Which one benefits more from a better power cord?

Since you own the statement already I would try a blind test experiment with a friend to see if the statement in various positions sounds better/worse/same to your own ears in a particular position. If you can hear a significant audible improvement and identify when/where the statement is in the signal path... then your tests would not only help you in your decision but would help others on this forum too (particularly those who might have difficulty justifying such an expense)...

Muratc,

Interesting. Thanks for sharing this. Intuitively I would have guessed the opposite. I would have thought that the transport, being an all digital device with optical digital output, would be very robust with respect to power supply condition...being digital either it works or doesn't. The DAC, on the other hand, being an analog device, might convey power supply condition to the output signal in some manner.

Thanks for sharing and happy listening with your awesome gear!

Muratc,

The DAC has an anolog output which is why I called it an analog device....your transport has an optical digitial out and this is why I referred to it as all digital.

Digital signals are very robust - they tend to either work pefectly (following thier software program algorthims) or not at all - of course.