Ethernet Cables, do they make a difference?

Hi, acepilot71,
When I return from business, I'll attempt a blind test with a straight CAT5e compared with my new CAT7 and see if my friend can detect a difference. I will then have my friend perform the test on myself to determine if I can consistently confirm which cable is in the system and report the results here. Also, again, I have the question as to what is the difference between a 600Mhz cable and a 1000Mhz cable?
Thanks! 

I have the SOtM dCBL-CAT7 and don’t really think it makes a difference.

Yes, they make a difference, but not because “bits is bits”.  The last meter, I have been told, improves EMI rejection. Regardless of the science, I hear a difference. 

No need to A/B my Cat6 cable with the new Cat7 cable. The difference with the Cat7 was a transformation, I would never have believed it. SQ improved to a degree of significance I find hard to describe. More detail, air, articulation, speed of transients and a lower noise floor just to begin. This is truly a cable not to overlook! 

What is "too much" for an ethernet cable?
some folks think that means a $200 ethernet is too much, some think $800 would be too much. Everyone has different systems.

but I hope we all agree that the signal difference, even very small, will make a difference by the time the signal gets from NAS to renderer/server/DAC to pre amp to amp to speakers.

e.g. an ethernet on the lower end will eventuate lower level SQ returns in the final signal from the speakers, and a a higher end ethernet will produce higher end results. The ethernet from the NAS is near the signal origin, and will thus flavor the SQ all the way through the signal chain to the speakers.