Ethernet Switch and Cables Mania

BJC are originally produced for industry and computing, to transfer big data ? i understood the question like that.

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This was under $40.00, shipped. I thought Iā€™d take a run at it. I do need to figure out if there is a ā€˜factory resetā€™ I should or need to do and if so how to do it!

if it works straight like that, no need to set or reset anything.

:small_blue_diamond:@Michaelb,ā€¦

ā€¢ Chord.
ā€¢ Audioquest.
ā€¢ Wireworld.
ā€¢ Transparent Audio.
ā€¢ Purist Audio Design.
ā€¢ Vertere.
ā€¢ Nordost.
ā€¢ Entreq,.etc,etcā€¦

Pure High-End Hifi-company,.that manufactures ehternet/streaming cables where also considerations and optimisation have taken place against the best soundquality.

ā€¢ Michaelb,.I have understood,.that it is not what is the focus of Blue Jeans Cable,that was the question.

/Peder,:slightly_smiling_face:

Theyā€™re not making claims about sound is my point. The claims they make are evidenced in the data sheets they produce for each cable.

They are I think mainly suppliers for domestic audio and video installations - at least thatā€™s how it seems from the site, with a focus is on ā€œno-nonsenseā€ practicality" and value for money, but not high-end.

That said I find most of the Hi-end Companies play with hi-fi effects like noise floor and soundstage at the expense of instrumental coherence and tonal fidelity. I still havenā€™t heard a Chord company cable (all the way up the Music) that I found acceptable in this trade-off. The Audioquest Vodka was similarly disappointing as was the Wireworld Starlight.

Well, yes: their position is that their Ethernet cables sound the same because bits are bits, although they are a little inconsistent in not recommending Cat6e because of potential adverse effects from the shielding. Itā€™s on their site.

Well, no. If you take a look at their site you can see it is mainly for domestic audio and video. That said the Belden cables they use are produced for all uses and mainly big corporate/industrial installations as you say.

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The Times Microwave catalogue must be just out of view in your picture FRā€¦

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Theyā€™re not
Canare - HQ: Nisshin, Japan
Belden - HQ: St Louis, USA

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This is the exact cp-ax cable im using in my freesat/blue-ray player. Dont know if canare means the company you refer to or a seperate term meaning somethin else. From e-bay.
Belden 1694A -Canare - Digital Coax - 1mt - with Cable sleeve

I donā€™t think BJC is making statement wrt ā€œsoundā€ when using their cables b/c they have no way of knowing the devices to which their cables are getting connected are compliant or within spec.

https://www.bluejeanscable.com/articles/all-ones-and-zeros.htm

Iā€™ve just come to this thread. As Dave said, the difference between the Indigo and Music streaming cables was not small, and the Indigo had been chosen after fairly exhaustive tests between all levels of Ethernet and ā€œStreamingā€ cables a few years ago.

The price of the Music cable is shocking, but the memory of the sound is still there. Iā€™m torn between baulking at the cost for a 1.5 metre length of ā€œboutiqueā€ nonsense that true technicians sneer at (mostly without having heard it) and thinking that if Iā€™d heard the same improvement from a black box with a reassuringly green logo on it Iā€™d already have placed an order. On the other hand I might die tomorrow, so enjoy today.

And yes, the Audioquest Diamond (it was the demo cable from Audioquest so thoroughly run in) was disappointing, though admittedly a fraction of the Musicā€™s cost - though roughly equivalent to what the Indigo had cost me (and it wasnā€™t as good).

BTW, I tried the Signature and Diamond between my NAS and a 2960 edge switch (I use another 2960 to link up my NDX) and they made no difference.

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It knows what itā€™s doing from a business model Iā€™m sure and they have current outstanding debentures so I hope soā€¦ given the text they produce I suspect they donā€™t always understand cause and effect, but rely on prototyping and evaluationā€¦or dare I say A degree of trial and error.
according to Companies House they are a ā€˜Non Specialised Wholesale Tradingā€™ line of businessā€¦ that suggests they buy in, store, potentially repackage, and sell to the retail or commercial tradeā€¦

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Henryski, e-bay is not the best place to find corporate info

The headliner opens up to show
Belden 1694A is the cable
terminated with
Canare 75 Ohm connectors

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I donā€™t know why are you getting so carried away about this: they wrote in an email that their cables sound the same, but also pointed out the blog article about the potential disadvantages of Cat6a in domestic environments.

The article to which you link is emphasising the importance of consistency of manufacture and performance to spec.

Here is what they wrote:

"Actually, the category of the cable has no impact on the sound quality of the audio stream that is sent through it. Since it is a stream of data (digital), the cable can have no impact on the signal (other than total failure to carry the digital signal).

Think of it in terms of Morse code over a telegraph wireā€¦ an SOS pattern (ā€¦ ā€” ā€¦) will be the same regardless of the wire construction or material. As long as all of the dots and dashes are delivered to the receiver, it will be decoded as SOS. Using a more expensive material (silver, for example) will not change the electrical pattern.

The same applies to data. A more expensive or higher category cable cannot change the wording of a document, the pixels of a photograph, or the sound of an audio file any more than the silver telegraph line changes the SOS.The ONLY things you will hear with an inferior cable will be very noticeable pops/clicks (digital errors), or no signal. This means you have a bad cable (regardless of category).

Also, digital audio is a very low bandwidth signal. Even ā€œHD audioā€ or multichannel audio can be easily handled with Cat 5e. Iā€™ve used professional digital recording consoles (Iā€™m a recording engineer of over 30 years) that use Cat 5e to carry 64 channels of uncompressed .wav files, and thereā€™s never a hiccup as far as the sound quality is concerned."

Likewise:

"The 6 is unshielded, and the 6A has a ā€œfloatingā€ shield. with that said, please read this article concerning shielding that was penned by the owner of BJC:

Shielding is, in most cases, not of much use on Ethernet cable. The noise rejection characteristics of the pairs (common-mode noise rejection) are the most important consideration whether the cable is shielded or not, and there are all sorts of practical issues ā€“ foil isnā€™t a very low-resistance path to ground, and noise currents on the shield can sometimes hurt as much as they help.

Performance-wise, the shield causes problems. For one thing, the shield-to-pair spacing is hard to keep consistent, and it affects the pair impedance slightly; for another thing, a lot of the energy at these frequencies bounces off of shields, so internal crosstalk suffers for the benefit of alien crosstalk; and for a third thing, the nature of four pairs in a shielded bundle is such that the symmetry of the pairs is effectively disrupted by a shield which each conductor approaches, and then recedes from, with each twist (the other pairs donā€™t affect this symmetry as profoundly because of the effect of different twist rates).
The result is that if you take two patch cords: our Cat 6, and our Cat 6a, and test both of them both at Cat 6 and at Cat 6a standards, you find that both of them pass both standards, but the Cat 6 passes by larger margins than the 6a due to the effects of the shielding. One might suppose that this means that the 6a should never be used ā€“ but the difference is that in order to be certified the bulk cable must meet tests as well as the finished assembly, and Alien Crosstalk is tested only on bulk cable ā€“ the Cat 6 would fail AXT, while the 6a passes it. Itā€™s a design trade-off ā€“ deterioration in cable internal electricals in order to achieve external targets.

Now, that has some interesting implications in a home or small network environment; if the patch cables are deployed at work stations, rather than on patch panels, then they typically do not run close to one another in bundles. Regardless of what the spec says, the Cat 6 patch would be better than the 6a in such a case, because the actual installation conditions make
alien crosstalk no longer a meaningful consideration.

But, more importantly, in most American network installations the backbone cable is unshielded. What this means is that use of shielded cables in these systems can result in partial shield paths ā€“ which can cause ground-loop problems and the like that can be rather hard to diagnose. The best practice is, if the installed horizontal cabling is unshielded, to use unshielded patch cords, and correspondingly, if the installed horizontal cabling is shielded, to use shielded patch cords. Either the entire system should be shielded, with shields tied to ground at patch panels, or none of it should be grounded. This is one of those ā€œhow to tell the customersā€ conundrums ā€“ we need, when we do make a shielded product available, to be sure that people understand that it really should only be used in particular environments, because the assumption tends to be ā€œshielding = goodā€ and this really does depend on the installation."

My own experience is that shielded cables sound worse in my system. They introduce some nice artefacts with regards to soundstage and noise floor but also remove low-level detail.

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Thanks, that cleared it up. This is what they said:

ā€œActually, the category of the cable has no impact on the sound quality of the audio stream that is sent through it. Since it is a stream of data (digital), the cable can have no impact on the signal (other than total failure to carry the digital signal).ā€

Theyā€™re referring to the audio stream within the confines of the cable and not the end user sound which is the distinction I was looking for. Thanks.

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I am now trying to simulate it myself. Brought the chord Music back at the dealer and took an Audioquest Diamond back home. Will be testing that for the next couple of days. Hope to know more after that testā€¦

i am very curious to know if the chord music is so exceptional that can make the diamond broken and near awful.
I suspect that the forum tends to emphasize all which is related to Chord, even if different companies: Dave, Hugo, Musicā€¦

image

But perhaps you will be disappointed by the diamond. All is possibleā€¦

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It could be, letā€™s see. On the high level of sound production very little details may have a certain impact which is significant enough in a system. So letā€™s see, will keep the forum updated on my experiences.

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