Upgrading the power supply for Wiim ultra

[Valentino]

WiiM Pro measurements:

WiiM Pro - Review & Measurements (Streamer)

WiiM Pro - Review & Measurements Hey folks, It is time for my first review of 2023... This one is about a complete objective analysis of the new WiiM Pro streamer. The aforementioned has been recently announced, back in November 2022, and I can see quite a strong hype around it since. That...

www.audiosciencereview.com

WiiM Pro Plus measurements:

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

 

[onlyoneme]

They say that Pro plus has a better clocking circuit than Pro. I wonder what difference it makes for streaming-only/digital transport performance.

No, it does not. Both produce the same quality digital signal, worse than the Ultra's one.

 

[venkyrenga]

No, it does not. Both produce the same quality digital signal, worse than the Ultra's one.

So is it worth upgrading from Pro with Allo Shanti to the Ultra even though you cannot upgrade it's power supply?

 

[venkyrenga]

WiiM Pro measurements:

WiiM Pro - Review & Measurements (Streamer)

WiiM Pro - Review & Measurements Hey folks, It is time for my first review of 2023... This one is about a complete objective analysis of the new WiiM Pro streamer. The aforementioned has been recently announced, back in November 2022, and I can see quite a strong hype around it since. That...

www.audiosciencereview.com

WiiM Pro Plus measurements:

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

Does the data indicate their digital out performance to be identical?

 

[onlyoneme]

Does the data indicate their digital out performance to be identical?

These measurements tell nothing about digital out performance.

 

[Valentino]

Show the measurements that tell please.

 

[venkyrenga]

Also, the data says we should not use EQ at fixed volume as it introduces noise and works much better with volume at 95%.
Is that issue already fixed or should I lower the volume to 95%? Btw, I am only using negative eq.

 

[slipthru]

Also, the data says we should not use EQ at fixed volume as it introduces noise and works much better with volume at 95%.
Is that issue already fixed or should I lower the volume to 95%? Btw, I am only using negative eq.

I would think it doesn't matter if it's negative eq.

 

[guy48065]

The Audiolab 9000A will clearly make a difference but you can never convince me that the provided power supply for the WiiM has anything to do with that.

A bad power supply may introduce noise and jitter that distorts the SPDIF signal but then it has to be very bad and will probably make the processors in the WiiM fail also.

There no evidence to support that the jitter & "manageable" error correction would crash the OS.
But it's *possible* these effects are audible.

 

[dangermouse]

My brain hurts.

 

[onlyoneme]

So is it worth upgrading from Pro with Allo Shanti to the Ultra even though you cannot upgrade it's power supply?

IMO yes.

 

[BowsAndArrows]

Show the measurements that tell please.

+1 I would like to see this if someone can link it?! Thanks

 

[onlyoneme]

Some sort of it

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

• 

 

[canard]

Some sort of it

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

• 

maybe the opportunity to use Multitone for this purpose ..will give quantified jitter values... just need to create jtest with rew...and "voila" ;-)

 

[onlyoneme]

It might work, I came to the same conclusion recently.

 

[canard]

;-)

 

[venkyrenga]

Some sort of it

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

• 

I don't understand how this data matters. All the jitter is below -130 dB. How is this even heard?

 

[Yoku-San]

I don't understand how this data matters. All the jitter is below -130 dB. How is this even heard?

Seems like you can hear the difference.

 

[canard]

I don't understand how this data matters. All the jitter is below -130 dB. How is this even heard?

in real life..we are very very very very far from a simple sine 12k...... very...

 

[onlyoneme]

I don't understand how this data matters. All the jitter is below -130 dB. How is this even heard?

Don't look at these graphs as the absolute jitter calculations, it's rather to show differences between devices.