Ethernet Cables, do they make a difference?

Hello @acepilot71,

I'm not sure what you are referring to specifically (what page/section) in that review?

I use Roon and connect my BDP-1 via ethernet which further feeds my DAC.

When I use the BDP-1's native MPD software and play music off a directly connected flash drive, it doesn't make any difference to the SQ whether an ethernet cable is plugged into the BDP-1 or not. It doesn't care what devices are used. In this setup, the ethernet is there only for controlling playback.

However, when using Roon with the same setup, suddenly all these subtle differences start appearing based on the device, power supply, or ethernet cable (length) used.

I'm not sure why this is the case .I have done a number of experiments to try and isolate variables and see if any patterns emerge. Some of the results make sense with the established knowledge, while other results go against what most audiophiles are doing and assuming as the culprit.

I meant that DAC is well separated from played - that is the key.
Actually cable from  BDP-1 to DAC may create some difference.

Try toslink from BDP-1 to DAC

The BDP-1 doesn't have a toslink output...

I'm not sure if we're both on the same page about what we're discussing.

@acepilot71 I do not own the integrated. I own the Black EX DAC and EX amp. I doubt there is much difference as far as the Ethernet input goes. 

@acepilot71  Does your DAC have an Ethernet input?  I am not addressing TOS Link or USB.