LPSU foe modem and router - how important?

It is completely dependent on your streamer. The better your streamer, the less it matters. 

Good Morning @ghdprentice !  It may matter less, but but I hear the improvement. Obviously there are folks here that don't hear it, or don't want to try it.  And to others, there is just plain 'good enough'.  I know you are neither! 

 @mikhailark, you might be best suited for the world of Docusign and military concerns vs. the nirvana of amazing sound.  But I am glad these discussions cause you to laugh.

Very important I have linear tube audio on the router tons more noise filtering 

over 100 k in capacitance and worlds best Belleson low noise regulator,

for the Ethernet hub  LHY make decent ones and there top model is exceptional 

at $2200 the cheaper models around $800 ,$25 hubs are junk and add lots of noise to the end point ,and at minimum a Pangea $200 power cord Everything counts in Audio !! P.s Ethernet cables ,nothing under $2-300 from router , end point most important $1-2k

@ghdprentice 

Zenith MK3 with PhoenixNET and PhoenixUSB. 

IFI Elite on modem plugged into Powercell 8SX 

This is getting tiresome.

First - I have no experience whatsoever in whether or not a LPS makes a difference on a router or modem. So I cannot speak to the efficacy of such an investment. Might work. Might be placebo. I personally can’t say.

My comments are directed to @mikhailark and the likes of a frank00_ character who is obsessive on some cable threads. (I don’t want to inadvertently invite him into this thread). 

No one in this particular discussion is suggesting a change to the quality, quantity or timing of data transmission. All wires transmit signals. All wires are antennas of sorts both broadcast and receiving. Power supplies emit EMF. The antenna picks up that noise and sends it down the wire just like any digital data. Like a hose transmitting dirty water, the dirt flows with the clean potentially polluting whatever receiver is downstream which may or may not be affected by it. I don’t know.

Neither do you.

You mock some for their “faith” here. Yet, you are more guilty of your own dogmas and faith because you assume you know all there is to know, ignoring the fact that the other posters here have actually tested.

You disbelieve their results. Fine. But it’s comical and ifrustrating for you to come to the forum posing as an expert when you actually don’t know, haven’t tested, and haven’t even considered the possibility that your understanding might be limited. And the limit of your understanding is made clear by the fact that you fail to understand what is referenced by the term noise. 

If you actually tested any of the things you’re claiming - we’d consider your experience. As it is - you have little credibility and are just adding your own type of noise to this thread.

Rant over.