Yet another streamer options thread...

As an additional note, I've run fiber with the media converter boxes and also with the Cisco Meraki. Used one LPS on the second media converter. While it adds clarity, it is very much system dependent. I've found it helpful in some instances but not so good in others. 

The Cisco Meraki were easily superior and offered both options of fiber connection and copper. At first I thought to go fiber and that would be great. It was excellent. Then I noticed the switch audio tests at Alpha Audio included a Cisco Meraki. They didn't go SFP with fiber; they went copper. Surely, that's a mistake I thought.

Had not run copper (Ethernet) between the two but remembered I had a shielded ethernet cable stored. So, I took that and whoa. The sound was more meaty and full with all the details and clarity still there as with the fiber. 

Thinking of trying an Ian Canada 5v Uccapacitor into the WiiM Pro. Curious if that will see another improvement. Interested in the Ian Canada streamer solution too. But I really like the WiiM software. Regular updates and features added is nice. 

@jtucker 

While I don’t think there is much performance difference  between LPS and a well designed switcher ( I used to design high performance switching supplies )

Interesting. Like everything in this hobby it comes down to implementation. There are so many posts over the years claiming huge improvements with replacing the wall wort with a linear power supply, and that is true, but that has given the title "switch mode power supply" a bad rap. Many don’t realize some of the best streamers use switch mode power supplies, or some proprietary hybrid power supply- specifics of which is beyond my pay grade- but this is a whole world of difference compared to the cheap $10 wall wort. Linn uses only switch mode power and have for many years in all their products, DAC’s included. 

Apparently according to some of the experts who design and listen to this stuff, linear power supplies are too slow for digital, and they have gone with switch mode and have instead found a way to reduce the nasty switching mode noise. 

Even Network Acoustics in developing their Tempus network switch tried many top level linear power supplies and ended up with a switch mode as that is what they determined sounded best. No idea if they tried a battery option.

*edit* yes, apparently they did try battery power. 

*edit 2* apparently it is some hybrid power supply, so it may be wrong to call it a simple "switch mode power supply".  Like I mentioned, above my pay grade. 

Next thing you know network switches are going to have tubes. 

jtucker OP    All I see about that upgraded Wiim amp are those youtube videos.  I don't see them for sale anywhere or any technical info.  I never use youtube for anything audio.  Besides, I don't need the amplifier function.  I have a Pass integrated.

I don't release upgrade details.

I heard Pass lab gears few times. They sound slightly better than average super expensive amps. But their sounds are still far inferior from the quality sound of my Wiim in musicality, cleanness, and clarity of sound. Simply, my amps and gears don't have the distortion noise unlike all others. Compare sounds below. Alex/Wavetouch audio

My Wiim amp ultra -P. Domingo.

My Wiim amp ultra

Pass Labs INT 250 

Pass Labs INT-25

Jay audio - Pass labs INT 250 

Pass Labs INT25 - Focal Sopra