Just upgraded to Fiber Optic feed ( 500Mbps) from Spectrum (250 Mbps) OMG

@sfgak 

Thanks.

I'll be having ATT install FO to the house and then an Ethernet port near my equipment rack for my streamer. Likely getting an EtherRegen switch so I can send a signal to my streamer and satellite box. 

The router will go upstairs to my desktop so I'll have ATT do FO port upstairs as well if necessary as I just need Chromecast to receive WiFi signal from upstairs which it now does. 

Everyone - just to be clear - I am a retired Chemist, not an EE. The company supplied their own router - it is a Calix GigaPoint GP1101X. I am hard wired via Ethernet from their router to both streamer/dacs (LUMIN T2 and LUMIN D2). I have two big stereo systems. I run all 3 4k Sony TVs wirelessly via my EERO system which is also hard wired via Ethernet to the new Router. 

I hope this helps.

Thanks to sfgak for his much more detailed response

• I upgraded my Comcast cable to an 850Mbps down connection and was averaging just over 400Mbps through a CM1200 modem and R7000 router running DD-WRT.  After re-purposing an old i7-4770 as a pfSense unit (PC acting as the router) my average download increased to over 500Mbps.  And it never gets over 1% CPU usage.  The R7000 was relegated to Wi-Fi only.

What would be the mechanism for increased quality?  For video, increased bandwidth could increase bitrates.  But I don’t see that applying to audio, nor to be needed.