Ethernet Cables -- where do they matter most?


Question:

I am always looking to squeeze goodness out of my modest system.

Ethernet cables really didn't occur to me as an upgrade path.

Where do these cables matter most?

My set up is as follows:

1. modem -- > ethernet runs approx 100ft run to router
2. router --> ethernet approx 2ft to netgear switch -- connecting to pc, dvd, roku, av preamp
3. switch --> approximately 6ft Marantz AV7704 preamp

Do I have to replace the very long ethernet run as well  for it to effect sound quality of each piece of hdw that my switch is connected to??




lightfighter2018
I almost invariably try all potential setups, and there are often surprises. Results are not absolute,  as new cables bring new potential and possible better alternatives. 
@douglas_schroeder 

Just didn't know if there was a general consensus on which 'tech' is considered a 'preferred' method of sending music from point a to b... etc.


Everything is important, but some things are more important than others.

In my experience, most important are speakers, speaker positioning, listener positioning, and room acoustics. Next is the electronic gear (sources and amplifiers). Far behind are analog signal cables, which tend to sound a little different from one another, but what sounds better on one recording may be worse on another.

Far behind even those in importance are digital signal cables (including Ethernet cables), cable risers, crystals, gongs, CD polish, and so on. Power conditioning makes a big difference to some users but never has when I’ve tried it. Maybe I have good power in my area. I do have a dedicated line into the audio room.

Take a look at Jim Smith’s book, "Get Better Sound," available from his web site, for another view of all this.

So, there you have one (pretty experienced) audiophile’s opinion. I hope it provides a useful perspective.
I wonder if Jim Smith's book on sound addresses wire directionality, you know, like in Ethernet cables and fuses and power cords. Maybe he needs to come out with a new edition. :-)