rise and fall times on the clock.
If someone hears a difference when they change a transport or digital cable they should realize that what they are actually hearing is a byproduct of insufficient filtering or isolation IN THE DAC!!!!!!
The ONLY thing that makes a difference is the stability of the clock/power/ground at the last digital element prior to the actual D-to-A. (I'm talking downstream if the digital filter here.) Anything upstream of that ONLY makes a difference if it affects in some way, shape, or form the clock at that critical point.
You can have jitter up the ying yang upstream, but as long as proper care has been taken to provide a jitter free clock at the LAST register, upstream crud doesn't matter. Of course the power and ground at the last register also matters because noise on the power or ground cause fluctuations in the switching threshold of digital devices, but even that can be minimized by providing rapid rise and fall times on the clock.
If someone hears a difference when they change a transport or digital cable they should realize that what they are actually hearing is a byproduct of insufficient filtering or isolation IN THE DAC!!!!!!