More network switch tests

[March Audio]

2 hours ago, Deepthought said:

It must be hard being a manufacturer when people post these sort of threads on the internet. But I guess we need to silence those pesky subjectivists once and for all! 

 

My view is that snake oil products do the hifi world no good, manufacturers or consumers.

 

There is no objectivist/subjectivist battle as you assert.

Edited August 17, 2023 by March Audio

[March Audio]

27 minutes ago, Deepthought said:

Yes, I've since read that -

 

Yep, that amateur Korean internet  reviewer/blogger dismantled, modified and damaged the speaker causing a measureable problem. 

 

Quite incompetent.

 

Edited August 17, 2023 by March Audio

[Guest]

15 minutes ago, March Audio said:

 

Yep, that amateur Korean internet  reviewer/blogger dismantled, modified and damaged the speaker causing a measureable problem. 

 

Quite incompetent.

 

And no right of reply. That must be annoying.

[March Audio]

3 minutes ago, Deepthought said:

And no right of reply. That must be annoying.

To put it midly.  There is a response on our own forum.

Edited August 17, 2023 by March Audio

[Addicted to music]

2 hours ago, Deepthought said:

It must be hard being a manufacturer when people post these sort of threads on the internet. But I guess we need to silence those pesky subjectivists once and for all! 

if you have a look at what they are charging for this rebadged switch,  I have no sympathy for them.   However there will always be a market niche generated by expected bias.   There are many threads here doing the rounds doing  just that, and when someone trying to explain on those threads that it’s virtually impossible by explaining the way ethernet and applications work it’s generally dismissed or they are seen as trolls.   What they believe they hear rules, however the ear and brain can be deceiving,  there is nothing we can’t measure what the is sensitive to, in fact most measurement instrument goes beyond the thread hold of hearing, here at -160db is way beyond the capability of the human ear.    The other expectation and expected bias is financial:  it’s expensive so it must work!   
What is disappointing is that someone who wants to get into audio and see this sort of marketing and then jumps into the bandwagon going down the wrong path.

[Guest]

31 minutes ago, Addicted to music said:

if you have a look at what they are charging for this rebadged switch,  I have no sympathy for them.   However there will always be a market niche generated by expected bias.   There are many threads here doing the rounds doing  just that, and when someone trying to explain on those threads that it’s virtually impossible by explaining the way ethernet and applications work it’s generally dismissed or they are seen as trolls.   What they believe they hear rules, however the ear and brain can be deceiving,  there is nothing we can’t measure what the is sensitive to, in fact most measurement instrument goes beyond the thread hold of hearing, here at -160db is way beyond the capability of the human ear.    The other expectation and expected bias is financial:  it’s expensive so it must work!   
What is disappointing is that someone who wants to get into audio and see this sort of marketing and then jumps into the bandwagon going down the wrong path.

What device has Uptone rebranded?

[March Audio]

34 minutes ago, Deepthought said:

What device has Uptone rebranded?

Not Upton, but others have.

[Guest]

3 hours ago, March Audio said:

Not Upton, but others have.

So not referring to the actual device under test. OK. Just a word of advice to those publicly defaming a manufacturer's product to perhaps make an effort be a bit more specific.

Edited August 18, 2023 by Deepthought
added

[March Audio]

1 minute ago, Deepthought said:

So not referring to the actual device under test. OK.

 

No, the Uptone is an original design.

[POV]

9 hours ago, Addicted to music said:

What is disappointing is that someone who wants to get into audio and see this sort of marketing and then jumps into the bandwagon going down the wrong path.

 

Or joins an audio forum like Stereonet and sees a bunch of threads with experienced users extolling the virtues of of these type of devices and other associated accessories.  

Edited August 18, 2023 by POV

[Guest]

1 hour ago, POV said:

 

Or joins an audio forum like Stereonet and sees a bunch of threads with experienced users extolling the virtues of of these type of devices and other associated accessories.  

Or joins a forum like Stereonet and reads threads full of condescending posts.

[POV]

13 minutes ago, Deepthought said:

Or joins a forum like Stereonet and reads threads full of condescending posts.

 

  No condescension is implied or intended, but I do accept that some folks are very sensitive.

[aussievintage]

21 minutes ago, Deepthought said:

Or joins a forum like Stereonet and reads threads full of condescending posts.

 

You are quite right.  They should (hopefully) see the controversy and be prompted to investigate further, come to their own conclusions, and spend their money as they feel fit.  All is right with the world

[Guest]

31 minutes ago, POV said:

 

  No condescension is implied or intended, but I do accept that some folks are very sensitive.

The condescension is pretty explicit and being aware of it is not a case of being overly sensitive. That is gaslighting at its finest.

[March Audio]

6 minutes ago, Deepthought said:

The condescension is pretty explicit and being aware of it is not a case of being overly sensitive. That is gaslighting at its finest.

 

Some are extremely sensitive and do take it as a personal affront if evidence that contradicts their world view is presented.  Doing so is not condescension.

 

 

[POV]

25 minutes ago, Deepthought said:

The condescension is pretty explicit and being aware of it is not a case of being overly sensitive. That is gaslighting at its finest.

Oki doki.  Hope your day gets better there pal.  

[March Audio]

32 minutes ago, Deepthought said:

That is gaslighting at its finest.

 

.....and people aren't being gaslighted by snake oil products?

[sir sanders zingmore]

How about we get back on topic.

That means no accusations, no references to what happens on other forums, no name-calling.

 

Be kind to each other 

[LogicprObe]

 

Thanks for running those tests, Alan.

[Addicted to music]

Ethernet switches are generic, doesn’t have to be rebrand, all uptone did was place a whole lot of “audiophile implementations”  that’s not needed.

 

Looking at the Etherregen pcb straight of there website looks like all they have added is a fibre optic SFP and a BNC for an external clock. What’s added “audiophile approved “   the LT low noise regulators all over the place  that ticks the box for “low noise “.     They  added  2 “low jitter clocks” one for the  4 inline ports and another for the audio end point port.   The audio hend port is isolated from the rest of the circuit where 2 labelled “low jitter class chips” bridge the connection.  
   
I’ve also included a pic of a cheap DLink 5 port $20 switch,  same size form factor,   yeah my clients are cheap!   But this is cost effective and it’s not $680.  It’s to the point and rarely ever fails that moves massive amount of data from any PC station to a end point server reliable, as long as it functions within the TPC/IP specs.      A ethernet switch doesn’t just receives data,   It’s a point to retransmit.   It’s generic regardless of brand.  The DLink doesn’t have these “audiophile implementations “  So to place all those “audiophile implementations” such as low noise regulators,  low jitter clocks and isolate the end point port and when measuring a dac output the FTT plot is the same with or without the etherrgen switch just goes to show a product looking for a solution.  

[Keith_W]

Just saw this. Good work, Alan. Amazing that in 2023, devices like the Cosmos E1DA (I presume that's what you are using) exist. These are affordable to the average hobbyist, all that is required is determination to learn how to take these measurements. 

[March Audio]

14 minutes ago, Keith_W said:

Just saw this. Good work, Alan. Amazing that in 2023, devices like the Cosmos E1DA (I presume that's what you are using) exist. These are affordable to the average hobbyist, all that is required is determination to learn how to take these measurements. 

 

Thank you.  The cosmos is basically capable of taking measurements, that if care is taken, can match the AP555x.  It obviously doesn't have the flexibility, but for $80k less........well....

 

 

[Addicted to music]

On 18/8/2023 at 8:50 AM, Deepthought said:

Yes, I've since read that -https://audiosciencereview.com/forum/index.php?threads/the-real-problem-of-march-audios-sointuva-wg-review-measurements-and-reinforcements-with-klippel-device.35255/post-1229017 

 

You should also heck this out,  not a problem here:

 

https://www.erinsaudiocorner.com/loudspeakers/march_audio_sointuva/