Powering WiiM Pro Plus with a power bank

[Fletcher Munson]

I’ve heard a difference in an internet provider’s fiber optic router service, Cisco models as noted earlier and a LPS- battery powered WiiM streamer in my full range tube amp monoblock system. Wasn’t subtle. YMMV.

There’s potential interference with the Ethernet cable. Did see this video before.

Was pretty surprised when I heard improvement with a Blue Jeans Ethernet cable. Didn’t expect that.

You are actually trolling now

 

[taube Taube]

You are actually trolling now

Warning! Audiophile detected!

 

[goodmore]

A tall glass of wine makes my WiiM sound better.

 

[Horsey]

You are actually trolling now

No, I'm not. Had no belief that ethernet cables could matter. Please nooooo.

 

[Horsey]

Warning! Audiophile detected!

I'm no audiophile, I'm a damnit.

 

[dangermouse]

Seven pages so far, trying to argue with a guy who sincerely believes in fairy dust, and doesn’t understand the concepts of confirmation bias and genuine blind testing protocols.

It’s all becoming pretty pointless.

 

[JAB]

Repeated: Is it boredom, empathy or sense of mission to go again and again in a predictable merry-go-round?

 

[canard]

You don't have to be a masochist either... you have the right, not to deny yourself, to appreciate a listening experience or material more or less... over time... that's important. Over time..

What makes you appreciate music," your music"... rest assured, more than any measure of "Sinad at 1khz," the artists you appreciate, etc., will undoubtedly encourage you in the vast majority of cases...
;-))

 

[HansD-NL]

You don't have to be a masochist either... you have the right, not to deny yourself, to appreciate a listening experience or material more or less... over time... that's important. Over time..

What makes you appreciate music," your music"... rest assured, more than any measure of "Sinad at 1k," the artists you appreciate, etc., will undoubtedly encourage you in the vast majority of cases...
;-))

I have no idea what you are saying but believe you mean well.

 

[canard]

P.S. Blind listening is, of course, already a bias in itself... and considering all this "within the general population" and not acknowledging that there are more expert or informed approaches, reducer... (this is actually pointed out in the results of often-cited, serious studies... which distinguish different categories of listeners ;-))
, you just have to realize what it reveals, without resorting to demagoguery)
Okay, that's the end of my little digression, which will inevitably be pointless. ;-)

 

[canard]

I have no idea what you are saying but believe you mean well.

No problemo
;-)

 

[taube Taube]

I don't understand how the conversation turned to network devices?

If we're talking about powering the device, it makes sense, as well as a logical explanation. Inexpensive switching power supplies, like those included in the Pro Plus kit, don't fully filter the pulses. This isn't important for charging phones, but it does for the DAC chip. Therefore, a linear power supply can improve sound, just like a high-quality switching power supply. I've seen it for myself. But a battery with a switching voltage converter is clearly pointless.

 

[Fletcher Munson]

I don't understand how the conversation turned to network devices?

If we're talking about powering the device, it makes sense, as well as a logical explanation. Inexpensive switching power supplies, like those included in the Pro Plus kit, don't fully filter the pulses. This isn't important for charging phones, but it does for the DAC chip. Therefore, a linear power supply can improve sound, just like a high-quality switching power supply. I've seen it for myself. But a battery with a switching voltage converter is clearly pointless.

its all about the obsession that people have with external noise effecting output of dacs afaik

 

[Horsey]

You have a a basic ignorance of how TCP/IP networking ensures data integrity and this is why that statement is meaningless. Your Cisco switches have nothing to do with the rendering of digital data into the analogue sound you hear.

Then you have a basic gap in understanding the data integrity transfer is not the sole aspect in the final outcome to human hearing.

The Cisco switches have, without a doubt an impact on the audio quality. The question of how and why remains available for further exploration.
For those who have a very good audio system, I'd suggest they consider it.

 

[Horsey]

its all about the obsession that people have with external noise effecting output of dacs afaik

My fault because I referenced recent system enhancement in my tube amp monoblock system.
I noted that both the Cisco switches and replacing an LPS to the WiiM with a battery-powered version saw improvements with both.

Mea culpa.

 

[Horsey]

its all about the obsession that people have with external noise effecting output of dacs afaik

The quality of an LPS and how battery power is delivered apparently both play significant roles with (source) equipment.

Rob Watts of Chord shared his thoughts on this aspect with different connections to DACs which was rather interesting. It went deep into the weeds.

 

[slartibartfast]

The quality of an LPS and how battery power is delivered apparently both play significant roles with (source) equipment.

Rob Watts of Chord shared his thoughts on this aspect with different connections to DACs which was rather interesting. It went deep into the weeds.

This is Rob Watts on power supplies

Why do most Chord Electronics DAC products use what appears to be cheap wall-wart power supplies?


Because the units themselves have internal power regulation and RF filtering. Adding ‘better’ power supplies will either make no difference or make it sound worse (brighter) – so superficially more impressive but actually worse due to increased RF noise from big linear PSUs.


I am only interested in spending money on parts that will improve sound quality, so devices are designed to work with that particular power supply unit.

 

[jfbuk]

Then you have a basic gap in understanding the data integrity transfer is not the sole aspect in the final outcome to human hearing.

The Cisco switches have, without a doubt an impact on the audio quality. The question of how and why remains available for further exploration.
For those who have a very good audio system, I'd suggest they consider it.

I guess in your reality the earth is flat and the moon is made of cheese.

 

[Horsey]

Seven pages so far, trying to argue with a guy who sincerely believes in fairy dust, and doesn’t understand the concepts of confirmation bias and genuine blind testing protocols.

It’s all becoming pretty pointless.

Your allegations are what's pointless and utterly lame.
I prefer the Scientific Method.

Don't do angel dust, kids.

 

[Horsey]

This is Rob Watts on power supplies

Why do most Chord Electronics DAC products use what appears to be cheap wall-wart power supplies?


Because the units themselves have internal power regulation and RF filtering. Adding ‘better’ power supplies will either make no difference or make it sound worse (brighter) – so superficially more impressive but actually worse due to increased RF noise from big linear PSUs.


I am only interested in spending money on parts that will improve sound quality, so devices are designed to work with that particular power supply unit.

Swing and a miss. Rob Watts had a lot more to say then the limited offering you posted just last year.

To my repeated point, despite the denialists:
"For low power DAC amps Li ion batteries are also ideal"
Any PSU needs to be compared against battery operation - if the SMPS sounds identical to a car battery..."

That's a Wrap.
I won!

(I'm sure we're going to see denialists chop up the word "ideal" into numerous parts and mock it as well.)