Test WIIM pro+ with different power supplies

[dangermouse]

It remains a little miracle how some chosen ones can hear differences the majority cannot hear and nobody can measure. The many different effects and biases that have been scientifically proven to fool our perception are simply the more likely reason for any "miles apart" differences in my book.

Expectation bias has a lot to answer for.

 

[MCG555]

Expectation bias has a lot to answer for.

Expectation bias - one of the strongest bias! Can only be avoided by (double) blind test!

 

[MrA]

Topics like this are why I stopped getting involved in audio-eurika nonsense years ago. Everything is personal preference but black-white positions & placebo rage on endlessly on music forums. Yawn.

• In youth I believed pretty much everything the audio mags told me so spent more than I had.
• Older, I joined in audio-discussions and became confused, spending even more as I could now afford it.
• In middle age I developed deep cynicism, bought less & started packing my loft (attic) with the stuff I couldn't sell. The stuff I bought was becoming very expensive.
• In later middle age I discovered speaker time alignment & that it wasn't really the equipment but placement, the room & its acoustics that made a real difference. I completely STOPPED buying music mags and involvement in forums, realising that most of the equipment and snake-oil devices I owned made marginal difference but the system had become exactly what I had been searching for.
• Since ~2012 I have a fabulous sounding setup and just use it to listen to music - a close friend using nearly £500k of the latest Linn equipment still rates my system as more life-like & 'better' whatever that means.

You don't see me posting much other than for the real reason a music system exists ('what are you listening to') & I remain content with that.

End

 

[onlyoneme]

but the measures done for the Pro+ show a jitter noise level way below what is possible to hear (~ -120 dB)

Which one?

 

[dangermouse]

Which one?

Which one of what?

 

[onlyoneme]

Which one of what? View attachment 35087

Of these jitter measurements in the context of audio stream sent over spdif.

 

[hgo58]

Which one?

Here are some references but do your own search.

O

Thread 'Jitter over digital outputs for different WiiMs'

Jul 31, 2024

Let's talk about the jitter over digital outputs. I will use the Holo Audio Spring 3 DAC which is a true NOS DAC and has an unique ability to turn off its PLL. This way I can compare a raw performance of the outputs in j-test.

Ultra, toslink:




Ultra, coaxial:




Pro, toslink:




Pro, coaxial:




Mini, toslink:





Non-WiiM device for a quick comparison, SMSL PO100 Pro, coaxial:





All WiiMs have similar random jitter level, which is reflected by the noise floor, but they differ a lot with the periodic jitter, which is...

• onlyoneme
• Replies: 81
• Forum: General thoughts for WiiM

• 

WiiM Pro Plus - Review & Measurements (Streamer)

WiiM Pro Plus - Review & Measurements Hi Folks, Here is another review, measurements-based, today about the WiiM Pro Plus (or "Pro+"). While some rumors already mentioned it for the last couple of months, it is just launched today (August 8) officially. The WiiM Pro Plus comes with a $220...

www.audiosciencereview.com

WiiM Pro Plus Streamer Review

This is a review and detailed measurements of the WiiM Pro Plus streamer, DAC and preamplifier with Bluetooth support. It was sent to me by the company and costs US $219. While the case is plastic, it still "looks the part" as the Brits would say relative to other more famous brands of...

www.audiosciencereview.com

WiiM Pro Plus - Review & Measurements - Hifi Studio 79 - Hifi streamers, DAC’s & audio

WiiM Pro Plus - Review & Measurements nothing but a bargain alexa apple spotify qobuz roon hi res audio hifi internetradio bluetooth

www.hifistudio79.nl

 

[onlyoneme]

Here are some references but do your own search.

O

Thread 'Jitter over digital outputs for different WiiMs'

Jul 31, 2024

Let's talk about the jitter over digital outputs. I will use the Holo Audio Spring 3 DAC which is a true NOS DAC and has an unique ability to turn off its PLL. This way I can compare a raw performance of the outputs in j-test.

Ultra, toslink:




Ultra, coaxial:




Pro, toslink:




Pro, coaxial:




Mini, toslink:





Non-WiiM device for a quick comparison, SMSL PO100 Pro, coaxial:





All WiiMs have similar random jitter level, which is reflected by the noise floor, but they differ a lot with the periodic jitter, which is...

• onlyoneme
• Replies: 81
• Forum: General thoughts for WiiM

• 

WiiM Pro Plus - Review & Measurements (Streamer)

WiiM Pro Plus - Review & Measurements Hi Folks, Here is another review, measurements-based, today about the WiiM Pro Plus (or "Pro+"). While some rumors already mentioned it for the last couple of months, it is just launched today (August 8) officially. The WiiM Pro Plus comes with a $220...

www.audiosciencereview.com

WiiM Pro Plus Streamer Review

This is a review and detailed measurements of the WiiM Pro Plus streamer, DAC and preamplifier with Bluetooth support. It was sent to me by the company and costs US $219. While the case is plastic, it still "looks the part" as the Brits would say relative to other more famous brands of...

www.audiosciencereview.com

WiiM Pro Plus - Review & Measurements - Hifi Studio 79 - Hifi streamers, DAC’s & audio

WiiM Pro Plus - Review & Measurements nothing but a bargain alexa apple spotify qobuz roon hi res audio hifi internetradio bluetooth

www.hifistudio79.nl

You didn't provide a specific and precise example; instead, you bombarded me with generalities.
You probably can't provide such an example correctly.
Believe it or not, the graphs you cited are not the jitter measurements discussed here.


"The lack of understanding can lead to the creation of personal or simplified explanations to fill the gaps in knowledge."
Exactly.

 

[BowsAndArrows]

Well, we've discussed A/B/x testing a few times in the forums... it's not as easy as people think to conduct such tests and to analyse the data without bias and confounding...

See the discussion here if you are interested... but that's basically why we recommend extended listening at home (or a familiar system). When trying to judge subtle differences in SQ caused by making a change...

 

[sylvainb]

When you are ready - sometime - make yourself familiar with a) what and how data is transported and b) the concept of „psycho acoustics“…

When you get to save some money and get yourself some better setup and start listening to music with your ears and not your eyes will be the beginning of a new experience. Its mostly about people using cheap gears. We all have ears, put ego aside and start listening.

 

[hgo58]

When you get to save some money and get yourself some better setup and start listening to music with your ears and not your eyes will be the beginning of a new experience. Its mostly about people using cheap gears. We all have ears, put ego aside and start listening.

What do price have to do with it?

 

[sylvainb]

What do price have to do with it?

You must be new to audio. Good setup come at a price and the quality is unfortunately linked to the price. I am sure you can still find some old cheap amp (Japanese?) and speakers that sound ok. It is just a fact that good audio equipment cost more.

 

[jfbuk]

You must be new to audio. Good setup come at a price and the quality is unfortunately linked to the price. I am sure you can still find some old cheap amp (Japanese?) and speakers that sound ok. It is just a fact that good audio equipment cost more.

I’m sorry but that is audiophile snobbery at its worst.
If you had taken the trouble to read @hgo58 ’s many posts on this forum you would know what utter nonsense your opening sentence is.

 

[sylvainb]

I’m sorry but that is audiophile snobbery at its worst.
If you had taken the trouble to read @hgo58 ’s many posts on this forum you would know what utter nonsense your opening sentence is.

Maybe you right, my initial comment was to confirm the importance of a good power supply. You dont know me, I am suprise you are referring my words as snobbery, I speak with my experience and I am far from snob. I will certainly read your link.I just look at the reference, the guy as over 3000 comments, lol I wonder if he ever listen to music ? Can you give me some specific post ? Thank.

 

[onlyoneme]

Good setup come at a price and the quality is unfortunately linked to the price.

Yes and no. Some audio products show a strong correlation between price and real value, while others don't.

 

[Burnside]

Maybe you right, my initial comment was to confirm the importance of a good power supply. You dont know me, I am suprise you are referring my words as snobbery, I speak with my experience and I am far from snob. I will certainly read your link.I just look at the reference, the guy as over 3000 comments, lol I wonder if he ever listen to music ? Can you give me some specific post ? Thank.

Might I remind you that the first rule of the forum is to be courteous and treat others with respect? As to whether @hgo58 listens to music, I'd refer you to the five pages of comments they added to the "What are you listening to?" thread:

Search results

forum.wiimhome.com

 

[MCG555]

You must be new to audio. Good setup come at a price and the quality is unfortunately linked to the price. I am sure you can still find some old cheap amp (Japanese?) and speakers that sound ok. It is just a fact that good audio equipment cost more.

I actually wonder why you are here?
WiiM is not known for pricy equipment - but vice versa - for exceptional quality with a fantastic price/value relation.
So you put your own statement ad absurdum…